JP3396677B2 - Body fat measurement device - Google Patents
Body fat measurement deviceInfo
- Publication number
- JP3396677B2 JP3396677B2 JP2001206937A JP2001206937A JP3396677B2 JP 3396677 B2 JP3396677 B2 JP 3396677B2 JP 2001206937 A JP2001206937 A JP 2001206937A JP 2001206937 A JP2001206937 A JP 2001206937A JP 3396677 B2 JP3396677 B2 JP 3396677B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode group
- electrode
- measured
- fat
- electrodes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 210000000577 adipose tissue Anatomy 0.000 title claims description 109
- 238000005259 measurement Methods 0.000 title claims description 88
- 210000001596 intra-abdominal fat Anatomy 0.000 claims description 85
- 210000001015 abdomen Anatomy 0.000 claims description 45
- 230000003187 abdominal effect Effects 0.000 claims description 36
- 238000004364 calculation method Methods 0.000 claims description 23
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 210000000579 abdominal fat Anatomy 0.000 claims description 3
- 210000004003 subcutaneous fat Anatomy 0.000 description 45
- 238000000034 method Methods 0.000 description 32
- 239000003550 marker Substances 0.000 description 23
- 238000010586 diagram Methods 0.000 description 22
- 239000000463 material Substances 0.000 description 11
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- 208000031226 Hyperlipidaemia Diseases 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/48—Other medical applications
- A61B5/4869—Determining body composition
- A61B5/4872—Body fat
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Description
【0001】[0001]
【発明の属する技術分野】本発明は、人体の表面近傍に
層状に存在する皮下脂肪、及び人体の内部に存在する内
臓脂肪を簡便且つ高精度で測定する体脂肪測定装置に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a body fat measuring device for easily and highly accurately measuring subcutaneous fat existing in layers near the surface of a human body and visceral fat existing inside a human body.
【0002】[0002]
【従来の技術】媒体の電気インピーダンスの違いを利用
して、三次元物体中の媒体の空間分布を導出する方法と
して、測定対象の物体に電流を印加し、物体の表面上に
誘起した電位分布から物体の内部のインピーダンス分布
を画像化するインピーダンスCT法が知られている。こ
の技術は、生体中の血液、肺、脂肪等の分布の測定に応
用されつつある(日本ME学会BME Vol.8, No.8(199
4)p.49)。2. Description of the Related Art As a method for deriving the spatial distribution of a medium in a three-dimensional object by utilizing the difference in electrical impedance of the medium, a potential distribution induced on the surface of the object by applying a current to the object to be measured. An impedance CT method for imaging an impedance distribution inside an object is known. This technique is being applied to the measurement of the distribution of blood, lungs, fat, etc. in the living body (BME Vol.8, No.8 (199) of the ME Society of Japan.
4) p.49).
【0003】インピーダンスCT法の外、電気インピー
ダンスの測定によって皮下脂肪量並びに内臓脂肪量を測
定する装置として、特開平11−113870号公報に
記載された体脂肪測定装置(従来技術1)や特開平11
−123182号公報に記載された体内脂肪計(従来技
術2)がある。従来技術1に記載の体脂肪測定装置は、
複数の電極を体表面に装着し、電極間のインピーダンス
を計測し電極装着部位断面のインピーダンス行列を生成
し、演算手段が入力手段からの装着部位情報に応じた係
数行列との積を求めて対象断面の体脂肪分布を算出して
いる。また、従来技術2に記載の体内脂肪計は、被験者
の腹部の周囲に巻き付けた巻帯の内側に略等間隔でそれ
ぞれ電流路形成電極及び計測用電極を有する電極対を設
け、選択した2つの電極対の電流路形成電極間に交流を
流して電流路を形成し、計測用電極は、形成された電流
路におけるインピーダンスを計測する。2つの電極対を
適宜選択することで、隣接する電極対間では主として測
定部位の皮下脂肪を計測し、対向する電極間では主とし
て測定部位の内臓脂肪を計測している。In addition to the impedance CT method, as a device for measuring the subcutaneous fat amount and the visceral fat amount by measuring the electric impedance, a body fat measuring device (prior art 1) described in JP-A-11-113870 and JP-A-11-138870 are disclosed. 11
There is a body fat meter (prior art 2) described in Japanese Patent No. 123182. The body fat measurement device described in Related Art 1 is
Attach multiple electrodes on the body surface, measure the impedance between the electrodes, generate an impedance matrix of the electrode attachment site cross section, and calculate the product with the coefficient matrix according to the attachment site information from the input means The body fat distribution of the cross section is calculated. Further, the internal fat meter described in the prior art 2 is provided with electrode pairs each having a current path forming electrode and a measuring electrode at substantially equal intervals inside a winding band wrapped around the abdomen of a subject, and two selected pairs are provided. An alternating current is passed between the current path forming electrodes of the electrode pair to form a current path, and the measuring electrode measures the impedance in the formed current path. By appropriately selecting two electrode pairs, the subcutaneous fat at the measurement site is mainly measured between the adjacent electrode pairs, and the visceral fat at the measurement site is mainly measured between the opposing electrodes.
【0004】[0004]
【発明が解決しようとする課題】インピーダンスCT法
を体脂肪測定に応用した装置では、体表面に誘起された
電位から体内の脂肪分布を推定できる空間分解能が十分
でないため、体脂肪量の定量的算出が難しく、しかも、
その算出に大規模な数値計算が必要であった。In an apparatus in which the impedance CT method is applied to the measurement of body fat, the spatial resolution capable of estimating the fat distribution in the body from the potential induced on the body surface is not sufficient, so that the body fat amount can be quantitatively determined. Difficult to calculate, and
A large-scale numerical calculation was necessary for the calculation.
【0005】従来技術1の体脂肪測定装置は、装着部位
に応じた係数行列の具体的生成方法及びインピーダンス
行列と係数行列との積から対象断面の体脂肪分布画像を
生成する具体的方法に関する記載が無い。The body fat measuring apparatus of the prior art 1 describes a specific method of generating a coefficient matrix according to the wearing site and a specific method of generating a body fat distribution image of a target cross section from the product of the impedance matrix and the coefficient matrix. There is no.
【0006】従来技術2の体内脂肪計は、測定部位の皮
下脂肪量を測定できるが、測定量には、人体の内部に存
在する他の媒体の量や分布の影響が含まれ、精度が不十
分であった。また、人体内部の内臓脂肪を測定しようと
しても、人体の表面近傍に層状に存在する皮下脂肪の影
響が非常に大きく内臓脂肪量を十分な精度で測定できな
かった。The internal fat meter of the prior art 2 can measure the amount of subcutaneous fat at the measurement site. However, the measured amount includes the influence of the amount and distribution of other media existing inside the human body, and the accuracy is poor. Was enough. Further, even when trying to measure the visceral fat inside the human body, the effect of subcutaneous fat existing in layers near the surface of the human body was so great that the visceral fat amount could not be measured with sufficient accuracy.
【0007】本発明は、簡便且つ高精度に、人体の表面
近傍に層状に存在する皮下脂肪の厚み、断面積等の皮下
脂肪量や人体の内部に存在する内臓脂肪量を測定でき、
しかも容易に装着可能な体脂肪測定装置を提供すること
を課題とする。INDUSTRIAL APPLICABILITY The present invention can easily and highly accurately measure the thickness of subcutaneous fat existing in layers near the surface of the human body, the amount of subcutaneous fat such as the cross-sectional area, and the amount of visceral fat present inside the human body.
Moreover, it is an object to provide a body fat measuring device that can be easily worn.
【0008】[0008]
【課題を解決するための手段】前記課題を解決するため
に、本発明の体脂肪測定装置は、被測定体のへそ位置を
基準にして、被測定体の腹部表面上への配置の位置が決
定される一つ以上の電極からなる第1電極群と、被測定
体の背中表面上に配置される一つ以上の電極からなる第
2電極群と、被測定体の表面上で第1電極群と第2電極
群との略中間の位置に配置される二つ以上の電極からな
る第3電極群と、第1電極群から選択した一つの電極及
び第2電極群から選択した一つの電極間に電流を流し、
第3電極群の内の二つの電極間に発生する電圧を測定す
る測定手段と、該電圧値に基づいて被測定体の腹部の脂
肪量を算出する算出手段とを有する。In order to solve the above-mentioned problems, the body fat measuring device of the present invention determines the position of disposition on the abdominal surface of the measured body with reference to the navel position of the measured body. A first electrode group consisting of one or more electrodes to be determined, a second electrode group consisting of one or more electrodes arranged on the back surface of the object to be measured, and a first electrode on the surface of the object to be measured. Electrode group selected from the first electrode group and one electrode selected from the third electrode group, which is composed of two or more electrodes arranged at a position approximately midway between the second electrode group and the second electrode group Current between them,
The measuring unit has a measuring unit that measures a voltage generated between two electrodes in the third electrode group, and a calculating unit that calculates the fat mass of the abdomen of the body to be measured based on the voltage value.
【0009】あるいは、被測定体のへそ位置を基準にし
て、被測定体の腹部表面上への配置の位置が決定される
一つ以上の電極からなる第1電極群と、被測定体の背中
表面上に配置される三つ以上の電極からなる第2電極群
と、第2電極群から選択した二つの電極間に電流を流
し、第1電極群から選択した一つの電極及び第2電極群
から選択した一つの電極間に発生する電圧を測定する測
定手段と、該電圧値に基づいて被測定体の腹部の脂肪量
を算出する算出手段とを有する。Alternatively, a first electrode group consisting of one or more electrodes whose position on the abdominal surface of the object to be measured is determined with reference to the navel position of the object to be measured, and the back of the object to be measured. A second electrode group consisting of three or more electrodes arranged on the surface, and a current flowing between two electrodes selected from the second electrode group to form one electrode and the second electrode group selected from the first electrode group. It has a measuring means for measuring the voltage generated between the one electrodes selected from the above, and a calculating means for calculating the fat mass of the abdomen of the body to be measured based on the voltage value.
【0010】また、本発明の体脂肪測定装置は、被測定
体の腹部の脂肪量を算出する際に、性別及び/又は年齢
を考慮して算出精度を高めるようにしている。In addition, the body fat measuring device of the present invention is designed to improve the calculation accuracy in consideration of sex and / or age when calculating the abdominal fat mass of the body to be measured.
【0011】[0011]
【0012】[0012]
【発明の実施の形態】(第1の実施の形態)第1の実施
の形態の体脂肪測定装置は、人体の内部に存在する内臓
脂肪の断面積などの内臓脂肪量を測定する。BEST MODE FOR CARRYING OUT THE INVENTION (First Embodiment) The body fat measuring apparatus according to the first embodiment measures the amount of visceral fat such as the cross-sectional area of visceral fat existing inside the human body.
【0013】図1に示す第1実施例の体脂肪測定装置
は、被測定体である人体のへそ位置を基準にして人体の
腹部表面上に配置する一つの電極からなる第1電極群1
と、人体の背中表面上に配置する一つの電極からなる第
2電極群2と、人体の表面上で第1電極群1と第2電極
群2との中間の位置に配置する二つの電極からなる第3
電極群3と、第1電極群1を腹部表面上に配置する際の
基準位置を示すへそ位置マーカー4と、略非伸縮性のベ
ルト5と、ベルト5を人体腹部に巻いて固定するための
バックル6,7と、制御部8とを備える。なお、第1電
極群1及び第2電極群2のそれぞれは、二つ以上の電極
であってもよく、第3電極群3は、三つ以上の電極であ
ってもよい。本発明に係る体脂肪測定用ベルトは、これ
ら第1電極群1、第2電極群2、第3電極群3、及びへ
そ位置マーカー4を備えたものである。The body fat measuring apparatus according to the first embodiment shown in FIG. 1 includes a first electrode group 1 composed of one electrode which is arranged on the abdominal surface of the human body as a reference, based on the navel position of the human body.
And a second electrode group 2 consisting of one electrode arranged on the back surface of the human body, and two electrodes arranged at an intermediate position between the first electrode group 1 and the second electrode group 2 on the surface of the human body Become the third
An electrode group 3, a navel position marker 4 indicating a reference position when arranging the first electrode group 1 on the abdominal surface, a substantially non-stretchable belt 5, and a belt 5 for fixing the belt 5 around the human abdomen. The buckles 6 and 7 and the control unit 8 are provided. Each of the first electrode group 1 and the second electrode group 2 may be two or more electrodes, and the third electrode group 3 may be three or more electrodes. The body fat measurement belt according to the present invention includes the first electrode group 1, the second electrode group 2, the third electrode group 3, and the navel position marker 4.
【0014】制御部8は、第1電極群1の電極と第2電
極群2の電極間に電流を流し、第3電極群3の二つの電
極間に発生する電圧を測定する測定手段と、測定された
電圧値に基づいて人体腹部の脂肪量を算出する算出手段
とを備える。さらに制御部8は、測定者の腹部外周長
(ウエスト長)や性別及び必要に応じて年齢などの身体
情報を入力するための入力装置や、入力された身体情報
及び算出した脂肪量を出力するための表示装置9を備え
てもよい。このときの算出手段は、測定された電圧値と
入力された測定者の腹部外周長や性別(及び必要に応じ
て年齢)を用いて人体腹部の脂肪量を算出する。また、
制御部8と第1電極群1、第2電極群2、第3電極群3
とは電気配線によって電気的に接続されている。この
際、配線(電気コード)は測定の邪魔にならないように
ベルト5内部に埋め込むことができる。The control unit 8 supplies a current between the electrodes of the first electrode group 1 and the electrodes of the second electrode group 2 to measure the voltage generated between the two electrodes of the third electrode group 3, And a calculating means for calculating the fat mass of the human abdomen based on the measured voltage value. Further, the control unit 8 outputs an input device for inputting physical information such as the abdominal outer circumference length (waist length) of the measurer, sex, and age as necessary, and the input physical information and the calculated fat mass. The display device 9 may be provided. The calculating means at this time calculates the fat amount of the human abdomen using the measured voltage value and the input abdominal circumference and sex (and age as necessary) of the measurer. Also,
Control unit 8 and first electrode group 1, second electrode group 2, third electrode group 3
And are electrically connected to each other by electric wiring. At this time, the wiring (electric cord) can be embedded inside the belt 5 so as not to interfere with the measurement.
【0015】次に、体脂肪測定方法を説明する。まず、
図2に示すように、測定者はへそ位置マーカー4がへそ
位置に来るようにベルト5を腹部(ウエスト)に巻き、
バックル6でベルト5の長さを調節しながらベルト5を
絞り、バックル6をバックル7に挿入してベルト5を腹
部に固定する。Next, a body fat measuring method will be described. First,
As shown in FIG. 2, the measurer winds the belt 5 around the abdomen (waist) so that the navel position marker 4 comes to the navel position,
While adjusting the length of the belt 5 with the buckle 6, the belt 5 is squeezed and the buckle 6 is inserted into the buckle 7 to fix the belt 5 to the abdomen.
【0016】次に、制御部8を操作して測定者のウエス
ト長や性別(及び必要に応じて年齢)などの身体情報を
入力し、その後、制御部8に設けられた測定開始ボタン
などの入力を合図に、測定手段が第1電極群1の電極と
第2電極群2の電極間に電流を流して第3電極群3の二
つの電極間に発生する電圧を測定し、算出手段が測定さ
れた電圧値と入力された身体情報等に基づいて測定者の
腹部の脂肪量を算出する。算出された脂肪量は表示装置
9に出力される。測定時の測定者の姿勢は、立位、座
位、仰臥位などをとることができるが、測定の簡便性及
び安定性の観点からは立位が好ましく、X線CTによる
腹部断層像の撮影姿勢に合わせるという観点からは仰臥
位が好ましい。また、測定時の呼吸状態として、自然呼
気、自然吸気、最大呼気、最大吸気などをとることがで
きるが、測定の簡便性及び安定性の観点からは自然呼気
又は自然吸気が好ましい。また、測定は通例、室温環境
下で行うことができる。たとえば0〜40℃の間で行う
ことができるが、快適性及び電極と肌との電気的接触を
良好に保つという観点からは10〜35℃が好ましい。Next, the control unit 8 is operated to input body information such as the waist length and sex (and age as required) of the measurer, and then the measurement start button or the like provided in the control unit 8 is input. With the input as a signal, the measuring means measures the voltage generated between the two electrodes of the third electrode group 3 by passing a current between the electrodes of the first electrode group 1 and the electrodes of the second electrode group 2, and the calculating means The fat amount in the abdomen of the measurer is calculated based on the measured voltage value and the input physical information and the like. The calculated fat amount is output to the display device 9. The posture of the measurer at the time of measurement can be standing, sitting, or supine, but the standing position is preferable from the viewpoint of measurement simplicity and stability, and the posture of abdominal tomographic imaging by X-ray CT is preferable. The supine position is preferable from the viewpoint of adjusting to. Further, as the breathing state at the time of measurement, natural exhalation, natural inhalation, maximum exhalation, maximum inhalation, etc. can be taken, but from the viewpoint of convenience and stability of measurement, natural exhalation or natural inspiration is preferable. Moreover, the measurement can be usually performed in a room temperature environment. For example, it can be performed at a temperature of 0 to 40 ° C., but 10 to 35 ° C. is preferable from the viewpoint of maintaining good comfort and good electrical contact between the electrode and the skin.
【0017】算出する脂肪量は典型的には、人体腹部の
内臓脂肪量、特にベルトを巻いた胴体断面における内臓
脂肪断面積である。また、内臓脂肪量の多い人は概して
総脂肪量(内臓脂肪量と皮下脂肪量の和)も多いという
相関があるため、本発明の測定装置によって人体の総脂
肪量を近似的に算出することもできる。The fat mass to be calculated is typically the visceral fat mass in the abdomen of the human body, particularly the visceral fat cross-sectional area in the belt-rolled body section. In addition, there is a correlation that a person with a large amount of visceral fat generally has a large amount of total fat (the sum of visceral fat amount and subcutaneous fat amount). Therefore, the total fat amount of the human body should be approximately calculated by the measuring device of the present invention. You can also
【0018】制御部8の中の測定手段は、電流源と電圧
計を備える。電流源は扱いやすさの観点から交流である
ことが好ましく、交流の周波数は、通常10〜500k
Hzを用いることができ、特に50〜200kHzを用
いるのが好ましい。また、この時の電流値は通常0.3
〜3mAを用いることができる。電圧計による電圧値
(電圧の振幅又は実効値)の測定の際に位相遅れを同時
に測定してもよく、その場合、測定した位相遅れをデー
タ解析に利用できる。The measuring means in the control unit 8 comprises a current source and a voltmeter. The current source is preferably an alternating current from the viewpoint of easy handling, and the frequency of the alternating current is usually 10 to 500 k.
Hz can be used, and it is particularly preferable to use 50 to 200 kHz. The current value at this time is usually 0.3.
~ 3 mA can be used. The phase delay may be measured at the same time when the voltage value (voltage amplitude or effective value) is measured by the voltmeter, and in that case, the measured phase delay can be used for data analysis.
【0019】第3電極群3の二つの電極間で測定される
電圧Vは、第1電極群1と第2電極群2を通して人体の
腹部に略横断的に電流を流したときに、第1電極群1と
第2電極群2との中間の位置に発生する電位の空間変化
率を反映する。この電位の空間変化率は内臓脂肪の量と
強く相関し、空間変化率の絶対値が大きい場合は内臓脂
肪の量が多く、小さい場合は内臓脂肪量が少ない。しか
も、その空間変化率は皮下脂肪の分布や量にほとんど影
響されないため、簡便且つ高精度に内臓脂肪の量を算出
できる。The voltage V measured between the two electrodes of the third electrode group 3 is the first voltage when a current is applied to the abdomen of the human body through the first electrode group 1 and the second electrode group 2 substantially transversely. The spatial change rate of the potential generated at the intermediate position between the electrode group 1 and the second electrode group 2 is reflected. The spatial change rate of this potential strongly correlates with the amount of visceral fat. When the absolute value of the spatial change rate is large, the visceral fat amount is large, and when it is small, the visceral fat amount is small. Moreover, since the spatial change rate is hardly affected by the distribution and amount of subcutaneous fat, the amount of visceral fat can be calculated easily and with high accuracy.
【0020】内臓脂肪量の定量的な算出のため、電圧V
と内臓脂肪の量mとを関係付ける相関式を予め作成し、
制御部8の中の算出手段に入力しておく。具体的には、
種々の量mを持つ被験者を複数用意し、それらに対して
前述の方法で測定した電圧値Vと、実際の内臓脂肪量m
の相関式を作成する。電圧値Vの測定では、全ての被験
者で流す電流を同一にするか、あるいは、被験者毎に異
なる電流を流し、得られた電圧値を同一の電流量を流し
たときに発生する電圧値に換算する。内臓脂肪量mを測
定する方法としては、X線CT法やMRI法から得られ
た断層像から断面積や体積を求める方法がある。なお、
断層像から断面積を算出する場合、電流の拡がりを考慮
して、該断面だけでなく、その近傍の断層像をも撮影
し、それらの複数枚の断層像の平均から内臓脂肪の断面
積を算出すると精度が向上する。電圧値Vによって総脂
肪量(内臓脂肪量と皮下脂肪量の和)を算出する場合
も、同様な方法で相関式を作成すればよい。To quantitatively calculate the amount of visceral fat, the voltage V
And a correlation equation relating the visceral fat amount m with
It is input to the calculation means in the control unit 8. In particular,
A plurality of subjects having various amounts m were prepared, and the voltage value V measured by the above-mentioned method for them and the actual visceral fat amount m
Create a correlation equation for. In the measurement of the voltage value V, all the subjects are made to have the same current, or different currents are made to flow for each subject, and the obtained voltage value is converted into a voltage value generated when the same amount of current is made to flow. To do. As a method of measuring the visceral fat mass m, there is a method of obtaining a cross-sectional area and a volume from a tomographic image obtained by an X-ray CT method or an MRI method. In addition,
When calculating the cross-sectional area from a tomographic image, taking into account the spread of the current, not only the cross-section but also a tomographic image in the vicinity of the cross-sectional image is taken, and the cross-sectional area of visceral fat is calculated from the average of these multiple tomographic images. The accuracy improves when calculated. When the total fat amount (sum of visceral fat amount and subcutaneous fat amount) is calculated by the voltage value V, the correlation equation may be created by a similar method.
【0021】相関式は多変量解析手法を用いてたとえば
線形多項式で近似して表せ、回帰係数a0、a1及び入
力された測定者の腹部外周長Uを用いて、m=a0+a
1・V・Unなどとなる。nは0または正の実数の値を
とるべき乗の指数であり、相関が最も高くなるようにそ
の値を決めることができる。典型的には、量mが内臓脂
肪の断面積などの絶対値を表す場合、n=3となり、量
mが腹部の全断面積に対する内臓脂肪の断面積の比など
の相対値を表す場合、n=1となる。説明変数の数を増
やして相関式の精度を向上することもできる。たとえ
ば、m=a0+a1・V・Un+a2・U n’やm=
a0+a1・V・Un+a2・V・Un’などが例示さ
れる。ここで、a2は回帰係数、n’は0又は正の実数
の値をとるべき乗の指数であり、相関が最も高くなるよ
うにその値を決めることができる。あるいは非線型な多
項式で相関式を作成し、算出の精度を向上させることも
できる。種々の形の非線型多項式をつくることができる
が、たとえば、a0、a1、a2、a3を回帰係数とし
て、a0・m3+a1・m2+a2・m+a3= V・
Unなどが例としてあげられる。また、算出の精度を向
上させるため、測定者の性別によって相関式を使い分け
ることもできる。すなわち、男性用の相関式と女性用の
相関式をそれぞれ作成し、入力装置に入力された測定者
の性別の情報をもとに、使用する相関式を選択する。相
関式が設定されれば、内臓脂肪量の未知の測定者に対し
て測定された電圧値Vから相関式に従って内臓脂肪量m
を算出できる。The correlation equation can be expressed by approximation using, for example, a linear polynomial using a multivariate analysis method, and m = a0 + a using the regression coefficients a0 and a1 and the input abdomen outer circumference U of the measurer.
And so on 1 · V · U n. n is an exponent of a power that takes a value of 0 or a positive real number, and the value can be determined so that the correlation is highest. Typically, when the amount m represents an absolute value such as the cross-sectional area of visceral fat, n = 3, and when the amount m represents a relative value such as the ratio of the cross-sectional area of visceral fat to the total cross-sectional area of the abdomen, n = 1. The number of explanatory variables can be increased to improve the accuracy of the correlation equation. For example, m = a0 + a1 · V · U n + a2 · U n 'or m =
such as a0 + a1 · V · U n + a2 · V · U n ' is illustrated. Here, a2 is a regression coefficient, n'is an exponent of a power of 0 or a positive real number, and the value can be determined so that the correlation becomes highest. Alternatively, it is also possible to improve the calculation accuracy by creating a correlation equation with a non-linear polynomial. Various forms of non-linear polynomials can be created. For example, with a0, a1, a2, and a3 as regression coefficients, a0 · m 3 + a1 · m 2 + a2 · m + a3 = V ·
Un and the like are given as examples. Further, in order to improve the accuracy of calculation, it is possible to properly use the correlation equation depending on the sex of the measurer. That is, the correlation equation for men and the correlation equation for women are created, and the correlation equation to be used is selected based on the information of the sex of the measurer input to the input device. If the correlation formula is set, the visceral fat mass m is calculated according to the correlation formula from the voltage value V measured with respect to the unknown measurer of the visceral fat mass.
Can be calculated.
【0022】ベルト5は、たとえばビニール、合成樹
脂、合成皮革、天然皮革、織布、不織布などの略非伸縮
性の素材で構成できる。第1〜第3電極群は直接ベルト
5上に固定してもよいし、第1〜第3電極群をそれぞれ
胴体表面に沿って湾曲可能な支持体上に配置し、その支
持体をベルト5に固定する構造としてもよい。支持体は
たとえば合成樹脂やゴムなどで作ることができる。制御
部8、第1〜第3電極群、配線等をベルト5から脱着可
能な構造にして、ベルト5のみを測定装置から取りはず
し、ベルト5の洗浄を容易にしたり、新しいベルト5に
交換できるようにすることもできる。また、長さを示す
目盛りをベルト5に付加することによって、ベルト5を
使って測定者が自分のウエスト長を計測できるようにし
てもよい。また、ベルト5を腹部に締め付ける強さを測
定者によらずに一定にするため、バックル6の位置を、
測定者のウエスト長に応じたベルト5上の適切な位置に
設定できるようにした目盛りをベルト5に付加すること
もできる。また、第1電極群1と第2電極群2との間以
外のベルト部に合成ゴムや天然ゴムなどの伸縮性素材を
用いてもよい。また、電極と肌との接触を十分にするた
め、ベルト5の外側に第二のベルトを配置した二重ベル
ト構造にすることもできる。第二のベルトを締めること
によってベルト5上の電極が肌に強く押しつけられ、電
極と肌との接触が確実になる。The belt 5 can be made of a substantially non-stretchable material such as vinyl, synthetic resin, synthetic leather, natural leather, woven cloth, and non-woven cloth. The first to third electrode groups may be fixed directly on the belt 5, or the first to third electrode groups may be arranged on a support body that can be curved along the body surface, and the support body may be attached to the belt 5. The structure may be fixed to. The support can be made of, for example, synthetic resin or rubber. The control unit 8, the first to third electrode groups, the wiring, etc. are made detachable from the belt 5 so that only the belt 5 can be removed from the measuring device so that the belt 5 can be easily washed or replaced with a new belt 5. You can also Further, a scale indicating the length may be added to the belt 5 so that the measurer can measure his / her waist length using the belt 5. Further, in order to make the strength of tightening the belt 5 on the abdomen constant regardless of the measurer, the position of the buckle 6 is
It is also possible to add a scale to the belt 5 so that it can be set at an appropriate position on the belt 5 according to the waist length of the measurer. A stretchable material such as synthetic rubber or natural rubber may be used for the belt portion other than between the first electrode group 1 and the second electrode group 2. Further, in order to make sufficient contact between the electrodes and the skin, a double belt structure in which a second belt is arranged outside the belt 5 can be adopted. By tightening the second belt, the electrodes on the belt 5 are strongly pressed against the skin, and the contact between the electrodes and the skin is ensured.
【0023】本発明の測定装置を腹部に装着したとき、
第2電極群2は背中に、第3電極群3は脇腹におよそ配
置されるが、第1〜第3電極群が非伸縮性のベルト5に
固定されているため、ウエスト上で第2電極群2と第3
電極群3が配置される位置は測定者のウエスト長によっ
て変化する。このとき、高い測定精度を実現するため
に、第1電極群1と第3電極群3との距離L1と、第2
電極群2と第3電極群3との距離L2とが略等しくなる
ようにして各電極群をベルト5上に固定する。これによ
って、第3電極群3は、測定者のウエスト長によらず必
ず、第1電極群1と第2電極群2の中間地点で発生する
電圧を検出する。主にウエスト長60〜110cmの測
定者を測定対象とする場合、ベルト5に沿って測定した
第1電極群1と第2電極群2との距離を35〜50cmに
設定することが好ましく、特に40〜45cmに設定す
ることが好ましい。When the measuring device of the present invention is attached to the abdomen,
The second electrode group 2 is arranged on the back and the third electrode group 3 is arranged on the flank, but since the first to third electrode groups are fixed to the non-stretchable belt 5, the second electrode group is arranged on the waist. Group 2 and 3
The position where the electrode group 3 is arranged changes depending on the waist length of the measurer. At this time, in order to realize high measurement accuracy, the distance L1 between the first electrode group 1 and the third electrode group 3
Each electrode group is fixed on the belt 5 so that the distance L2 between the electrode group 2 and the third electrode group 3 becomes substantially equal. As a result, the third electrode group 3 always detects the voltage generated at the intermediate point between the first electrode group 1 and the second electrode group 2 regardless of the waist length of the measurer. When mainly measuring a waist length 60-110 cm measurer, it is preferable to set the distance between the first electrode group 1 and the second electrode group 2 measured along the belt 5 to 35 to 50 cm, particularly It is preferably set to 40 to 45 cm.
【0024】本発明の測定装置において、図1、図2に
示すように、第3電極群3が人体腹部の右脇腹に当たる
ような構造にしてもよいし、左右対称な構造にして左脇
腹に当たる構造にしてもよい。胃から遠い右脇腹に第3
電極群3が当たる構造の方が、測定値が食事の影響を受
けにくい傾向がある。In the measuring device of the present invention, as shown in FIGS. 1 and 2, the third electrode group 3 may have a structure in which it hits the right flank of the human abdomen, or has a symmetrical structure and hits the left flank. It may be structured. Third on the right flank far from the stomach
In the structure in which the electrode group 3 hits, the measured value tends to be less affected by food.
【0025】第3電極群3の中の二つの電極間の距離は
最適な範囲に設定することが好ましい。電極間距離が小
さすぎると、電極間に十分な電位差が発生せず、測定感
度上好ましくない。この観点から、電極間の距離(中心
間距離)は通常3cm以上であることが好ましい。一
方、電極間距離が大きすぎると測定電圧に皮下脂肪の分
布や量の影響が現れるため、電極間距離は腹部外周長の
1/6以下であることが好ましい。たとえばウエスト長
60〜110cmの測定者を測定対象とする場合、電極
間距離を3〜10cmにすることが好ましい。The distance between the two electrodes in the third electrode group 3 is preferably set in an optimum range. If the distance between the electrodes is too small, a sufficient potential difference does not occur between the electrodes, which is not preferable in terms of measurement sensitivity. From this viewpoint, the distance between the electrodes (center-to-center distance) is usually preferably 3 cm or more. On the other hand, when the inter-electrode distance is too large, the distribution and amount of subcutaneous fat affect the measurement voltage, so the inter-electrode distance is preferably ⅙ or less of the abdominal circumference. For example, when the measurement target is a measurer having a waist length of 60 to 110 cm, the distance between the electrodes is preferably 3 to 10 cm.
【0026】電極の形状としてはたとえば円盤状や矩形
状のものを用いることができる。また、電極の大きさと
しては、電極形状が円盤状の場合、たとえば直径0.6
〜3.5cmの電極を用いることができ、特に直径1.
5〜2.5cmの電極を用いることが好ましい。電極形
状が矩形状の場合、たとえば、横幅0.6〜3cm、縦
幅1.5〜7cmの電極を用いることができる。電極の
表面形状は平面、凹面、あるいは凸面とすることができ
る。電極表面の曲率半径が小さすぎると、電極が肌に接
触しない部分が発生したり、かける圧力によって肌と電
極との接触面積が変化するなどのため、曲率半径は5m
m以上であることが好ましい。電極の材質としては、合
成樹脂板に金属めっきを施したもの、金属板や導電性樹
脂板を使用することができる。また、接触抵抗を低減す
るために、肌と電極との接触面に導電性の液体やゲル、
クリームを塗布したり、シート状の導電性ゲルを挟むこ
とができる。導電性の液体として、たとえば水道水、化
粧水や食塩水などのイオンを含んだ水があげられる。ま
た、接触抵抗を低減するために、電極を胴体表面に装着
後、電極と肌とがなじむまで数秒から数十秒間待った後
に測定を開始する(測定開始ボタンを入力する)ことが
好ましい。As the shape of the electrode, for example, a disk shape or a rectangular shape can be used. The size of the electrode is, for example, a diameter of 0.6 when the electrode is disk-shaped.
Electrodes of ~ 3.5 cm can be used, especially with a diameter of 1.
It is preferable to use electrodes of 5 to 2.5 cm. When the electrode shape is rectangular, for example, an electrode having a horizontal width of 0.6 to 3 cm and a vertical width of 1.5 to 7 cm can be used. The surface shape of the electrodes can be flat, concave or convex. If the radius of curvature of the electrode surface is too small, the electrode will not come into contact with the skin, or the contact area between the skin and the electrode will change depending on the applied pressure.
It is preferably m or more. As a material for the electrodes, a synthetic resin plate plated with metal, a metal plate or a conductive resin plate can be used. In addition, in order to reduce the contact resistance, a conductive liquid or gel on the contact surface between the skin and the electrode,
It is possible to apply a cream or sandwich a sheet-shaped conductive gel. Examples of the conductive liquid include tap water, water containing lotions, salt water, and other ions. Further, in order to reduce the contact resistance, it is preferable that after the electrode is mounted on the body surface, the measurement is started (the measurement start button is input) after waiting for several seconds to several tens of seconds until the electrode and the skin become compatible.
【0027】本発明の測定装置は、図3に示すように、
制御部8とベルト5とを分離して、配線コード(電気コ
ード)10で両者を接続した構成にしてもよい。このと
き配線コード10はコネクタによって制御部8あるいは
ベルト5と脱着可能にすることもできる。The measuring device of the present invention, as shown in FIG.
The control unit 8 and the belt 5 may be separated and connected to each other by a wiring cord (electric cord) 10. At this time, the wiring cord 10 may be detachable from the control unit 8 or the belt 5 by a connector.
【0028】図4に示す第2実施例の体脂肪測定装置
は、第1実施例の非伸縮性ベルト5を伸縮性ベルト11
に変え、バックル6をベルト11の端に取り付けたこと
を特徴とする。これ以外は、第1実施例の体脂肪測定装
置と略同様に構成される。伸縮性ベルト11は、たとえ
ば合成ゴム、天然ゴム、伸縮性の不織布、蛇腹様に折り
込まれた合成樹脂等の伸縮性の素材で構成される。ベル
ト全体が伸縮性素材で構成されてもよく、一部を伸縮性
素材として残りを非伸縮性素材とした構成でもよい。In the body fat measuring device of the second embodiment shown in FIG. 4, the non-stretchable belt 5 of the first embodiment is replaced by the stretchable belt 11.
And the buckle 6 is attached to the end of the belt 11. Other than this, the body fat measuring apparatus according to the first embodiment has substantially the same configuration. The elastic belt 11 is made of an elastic material such as synthetic rubber, natural rubber, elastic nonwoven fabric, or synthetic resin folded in a bellows shape. The entire belt may be made of a stretchable material, or a part of the belt may be made of a stretchable material and the rest may be made of a non-stretchable material.
【0029】第2実施例の体脂肪測定は、ベルト11の
伸縮性を利用してベルト11を伸ばしながらウエストに
巻いて装着する以外は第1実施例と同様な方法で行う。The measurement of body fat in the second embodiment is carried out in the same manner as in the first embodiment except that the elasticity of the belt 11 is used and the belt 11 is stretched and wrapped around the waist.
【0030】本実施例の体脂肪測定装置では、ベルト1
1が伸縮性素材で構成されているため、各電極群間の距
離が調節可能であり、測定者のウエスト長に応じて電極
群間の距離が変化する。そのため、異なるウエスト長の
測定者に対しても、第1〜第3電極群はほぼ対応するウ
エスト上の位置に配置される。第1電極群から第2電極
群との距離は、ベルト11の長さ(伸びの無い状態での
長さ)の1/3〜2/3とすることが好ましい。さら
に、第1電極群1と第3電極群3との距離L1及び第2
電極群2と第3電極群3との距離L2が等しくなるよう
に電極群1〜3をベルト11上に配置することが好まし
い。ウエスト長60〜90cmの測定者を測定対象とす
る場合には、ベルト11の長さ(伸びの無い状態での長
さ)をたとえば56〜59cmにすることができ、この
ときベルト11に沿って測った第1電極群1と第2電極
群2との距離は20〜40cmとすることができる。In the body fat measuring device of this embodiment, the belt 1 is used.
Since 1 is made of a stretchable material, the distance between the electrode groups can be adjusted, and the distance between the electrode groups changes according to the waist length of the measurer. Therefore, the 1st-3rd electrode groups are arrange | positioned in the position on the substantially corresponding waist also with respect to the person who has a different waist length. The distance from the first electrode group to the second electrode group is preferably ⅓ to ⅔ of the length of the belt 11 (the length in the state where the belt 11 is not stretched). Further, the distance L1 between the first electrode group 1 and the third electrode group 3 and the second
It is preferable to arrange the electrode groups 1 to 3 on the belt 11 so that the distance L2 between the electrode group 2 and the third electrode group 3 becomes equal. When measuring a person having a waist length of 60 to 90 cm, the length of the belt 11 (the length in a state without stretching) can be set to 56 to 59 cm, for example. The measured distance between the first electrode group 1 and the second electrode group 2 can be 20 to 40 cm.
【0031】内臓脂肪量mと測定電圧Vとの間の関係は
第1実施例と同様な相関式で与えられる。相関式中のべ
き乗の指数nの典型的な値は、第3電極群3の中の二つ
の電極間距離が一定に保たれる場合には第1実施例と同
様のn=3及びn=1であり、電極間距離がウエスト長
とともに変化する場合にはそれぞれn=2及びn=0と
なる。The relationship between the visceral fat mass m and the measured voltage V is given by the same correlation equation as in the first embodiment. Typical values of the exponent n in the correlation equation are n = 3 and n = as in the first embodiment when the distance between two electrodes in the third electrode group 3 is kept constant. 1 and n = 2 and n = 0 when the inter-electrode distance changes with the waist length, respectively.
【0032】また本発明の測定装置においても、図3に
示す測定装置と同様に、制御部8とベルト11とを分離
して、配線コード(電気コード)で両者を接続した構成
にしてもよい。Also in the measuring apparatus of the present invention, as in the measuring apparatus shown in FIG. 3, the control section 8 and the belt 11 may be separated and connected by a wiring cord (electric cord). .
【0033】図5に示す第3実施例の体脂肪測定装置
は、非伸縮性ベルト5上に可動レール12を2個所設
け、第2電極群2と第3電極群3を可動レール12に沿
ってスライド可能な構成にしたことを特徴とする。これ
以外は、第1実施例の体脂肪測定装置と略同様に構成さ
れる。また、第3実施例の体脂肪測定は、あらかじめ測
定者が可動レール12を用いて、自分のウエスト長に応
じた最適位置に第2電極群2と第3電極群3とを設定す
る以外は第1実施例と同様な方法で行う。In the body fat measuring device of the third embodiment shown in FIG. 5, two movable rails 12 are provided on the non-stretchable belt 5, and the second electrode group 2 and the third electrode group 3 are arranged along the movable rail 12. The feature is that it is slidable. Other than this, the body fat measuring apparatus according to the first embodiment has substantially the same configuration. In addition, in the body fat measurement of the third embodiment, the measurer uses the movable rail 12 in advance except that the second electrode group 2 and the third electrode group 3 are set at the optimum positions according to their waist lengths. The same method as in the first embodiment is used.
【0034】本実施例の体脂肪測定装置では、第2電極
群2と第3電極群3が可動レール12に沿ってスライド
できるため、各電極群間の距離を調節可能であり、測定
者が自分のウエスト長に応じて電極群をベルト5上の最
適位置に設定することができる。第1電極群から第2電
極群との距離は、測定者のウエスト長の1/3〜2/3
とすることが好ましく、さらに、第1電極群1と第3電
極群3との距離及び第2電極群2と第3電極群3との距
離を等しくすることが好ましい。たとえば第1電極群か
ら第2電極群との距離をウエスト長の1/2とし、第1
電極群1と第3電極群3の中間位置との距離をウェスト
長の1/4に設定することができる。この電極群の位置
設定の規則はすべての測定者に共通とすることが好まし
い。また、可動レール12の周辺に目盛りをつけ、測定
者がその目盛りに合わせて第2電極群2と第3電極群3
の位置を設定できる構成にしてもよい。In the body fat measuring device of this embodiment, since the second electrode group 2 and the third electrode group 3 can slide along the movable rail 12, the distance between the electrode groups can be adjusted and the measurer The electrode group can be set at the optimum position on the belt 5 according to one's waist length. The distance from the first electrode group to the second electrode group is 1/3 to 2/3 of the waist length of the measurer.
The distance between the first electrode group 1 and the third electrode group 3 and the distance between the second electrode group 2 and the third electrode group 3 are preferably equal. For example, the distance from the first electrode group to the second electrode group is ½ of the waist length,
The distance between the electrode group 1 and the intermediate position of the third electrode group 3 can be set to 1/4 of the waist length. It is preferable that the rule for setting the position of the electrode group is common to all the measurers. In addition, a scale is provided around the movable rail 12, and the measurer matches the scale with the second electrode group 2 and the third electrode group 3
The position may be set.
【0035】また本発明の測定装置においても、図3に
示す測定装置と同様に、制御部8とベルト5とを分離し
て、配線コード(電気コード)で両者を接続した構成に
してもよい。Also in the measuring apparatus of the present invention, as in the measuring apparatus shown in FIG. 3, the control unit 8 and the belt 5 may be separated and connected by a wiring cord (electrical cord). .
【0036】図6に示す第4実施例の体脂肪測定装置
は、ベルト5上に第2電極群用はめ込み穴13と第3電
極群用はめ込み穴14を設け、はめ込み穴13,14に
はめ込まれる第2電極群2と第3電極群3がベルト5か
ら着脱可能な構成にしたことを特徴とする。これ以外
は、第1実施例の体脂肪測定装置と略同様に構成され
る。また、第4実施例の体脂肪測定は、あらかじめ測定
者がはめ込み穴13,14の中から適当な穴を選択し、
自分のウエスト長に応じた最適位置に第2電極群2と第
3電極群3とをはめ込む以外は第1実施例と同様な方法
で行う。第2電極群2と第3電極群3がはめ込み穴1
3,14にはめ込まれると、各電極群がそれぞれ電気配
線を通して制御部8と電気的に接続される。The body fat measuring device according to the fourth embodiment shown in FIG. 6 is provided with a second electrode group fitting hole 13 and a third electrode group fitting hole 14 on the belt 5, and is fitted into the fitting holes 13 and 14. The second electrode group 2 and the third electrode group 3 are configured to be detachable from the belt 5. Other than this, the body fat measuring apparatus according to the first embodiment has substantially the same configuration. In addition, in the body fat measurement of the fourth embodiment, the measurer previously selects an appropriate hole from the fitting holes 13 and 14,
The same method as in the first embodiment is performed except that the second electrode group 2 and the third electrode group 3 are fitted in the optimum positions according to the waist length of the user. Second electrode group 2 and third electrode group 3 are fitted holes 1
When it is fitted into the electrodes 3 and 14, the respective electrode groups are electrically connected to the control section 8 through the electric wirings.
【0037】本実施例の体脂肪測定装置では、適当なは
め込み穴を選択し、そこに第2電極群2と第3電極群3
をはめ込むことにより各電極群間の距離を調節可能であ
り、測定者が自分のウエスト長に応じて電極群をベルト
5上の最適位置に設定することができる。第1電極群1
と第2電極群2との距離は、測定者のウェスト長の1/
3〜2/3とすることが好ましく、さらに、第1電極群
1と第3電極群3との距離及び第2電極群2と第3電極
群3との距離を等しくすることが好ましい。たとえば、
第1電極群1と第2電極群2との距離をウエスト長の1
/2とし、第1電極群1と第3電極群3の中間位置との
距離をウエスト長の1/4に設定することができる。こ
の電極群の位置設定の規則はすべての測定者に共通とす
ることが好ましい。また、はめ込み穴13,14の周辺
に目盛りをつけ、測定者がその目盛りに合わせて第2電
極群2と第3電極群3の位置を設定できる構成にするこ
とが好ましい。In the body fat measuring device of this embodiment, an appropriate fitting hole is selected, and the second electrode group 2 and the third electrode group 3 are placed therein.
The distance between the electrode groups can be adjusted by fitting the electrode group, and the measurer can set the electrode group to the optimum position on the belt 5 according to his / her waist length. First electrode group 1
And the distance between the second electrode group 2 and the second waist length of the measurer is 1 /
The distance between the first electrode group 1 and the third electrode group 3 and the distance between the second electrode group 2 and the third electrode group 3 are preferably equal. For example,
The distance between the first electrode group 1 and the second electrode group 2 is the waist length of 1
The distance between the first electrode group 1 and the intermediate position between the third electrode group 3 can be set to ¼ of the waist length. It is preferable that the rule for setting the position of the electrode group is common to all the measurers. Further, it is preferable that a scale be provided around the fitting holes 13 and 14 so that the measurer can set the positions of the second electrode group 2 and the third electrode group 3 according to the scale.
【0038】図7に示す第5実施例の体脂肪測定装置
は、へそ位置を基準にして人体の腹部表面上に配置する
一つの電極からなる第1電極群1と、人体の背中表面上
に配置する一つの電極からなる第2電極群2と、人体の
表面上で第1電極群1と第2電極群2との中間の位置に
配置する二つの電極からなる第3電極群3と、第1電極
群1を腹部表面上に配置する際の基準位置を示すへそ位
置マーカー4と、第1電極群1と第3電極群3とを接続
するアーム15と、第2電極群2と第3電極群3とを接
続するアーム16と、アーム15の長さを調節するため
のスライド式長さ可変部17と、アーム16の長さを調
節するためのスライド式長さ可変部18と、制御部8と
を備える。制御部8は、第1電極群1の電極と第2電極
群2の電極間に電流を流し、第3電極群3の二つの電極
間に発生する電圧を測定する測定手段と、測定された電
圧値に基づいて人体腹部の脂肪量を算出する算出手段と
を備える。The body fat measuring device of the fifth embodiment shown in FIG. 7 has a first electrode group 1 consisting of one electrode arranged on the surface of the abdomen of the human body based on the navel position, and a back surface of the human body. A second electrode group 2 composed of one electrode to be arranged, and a third electrode group 3 composed of two electrodes arranged at an intermediate position between the first electrode group 1 and the second electrode group 2 on the surface of the human body, A navel position marker 4 that indicates a reference position when the first electrode group 1 is placed on the abdominal surface, an arm 15 that connects the first electrode group 1 and the third electrode group 3, a second electrode group 2, and a second electrode group 2. An arm 16 for connecting the three-electrode group 3; a slide-type length varying part 17 for adjusting the length of the arm 15; and a slide-type length varying part 18 for adjusting the length of the arm 16. And a control unit 8. The control unit 8 supplies a current between the electrodes of the first electrode group 1 and the electrodes of the second electrode group 2 to measure the voltage generated between the two electrodes of the third electrode group 3, and the measured means. And a calculating unit that calculates the amount of fat in the abdomen of the human body based on the voltage value.
【0039】さらに、制御部8は、測定者の腹部外周長
(ウエスト長)や性別及び必要に応じて年齢などの身体
情報を入力するための入力装置や、入力された身体情報
及び算出した脂肪量を出力するための表示装置9を備え
てもよい。このときの算出手段は、測定された電圧値と
入力された測定者の腹部外周長や性別(及び必要に応じ
て年齢)を用いて人体腹部の脂肪量を算出する。また、
制御部8と第1電極群1、第2電極群2、第3電極群3
とは電気配線によって電気的に接続されている。この
際、配線(電気コード)は測定の邪魔にならないように
アーム15,16内部に埋め込むことができる。Further, the control unit 8 has an input device for inputting physical information such as the abdominal outer circumference (waist length) of the measurer, sex, and age as necessary, and the input physical information and calculated fat. A display device 9 for outputting the quantity may be provided. The calculating means at this time calculates the fat amount of the human abdomen using the measured voltage value and the input abdominal circumference and sex (and age as necessary) of the measurer. Also,
Control unit 8 and first electrode group 1, second electrode group 2, third electrode group 3
And are electrically connected to each other by electric wiring. At this time, the wiring (electrical cord) can be embedded inside the arms 15 and 16 so as not to interfere with the measurement.
【0040】次に、体脂肪測定方法を説明する。制御部
8を操作して測定者のウエスト長や性別(及び必要に応
じて年齢)などの身体情報を入力した後、図8に示すよ
うに、第1電極群1と第2電極群2がそれぞれ腹部と背
中に来るように測定装置を右脇腹から挿入し胴体に装着
する。次に、長さ可変部17、18を操作してアーム1
5,16の長さを調節し、第3電極群3を脇腹に密着さ
せる。へそ位置マーカー4がへそ位置に当たるようにし
ながら、第1電極群1と第2電極群2を肌に押しあて、
同時に、制御部8に設けられた測定開始ボタンを入力す
る。この入力により、測定手段が第1電極群1の電極と
第2電極群2の電極間に電流を流して第3電極群3の二
つの電極間に発生する電圧を測定し、算出手段が測定さ
れた電圧値と入力された身体情報等に基づいて測定者の
腹部の脂肪量を算出する。算出された脂肪量は表示装置
9に出力される。Next, the body fat measuring method will be described. After inputting physical information such as the waist length and sex (and age as required) of the measurer by operating the control unit 8, as shown in FIG. 8, the first electrode group 1 and the second electrode group 2 are The measuring device is inserted from the right flank so that it comes to the abdomen and back respectively, and it is attached to the body. Next, the length varying parts 17 and 18 are operated to operate the arm 1
The lengths of the electrodes 5 and 16 are adjusted to bring the third electrode group 3 into close contact with the flank. While making the navel position marker 4 hit the navel position, press the first electrode group 1 and the second electrode group 2 against the skin,
At the same time, the measurement start button provided in the control unit 8 is input. By this input, the measuring means measures the voltage generated between the two electrodes of the third electrode group 3 by passing a current between the electrodes of the first electrode group 1 and the electrodes of the second electrode group 2, and the calculating means measures the voltage. The fat amount in the abdomen of the measurer is calculated based on the input voltage value and the input physical information and the like. The calculated fat amount is output to the display device 9.
【0041】アーム15,16にはたとえばプラスチッ
ク(合成樹脂)、ゴム、木材、セラミック等でC字状に
形成した部材を用いることができる。長さ可変部17、
18によるアーム長の調節は、第1電極群1と第3電極
群3との距離と第2電極群2と第3電極群3との距離が
等しくなるように行うことが好ましい。また、長さ可変
部17、18の周辺に目盛りをつけ、測定者が自分のウ
エスト長をもとに測定前に事前に長さ可変部17、18
の調節を行えるようにすることもできる。また、第2電
極群2を支持している支持体とアーム16との接続部
を、アーム16に対して第2電極群2の支持体が回転可
能な構造とすることにより、第2電極群2の向きをフレ
キシブルにし、第2電極群2と肌との接触を良好にする
ことができる。第1電極群1(制御部8)とアーム15
との接続部も同様である。For the arms 15 and 16, members formed in a C shape from plastic (synthetic resin), rubber, wood, ceramics or the like can be used. Variable length section 17,
It is preferable that the arm length is adjusted by 18 so that the distance between the first electrode group 1 and the third electrode group 3 and the distance between the second electrode group 2 and the third electrode group 3 become equal. In addition, a scale is provided around the length varying portions 17, 18 so that the measurer can measure the waist varying lengths 17, 18 in advance based on his / her waist length before measurement.
It is also possible to allow adjustment of In addition, the connecting portion between the support body supporting the second electrode group 2 and the arm 16 has a structure in which the support body of the second electrode group 2 is rotatable with respect to the arm 16, so that the second electrode group The direction of 2 can be made flexible, and the contact between the second electrode group 2 and the skin can be improved. First electrode group 1 (control unit 8) and arm 15
The same applies to the connection part with.
【0042】算出する脂肪量は典型的には、人体腹部の
内臓脂肪量、特に第1〜第3電極群を配置した胴体断面
における内臓脂肪断面積である。また、内臓脂肪量の多
い人は概して総脂肪量(内臓脂肪量と皮下脂肪量の和)
も多いという相関があるため、本発明の測定装置によっ
て人体の総脂肪量を近似的に算出することもできる。The calculated fat mass is typically the visceral fat mass in the human abdomen, especially the visceral fat cross-sectional area in the body cross-section where the first to third electrode groups are arranged. In addition, people with large amounts of visceral fat generally have total fat content (sum of visceral fat and subcutaneous fat).
Since there is a large amount of correlation, the total fat content of the human body can be approximately calculated by the measuring device of the present invention.
【0043】測定時の姿勢や呼吸状態、電流源や電圧計
の特性、相関式の作成方法、第3電極群3の配置位置、
第3電極群3の中の二電極間の距離、電極の形状や材質
などに関する第1実施例での記載は第5実施例にもその
まま適用される。Posture and respiratory condition at the time of measurement, characteristics of current source and voltmeter, method of creating correlation equation, placement position of third electrode group 3,
The description in the first embodiment regarding the distance between the two electrodes in the third electrode group 3, the shape and the material of the electrodes, etc. is directly applied to the fifth embodiment.
【0044】図9に示す第6実施例の体脂肪測定装置
は、へそ位置を基準にして人体の腹部表面上に配置する
二つの電極からなる第1電極群19と、人体の背中表面
上に配置する二つの電極からなる第2電極群20と、人
体の表面上で第1電極群19と第2電極群20との中間
の位置に配置する二つの電極からなる第3電極群3と、
第1電極群19を腹部表面上に配置する際の基準位置を
示すへそ位置マーカー21と、第2電極群20を背中表
面上に配置する際の基準位置を示す背骨位置マーカー2
2と、制御部8と、制御部8と第1〜第3電極群とを電
気的に接続する配線コード23とを備える。The body fat measuring device according to the sixth embodiment shown in FIG. 9 has a first electrode group 19 composed of two electrodes arranged on the abdominal surface of the human body with reference to the navel position, and a back surface of the human body. A second electrode group 20 composed of two electrodes to be arranged, and a third electrode group 3 composed of two electrodes arranged at an intermediate position between the first electrode group 19 and the second electrode group 20 on the surface of the human body,
Navel position marker 21 indicating the reference position when arranging the first electrode group 19 on the abdominal surface, and spine position marker 2 indicating the reference position when arranging the second electrode group 20 on the back surface.
2, a control unit 8, and a wiring cord 23 that electrically connects the control unit 8 and the first to third electrode groups.
【0045】制御部8は、第1電極群19の中の二つの
電極から一つを選択し、第2電極群20の中の二つの電
極から一つを選択する選択手段と、第1電極群19の選
択された電極と第2電極群20の選択された電極間に電
流を流し、第3電極群3の二つの電極間に発生する電圧
を測定する測定手段と、測定された電圧値に基づいて人
体腹部の脂肪量を算出する算出手段とを備える。さらに
制御部8は、測定者の腹部外周長(ウエスト長)や性別
及び必要に応じて年齢などの身体情報を入力するための
入力装置や、入力された身体情報及び算出した脂肪量を
出力するための表示装置9を備えてもよい。このときの
算出手段は、測定された電圧値と入力された測定者の腹
部外周長や性別(及び必要に応じて年齢)を用いて人体
腹部の脂肪量を算出する。また、第1〜第3電極群は粘
着性物質又は吸盤によって人体表面に貼りつけ可能にな
っている。The control unit 8 selects one from the two electrodes in the first electrode group 19 and selects one from the two electrodes in the second electrode group 20, and the first electrode. Measuring means for measuring the voltage generated between the two electrodes of the third electrode group 3 by passing an electric current between the selected electrodes of the group 19 and the selected electrodes of the second electrode group 20, and the measured voltage value. And a calculating means for calculating the amount of fat in the abdomen of the human body. Further, the control unit 8 outputs an input device for inputting physical information such as the abdominal outer circumference length (waist length) of the measurer, sex, and age as necessary, and the input physical information and the calculated fat mass. The display device 9 may be provided. The calculating means at this time calculates the fat amount of the human abdomen using the measured voltage value and the input abdominal circumference and sex (and age as necessary) of the measurer. Further, the first to third electrode groups can be attached to the human body surface by an adhesive substance or a suction cup.
【0046】次に、体脂肪測定方法を説明する。測定者
はへそ位置マーカー21がへそ位置に来るようにして第
1電極群19を胴体24の腹部表面に貼りつけ、背骨位
置マーカー22が背骨位置に来るようにして第2電極群
20を胴体24の背中表面に貼りつけ、第3電極群3を
第1電極群19と第2電極群20の中間位置に貼りつけ
る。このとき、第2電極群20及び第3電極群3を貼り
つける高さ位置を第1電極群19の高さと同一にするこ
とが好ましく、たとえばレーザーポインタなどでレーザ
ー光を胴体表面に照射して貼りつけ高さを確認しながら
電極群3,20を貼りつけることもできる。貼り付けの
高さ位置はたとえばへそと同一高さを選ぶことができ
る。また、第1電極群19と第2電極群20の中間位置
に第3電極群3を貼り付ける際に、巻尺などで胴体24
に沿って測った第1電極群19と第2電極群20との間
の距離を計測し、その中間位置を定めてもよい。次に、
制御部8を操作して測定者のウエスト長や性別(及び必
要に応じて年齢)などの身体情報を入力し、その後、制
御部8に設けられた測定開始ボタンなどの入力を合図
に、選択手段が第1電極群19及び第2電極群20の中
の二つの電極からそれぞれ電極を一つずつ選択し、測定
手段が第1電極群19の選択された電極と第2電極群2
0の選択された電極間に電流を流して第3電極群3の二
つの電極間に発生する電圧を測定し、算出手段が測定さ
れた電圧値と入力された身体情報等に基づいて測定者の
腹部の脂肪量を算出する。算出された脂肪量は表示装置
9に出力される。Next, a method for measuring body fat will be described. The measurer attaches the first electrode group 19 to the surface of the abdomen of the body 24 with the navel position marker 21 at the navel position, and the second electrode group 20 with the spine position marker 22 at the spine position. Then, the third electrode group 3 is attached to an intermediate position between the first electrode group 19 and the second electrode group 20. At this time, it is preferable that the height position where the second electrode group 20 and the third electrode group 3 are attached to be the same as the height of the first electrode group 19, for example, by irradiating the body surface with laser light with a laser pointer or the like. The electrode groups 3 and 20 can be attached while confirming the attachment height. The height position of attachment can be selected to be the same height as the navel, for example. In addition, when the third electrode group 3 is attached to an intermediate position between the first electrode group 19 and the second electrode group 20, the body 24 is attached with a tape measure or the like.
The intermediate position may be determined by measuring the distance between the first electrode group 19 and the second electrode group 20 measured along. next,
Operate the control unit 8 to input the physical information such as the waist length and sex (and age if necessary) of the measurer, and then select the measurement start button or the like provided in the control unit 8 as a signal. The means selects one electrode from each of the two electrodes in the first electrode group 19 and the second electrode group 20, and the measuring means selects the selected electrode of the first electrode group 19 and the second electrode group 2.
A current is caused to flow between the selected electrodes of 0 to measure the voltage generated between the two electrodes of the third electrode group 3, and the calculating means calculates the voltage based on the measured voltage value and the inputted physical information. Calculate the abdominal fat mass. The calculated fat amount is output to the display device 9.
【0047】算出する脂肪量は典型的には、人体腹部の
内臓脂肪量、特に第1〜第3電極群を配置した胴体断面
における内臓脂肪断面積である。また、内臓脂肪量の多
い人は概して総脂肪量(内臓脂肪量と皮下脂肪量の和)
も多いという相関があるため、本発明の測定装置によっ
て人体の総脂肪量を近似的に算出することもできる。The calculated fat mass is typically the visceral fat mass in the human abdomen, especially the visceral fat cross-sectional area in the body cross-section where the first to third electrode groups are arranged. In addition, people with large amounts of visceral fat generally have total fat content (sum of visceral fat and subcutaneous fat).
Since there is a large amount of correlation, the total fat content of the human body can be approximately calculated by the measuring device of the present invention.
【0048】本測定装置によって測定者は自らの体脂肪
量を測るだけでなく、第三者(被験者)の体脂肪量を測
ってもよい。このとき、図9に示す胴体24は、体脂肪
量を測られる被験者の胴体を表す。With this measuring device, the measurer may not only measure his own body fat mass, but may also measure the body fat mass of a third party (subject). At this time, the body 24 shown in FIG. 9 represents the body of the subject whose body fat mass is measured.
【0049】本実施例の測定装置に用いられる電極群
3,19,20は粘着性物質又は吸盤からなる部分を有
し、胴体24表面に貼り付け可能な構造となっている。
たとえば、肌と接触する電極表面に粘着性の導電性ゲル
を塗布した構造や、電極表面に粘着性の導電性ゲルシー
トを貼り付けた構造、電極自身又はその周囲が吸盤状に
なった構造あるいは電極群を肌に接触させた後、粘着性
テープで上から貼り付け保持する構造が例としてあげら
れる。また、図9に示した測定装置のように、各電極群
中の二つの電極を、胴体面に沿って湾曲しうる薄いプラ
スチック板25によって連結支持した構成にしてもよ
い。プラスチック板25には伸縮性がほとんど無いた
め、電極間距離が一定に保たれ、且つプラスチック板2
5の可湾曲性により電極が胴体表面上に安定に貼り付け
られる。さらに、プラスチック板25を透明な材質とす
れば、プラスチック板25を通して胴体24表面を視認
できるので、電極群の貼り付けの際に、へそ位置マーカ
ー21や背骨位置マーカー22による位置合わせが容易
になる。また、各電極3,19,20と配線コード23
とは脱着可能な構造にしてもよい。各電極群を胴体表面
に貼り付ける際に、配線コード23を電極群からはずし
ておき、貼り付け後に配線コード23を接続するように
すれば、貼り付け時に配線コード23が邪魔にならず電
極群の貼り付け操作が容易になる。電極群と配線コード
23とを脱着可能にするためには両者間の接続をたとえ
ばクリップ(機械的な挟み込み)やマグネット(磁気的
な接着)などによって行えばよい。The electrode groups 3, 19, 20 used in the measuring apparatus of this embodiment have a portion made of an adhesive substance or a suction cup, and have a structure that can be attached to the surface of the body 24.
For example, a structure in which an adhesive conductive gel is applied to the electrode surface that comes into contact with the skin, a structure in which an adhesive conductive gel sheet is attached to the electrode surface, a structure in which the electrode itself or its surroundings are in a suction cup shape, or an electrode An example is a structure in which the group is brought into contact with the skin and then attached and held from above with an adhesive tape. Further, like the measuring device shown in FIG. 9, two electrodes in each electrode group may be connected and supported by a thin plastic plate 25 that can be curved along the body surface. Since the plastic plate 25 has almost no elasticity, the distance between the electrodes is kept constant, and the plastic plate 2
Due to the bendability of No. 5, the electrode is stably attached on the body surface. Furthermore, if the plastic plate 25 is made of a transparent material, the surface of the body 24 can be visually recognized through the plastic plate 25, so that the navel position marker 21 and the spine position marker 22 can be easily aligned when the electrode group is attached. . Also, each electrode 3, 19, 20 and the wiring cord 23
The structure may be removable. When each electrode group is attached to the body surface, the wiring cord 23 is removed from the electrode group, and the wiring cord 23 is connected after the attachment so that the wiring cord 23 does not get in the way when the electrode group is attached. The paste operation becomes easy. In order to make the electrode group and the wiring cord 23 detachable, the connection between them may be made by, for example, a clip (mechanical sandwiching) or a magnet (magnetic adhesion).
【0050】測定時の姿勢や呼吸状態、電流源や電圧計
の特性、相関式の作成方法、第3電極群の配置位置、第
3電極群の中の二電極間の距離、電極の形状や材質など
に関する第1実施例での記載は第6実施例にも適用され
る。Posture and respiratory condition at the time of measurement, characteristics of current source and voltmeter, method of creating correlation equation, placement position of third electrode group,
The description in the first embodiment regarding the distance between the two electrodes in the three-electrode group, the shape and material of the electrodes, and the like also applies to the sixth embodiment.
【0051】図9に示す測定装置のように、第1電極群
19及び第2電極群20の電極数を複数個にした場合に
は、どの電極を選択するかによって電流を複数方向に流
すことができる。これら複数方向に順次電流を流し、第
3電極群3の二つの電極間に発生する電圧を順次測定す
れば、複数個の測定電圧値を用いてより精度よく内臓脂
肪量を算出することもできる。算出の際に用いる、複数
個の測定電圧値(V1、V2、…Vp)と内臓脂肪量m
との相関式は、多変量解析手法を用いてたとえばm=a
0+(a1・V1+a2・V2+…+ap・Vp)Un
などとなる。ここで、a0、a1、…apは回帰係数、
Uは入力された被験者の腹部外周長である。また、nは
0又は正の実数の値をとるべき乗の指数であり、相関が
最も高くなるようにその値を決めることができる。典型
的には、量mが内臓脂肪の断面積などの絶対値を表す場
合、n=3となり、量mが腹部の全断面積に対する内臓
脂肪の断面積の比などの相対値を表す場合、n=1とな
る。このとき、算出の精度を向上させるため、測定者の
性別によって相関式を使い分けることもできる。When the number of electrodes of the first electrode group 19 and the second electrode group 20 is set to plural as in the measuring device shown in FIG. 9, the current is passed in plural directions depending on which electrode is selected. You can If the current is sequentially applied to these plural directions and the voltage generated between the two electrodes of the third electrode group 3 is sequentially measured, the visceral fat amount can be calculated more accurately using the plurality of measured voltage values. . A plurality of measured voltage values (V1, V2, ... Vp) and visceral fat mass m used in the calculation
The correlation equation with is, for example, m = a using a multivariate analysis method.
0+ (a1 · V1 + a2 · V2 + ... + ap · Vp) U n
And so on. Here, a0, a1, ... Ap are regression coefficients,
U is the input abdominal circumference of the subject. Further, n is an exponent of a power that takes a value of 0 or a positive real number, and the value can be determined so that the correlation becomes highest. Typically, when the amount m represents an absolute value such as the cross-sectional area of visceral fat, n = 3, and when the amount m represents a relative value such as the ratio of the cross-sectional area of visceral fat to the total cross-sectional area of the abdomen, n = 1. At this time, in order to improve the accuracy of the calculation, it is possible to use different correlation expressions depending on the sex of the measurer.
【0052】第1電極群19と第2電極群20とからそ
れぞれ一つずつ電極を選択して電流を流す電流路として
は、たとえば図10(a)及び図10(b)に示す流し
方が可能である。As a current path for selecting one electrode from each of the first electrode group 19 and the second electrode group 20 and flowing a current, for example, the flow paths shown in FIGS. 10A and 10B are used. It is possible.
【0053】《性別による相関の相違》図20は本発明
者の実験結果を示す特性図であり、この図は横軸に測定
電圧×(ウエスト)3、縦軸にX線CTで撮影した腹部
断層画像から算出した内臓脂肪面積を取り、男性の場合
(同図(A))、女性の場合(同図(B))についてそ
れぞれ測定したものである。黒丸の数が被検体数を示
す。実験には、図9に示す体脂肪測定装置を用い、10
0kHz、1mAの交流電流を図10(a)に示す電流
路で印加し、電圧Vを室温で測定した。<< Difference in Correlation According to Gender >> FIG. 20 is a characteristic diagram showing the results of experiments conducted by the present inventor. This figure shows the abdomen photographed by X-ray CT on the horizontal axis and measured voltage × (waist) 3 . The visceral fat area calculated from the tomographic image is taken and measured for a male case (FIG. (A)) and a female case (FIG. (B)). The number of black circles indicates the number of subjects. In the experiment, the body fat measuring device shown in FIG.
An alternating current of 0 kHz and 1 mA was applied in the current path shown in FIG. 10 (a), and the voltage V was measured at room temperature.
【0054】その結果、図20に示されるように、男性
と女性では明らかに相関に違いがあることが分かった。
従って、本発明の体脂肪測定装置において、男性用の相
関式と女性用の相関式をそれぞれ作成し、入力装置に入
力された測定者の性別の情報をもとに、使用する相関式
を選択することが好ましい。As a result, as shown in FIG. 20, it was found that there was a clear difference in correlation between males and females.
Therefore, in the body fat measurement device of the present invention, a correlation formula for men and a correlation formula for women are respectively created, and the correlation formula to be used is selected based on the sex information of the measurer input to the input device. Preferably.
【0055】《年齢を考慮した体脂肪(内臓脂肪量)の
算出》本発明の体脂肪測定装置において、相関式に被測
定体の年齢Zを加味することにより、内臓脂肪量の算出
精度(重相関係数R)がさらに改善する。<Calculation of Body Fat (Visceral Fat Amount) Considering Age> In the body fat measuring device of the present invention, the accuracy of calculation of visceral fat amount (weight The correlation coefficient R) is further improved.
【0056】図22はX線CTで測定した内臓脂肪量
(面積)と本発明の体脂肪測定装置により測定した内臓
脂肪量(面積)Sとの相関を示す実験結果である。実験
には、図9に示した体脂肪測定装置を用い、100kH
z、1mAの交流電流を図10(a)に示す電流路で印
加し、電圧を測定した。測定は室温で行い、男性を被測
定体とした。図22の横軸は、測定電圧Vとウエスト長
Uから構成した相関式S=a0+a1・V・U3を用い
て算出した内臓脂肪面積Sであり、このときの重相関係
数はR=0.856であった。FIG. 22 shows the experimental results showing the correlation between the visceral fat mass (area) measured by X-ray CT and the visceral fat mass (area) S measured by the body fat measuring device of the present invention. For the experiment, 100 kH was used using the body fat measurement device shown in FIG.
An alternating current of z and 1 mA was applied in the current path shown in FIG. 10 (a), and the voltage was measured. The measurement was performed at room temperature, and a male was used as the measurement subject. The horizontal axis of FIG. 22 is the visceral fat area S calculated using the correlation formula S = a0 + a1 · V · U 3 composed of the measured voltage V and the waist length U, and the multiple correlation coefficient at this time is R = 0. It was 0.856.
【0057】一方、図23は、横軸に測定電圧Vとウエ
スト長Uと年齢Zとから構成した相関式S=a0+a1
・V・U3+b・Zを用いて算出した内臓脂肪面積Sを
とり、X線CTで測定した内臓脂肪量面積との相関を示
したものである。このときの重相関係数はR=0.92
8であった。なお、a0、a1、bは回帰係数である。On the other hand, in FIG. 23, the correlation formula S = a0 + a1 composed of the measured voltage V, the waist length U and the age Z on the horizontal axis.
-The visceral fat area S calculated using V · U 3 + b · Z is taken and the correlation with the visceral fat mass area measured by X-ray CT is shown. The multiple correlation coefficient at this time is R = 0.92.
It was 8. In addition, a0, a1, and b are regression coefficients.
【0058】図22と図23を比較してわかるように、
被測定体の年齢を相関式に加味した図23の場合の方
が、重相関係数Rが“1”に近づき、内臓脂肪量の算出
精度が向上している。図21に示すように、実験で用い
た被測定体の年齢ZとX線CTで測定した内臓脂肪面積
とは、重相関係数R=0.0424程度の極めて弱い相
関しかなく、年齢Zを測定電圧Vやウエスト長Uと組み
合わせることによって相関が大きく向上することは予想
外であった。おそらく、内臓脂肪面積の推定において、
人体の電気インピーダンスの年齢依存性をうまく補正し
ているのではないかと推察される。As can be seen by comparing FIGS. 22 and 23,
In the case of FIG. 23 in which the age of the measured object is added to the correlation formula, the multiple correlation coefficient R approaches “1”, and the calculation accuracy of the visceral fat mass is improved. As shown in FIG. 21, the age Z of the measurement object used in the experiment and the visceral fat area measured by X-ray CT have only a very weak correlation with a multiple correlation coefficient R = 0.0424, and the age Z is It was unexpected that the correlation was significantly improved by combining with the measured voltage V and the waist length U. Probably in estimating the visceral fat area,
It is presumed that the age dependency of the human body's electrical impedance is well corrected.
【0059】このように、第1実施例〜第6実施例にお
いて、被測定体の年齢Zを入力装置から入力し、入力さ
れた年齢Zをも説明変数に加えることによって相関式の
精度を向上させることができる。その時の相関式は、回
帰係数bを用いてたとえば、m=a0+a1・V・Un
+b・Zやm=a0+a1・V・Un+a2・Un’+
b・Z、a0・m3+a1・m2+a2・m+a3=V
・Un+b・Zなどとすればよく、第6実施例において
は、m=a0+(a1・V1+a2・V2+…+ap・
Vp)Un+b・Zなどとしてもよい。As described above, in the first to sixth embodiments, the accuracy Z of the correlation equation is improved by inputting the age Z of the object to be measured from the input device and adding the input age Z to the explanatory variables. Can be made. Correlation equation at that time, using the regression coefficient b for example, m = a0 + a1 · V · U n
+ B ・ Z and m = a0 + a1 ・ V ・ U n + a2 ・ U n '+
b · Z, a0 · m 3 + a1 · m 2 + a2 · m + a3 = V
.U n + b.Z. In the sixth embodiment, m = a0 + (a1.V1 + a2.V2 + ... + ap.multidot.
Vp) U n + b · Z may be used.
【0060】図9に示す測定装置のように、第1電極群
19と第2電極群20が複数個の電極を有する場合に
は、電流印加用電極及び電圧測定用電極を適宜選択し
て、各種の電圧を測定し、体脂肪量の算出に利用するこ
とができる。たとえば、第1電極群19と第2電極群2
0とからそれぞれ一つずつ電極を選択して電流を流し、
第1電極群19の中の選択されなかった電極と第2電極
群20の中の選択されなかった電極との間の電圧V’を
測定することによって、腹部断面における総脂肪量m’
を求めることができる。総脂肪量としては該断面におけ
る皮下脂肪断面積と内臓脂肪断面積の和があげられる。
算出の際に用いる電圧値V’と総脂肪量m’との相関式
は、多変量解析手法を用いてたとえばm’=a0+a1
・V’・Unやm’=a0+a1・V’・Un+b・Z
などとなる。ここで、a0、a1、bは回帰係数、Uは
入力された被験者の腹部外周長、nは0又は正の実数の
値をとるべき乗の指数であり、相関が最も高くなるよう
にその値を決めることができる。When the first electrode group 19 and the second electrode group 20 have a plurality of electrodes as in the measuring apparatus shown in FIG. 9, the current applying electrode and the voltage measuring electrode are appropriately selected, Various voltages can be measured and used to calculate the amount of body fat. For example, the first electrode group 19 and the second electrode group 2
Select one electrode each from 0 and apply current,
By measuring the voltage V'between the non-selected electrodes in the first electrode group 19 and the non-selected electrodes in the second electrode group 20, the total fat mass m'in the abdominal section.
Can be asked. The total amount of fat includes the sum of the subcutaneous fat cross-sectional area and the visceral fat cross-sectional area in the cross section.
The correlation expression between the voltage value V ′ and the total fat mass m ′ used in the calculation is, for example, m ′ = a0 + a1 using a multivariate analysis method.
・ V '・ U n and m' = a0 + a1 ・ V '・ U n + b ・ Z
And so on. Where a0, a1 and b are regression coefficients, U is the abdominal circumference of the input subject, n is a power exponent taking a value of 0 or a positive real number, and the values are set so that the correlation becomes highest. I can decide.
【0061】(第2の実施の形態)第2の実施の形態の
体脂肪測定装置は、人体の表面近傍に層状に存在する皮
下脂肪の厚みや断面積などの皮下脂肪量及び、人体の内
部に存在する内臓脂肪の断面積などの内臓脂肪量を測定
する。(Second Embodiment) A body fat measuring apparatus according to a second embodiment is a body fat measuring apparatus such as the thickness and cross-sectional area of subcutaneous fat existing in layers near the surface of the human body and the inside of the human body. The amount of visceral fat, such as the cross-sectional area of visceral fat present in, is measured.
【0062】図11に示す第2の実施の形態の第1実施
例の体脂肪測定装置は、へそ位置を基準にして人体の腹
部表面上に配置する三つの電極からなる第1電極群2
8、人体の背中表面上に配置する三つの電極からなる第
2電極群29と、第1電極群28を腹部表面上に配置す
る際の基準位置を示すへそ位置マーカー30と、第2電
極群29を背中表面上に配置する際の基準位置を示す背
骨位置マーカー31と、第1電極群28と第2電極群2
9とを接続するコード32と、制御部8とを備える。制
御部8は、第2電極群29から選んだ二つの電極間に電
流を流し、第1電極群28から選んだ一つの電極と第2
電極群29から選んだ一つの電極間に発生する電圧を測
定する測定手段と、測定された電圧値に基づいて人体腹
部の脂肪量を算出する算出手段とを備える。さらに制御
部8は測定者の腹部外周長(ウェスト長)や性別及び必
要に応じて年齢などの身体情報を入力するための入力装
置や、入力された身体情報及び算出した脂肪量を出力す
るための表示装置9を備えてもよい。このときの算出手
段は、測定された電圧値と入力された測定者の腹部外周
長や性別(及び必要に応じて年齢)を用いて人体腹部の
脂肪量を算出する。また、制御部8と第1電極群28、
第2電極群29とは電気配線によって電気的に接続され
ている。この際、制御部8と第2電極群29とを結ぶ配
線(電気コード)はコード32内部に埋め込むことがで
きる。なお、コード32は、プラスチック(合成樹
脂)、ゴム、木材、セラミック等で形成したC字状のア
ームでもよい。The body fat measuring device of the first embodiment of the second embodiment shown in FIG. 11 is a first electrode group 2 composed of three electrodes arranged on the abdominal surface of the human body with reference to the navel position.
8. A second electrode group 29 composed of three electrodes arranged on the back surface of the human body, a navel position marker 30 indicating a reference position when the first electrode group 28 is arranged on the abdominal surface, and a second electrode group. Spine position marker 31 indicating the reference position when arranging 29 on the back surface, first electrode group 28 and second electrode group 2
The control unit 8 includes a cord 32 that connects the control unit 9 and the control unit 8. The control unit 8 causes a current to flow between the two electrodes selected from the second electrode group 29, and the one electrode and the second electrode selected from the first electrode group 28.
The measuring unit includes a measuring unit that measures the voltage generated between the electrodes selected from the electrode group 29, and a calculating unit that calculates the fat mass of the human abdomen based on the measured voltage value. Furthermore, the control unit 8 outputs an input device for inputting physical information such as the abdominal outer circumference (waist length) of the measurer, sex and age as necessary, and the input physical information and the calculated fat mass. The display device 9 may be provided. The calculating means at this time calculates the fat amount of the human abdomen using the measured voltage value and the input abdominal circumference and sex (and age as necessary) of the measurer. In addition, the control unit 8 and the first electrode group 28,
The second electrode group 29 is electrically connected by electric wiring. At this time, the wiring (electrical cord) connecting the control unit 8 and the second electrode group 29 can be embedded inside the cord 32. The cord 32 may be a C-shaped arm formed of plastic (synthetic resin), rubber, wood, ceramic, or the like.
【0063】次に、体脂肪測定方法を説明する。制御部
8を操作して測定者のウェスト長や性別(及び必要に応
じて年齢)などの身体情報を入力した後、へそ位置マー
カー30をへそ位置に合わせながら第1電極群28を片
手で腹部表面に押し当て、同時にもう片方の手で背骨位
置マーカー31を背骨位置に合わせながら第2電極群2
9を背中に押し当て、この状態を維持したまま、制御部
8に設けられた測定開始ボタンを入力する。この入力に
より、測定手段が第2電極群29から選んだ二つの電極
間に電流を流し、第1電極群28から選んだ一つの電極
と第2電極群29から選んだ一つの電極間に発生する電
圧V1を測定し、算出手段が測定された電圧値V1と入
力された身体情報等に基づいて測定者の腹部の脂肪量を
算出する。算出された脂肪量は表示装置9に出力され
る。へそ位置マーカー30及び背骨位置マーカー31を
目安にして電極群を胴体表面上に配置できるため、どの
ようなウェスト長の測定者に対しても、ほぼ同等の位置
に安定に電極を配置することができる。電圧V1を測定
する際の電流路の形成例を図12に示す。Next, a method for measuring body fat will be described. After operating the control unit 8 to input the physical information such as the waist length and sex (and age if necessary) of the measurer, the first electrode group 28 is abdomen with one hand while the navel position marker 30 is aligned with the navel position. The second electrode group 2 is pressed against the surface and at the same time, the spine position marker 31 is aligned with the spine position by the other hand.
9 is pressed against the back, and while keeping this state, the measurement start button provided in the control unit 8 is input. By this input, the measuring means causes a current to flow between the two electrodes selected from the second electrode group 29, and is generated between one electrode selected from the first electrode group 28 and one electrode selected from the second electrode group 29. The voltage V1 to be measured is measured, and the calculating means calculates the fat amount in the abdomen of the measurer based on the measured voltage value V1 and the input physical information and the like. The calculated fat amount is output to the display device 9. Since the electrode group can be arranged on the body surface by using the navel position marker 30 and the spine position marker 31 as a guide, it is possible to stably arrange the electrodes at substantially the same positions for persons having any waist length. it can. FIG. 12 shows an example of forming a current path when measuring the voltage V1.
【0064】本実施例の体脂肪測定装置では、第1、第
2電極群28,29を配置した胴体断面における皮下脂
肪の厚みや断面積などの皮下脂肪量及び該断面における
内臓脂肪断面積などの内臓脂肪量を測定することができ
る。In the body fat measuring device of this embodiment, the subcutaneous fat amount such as the thickness and the cross sectional area of the subcutaneous fat in the body cross section in which the first and second electrode groups 28 and 29 are arranged, and the visceral fat cross section in the cross section, etc. The visceral fat content of can be measured.
【0065】電流印加用の二つの電極を、背中面に当て
た第2電極群29の電極から選択するため、電流は背中
の皮下脂肪の周辺を主に流れ、したがって測定された電
圧値V1は背中面における皮下脂肪厚を反映する。それ
ゆえ、電圧値V1から、第2電極群29をあてた背中面
での平均皮下脂肪厚dを算出することができる。また、
電圧値V1から胴体断面における皮下脂肪断面積Sを近
似的に求めることができる。Since the two electrodes for applying the current are selected from the electrodes of the second electrode group 29 applied to the back surface, the current mainly flows around the subcutaneous fat on the back, so that the measured voltage value V1 is Reflects the subcutaneous fat thickness on the back surface. Therefore, the average subcutaneous fat thickness d on the back surface to which the second electrode group 29 is applied can be calculated from the voltage value V1. Also,
The subcutaneous fat cross-sectional area S in the body cross section can be approximately obtained from the voltage value V1.
【0066】皮下脂肪厚dや皮下脂肪断面積Sを算出す
るために、それらの量と電圧V1とを関係付ける相関式
を予め作成し、制御部8の中の算出手段に入力してお
く。具体的には、種々の皮下脂肪量をもつ被験者を複数
用意し、それらに対して上述の方法で測定した電圧値V
1と、実際の厚みdや断面積Sとの相関式を作成する。
電圧値V1の測定では、全ての被験者で流す電流を同一
にするか、あるいは、被験者毎に異なる電流を流し、得
られた電圧値を同一の電流量を流したときに発生する電
圧値に換算する。厚みdや断面積Sを測定する方法とし
ては、X線CT法やMRI法から得られた断層像から皮
下脂肪の厚みや断面積を求める方法がある。In order to calculate the subcutaneous fat thickness d and the subcutaneous fat cross-sectional area S, a correlation equation relating these amounts to the voltage V1 is created in advance and input to the calculating means in the control unit 8. Specifically, a plurality of subjects having various subcutaneous fat amounts are prepared, and the voltage value V measured by the above-mentioned method is applied to them.
A correlation equation between 1 and the actual thickness d or the cross-sectional area S is created.
In the measurement of the voltage value V1, all the subjects are made to have the same current, or different currents are made to flow for each subject, and the obtained voltage value is converted into a voltage value generated when the same amount of current is made to flow. To do. As a method of measuring the thickness d and the cross-sectional area S, there is a method of obtaining the thickness and cross-sectional area of subcutaneous fat from a tomographic image obtained by the X-ray CT method or the MRI method.
【0067】相関式は、多変量解析手法を用いてたとえ
ば線形多項式で近似して表せ、皮下脂肪厚みdに対して
は、回帰係数a0、a1及び入力された測定者の腹部外
周長Uを用いて、たとえばd=a0+a1・V1・Un
などと表せる。nは0又は正の実数の値をとるべき乗の
指数であり、相関が最も高くなるようにその値を決める
ことができる。典型的にはn=1となる。皮下脂肪断面
積Sに対しても同様に、たとえばS=a0+a1・V1
・Unという相関式を設定できる。量Sが皮下脂肪の断
面積(絶対値)を表す場合、典型的にはn=2となり、
量Sが腹部の全断面積に対する皮下脂肪の断面積の比
(相対値)を表す場合、n=0となる。説明変数の数を
増やして相関式の精度を向上することもできる。たとえ
ば、d=a0+a1・V1・Un+a2・Un’ やS
=a0+a1・V1・Un+a2・Un’ などが例示
される。ここでa2は回帰係数、n’は0又は正の実数
の値をとるべき乗の指数であり、相関が最も高くなるよ
うにその値を決めることができる。あるいは非線形な多
項式で相関式を作成し、算出の精度を向上させることも
できる。The correlation equation can be expressed by using, for example, a linear polynomial using a multivariate analysis method, and for the subcutaneous fat thickness d, the regression coefficients a0 and a1 and the input abdomen outer circumference U of the subject are used. Te, for example, d = a0 + a1 · V1 · U n
Can be expressed as n is an exponent of a power that takes a value of 0 or a positive real number, and the value can be determined so that the correlation is highest. Typically n = 1. Similarly, for the subcutaneous fat cross-sectional area S, for example, S = a0 + a1 · V1
-A correlation equation called U n can be set. If the amount S represents the cross-sectional area (absolute value) of subcutaneous fat, then typically n = 2,
When the amount S represents the ratio (relative value) of the cross-sectional area of subcutaneous fat to the total cross-sectional area of the abdomen, n = 0. The number of explanatory variables can be increased to improve the accuracy of the correlation equation. For example, d = a0 + a1 · V1 · U n + a2 · U n ' and S
= Like a0 + a1 · V1 · U n + a2 · U n ' is illustrated. Here, a2 is a regression coefficient, and n'is an exponent of exponentiation taking a value of 0 or a positive real number, and the value can be determined so that the correlation becomes highest. Alternatively, it is possible to improve the calculation accuracy by creating a correlation equation with a non-linear polynomial.
【0068】また、測定者の年齢を入力装置から入力
し、入力された年齢Zをも説明変数に加えることによっ
て相関式の精度を向上させることができる。その時の相
関係数は、回帰係数bを用いてたとえば、d=a0+a
1・V1・Un+b・Zやd=a0+a1・V1・Un
+a2・Un’+b・Z、S=a0+a1・V1・Un
+b・Z、S=a0+a1・V1・Un+a2・Un’
+b・Zなどとなる。The accuracy of the correlation equation can be improved by inputting the age of the measurer from the input device and adding the input age Z to the explanatory variable. The correlation coefficient at that time is, for example, d = a0 + a using the regression coefficient b.
1 · V1 · U n + b · Z and d = a0 + a1 · V1 · U n
+ A2 · U n '+ b · Z, S = a0 + a1 · V1 · U n
+ B · Z, S = a0 + a1 · V1 · U n + a2 · U n '
+ B · Z, etc.
【0069】さらに、算出の精度を向上させるため、測
定者の性別によって相関式を使い分けることもできる。
すなわち、男性用の相関式と女性用の相関式をそれぞれ
作成し、入力装置に入力された測定者の性別の情報をも
とに、使用する相関式を選択する。相関式が設定されれ
ば、皮下脂肪量の未知の測定者に対して測定された電圧
値V1から相関式に従って皮下脂肪の厚みdや断面積S
を算出できる。Furthermore, in order to improve the accuracy of calculation, it is possible to use different correlation expressions depending on the sex of the measurer.
That is, the correlation equation for men and the correlation equation for women are created, and the correlation equation to be used is selected based on the information of the sex of the measurer input to the input device. If the correlation equation is set, the thickness d and the cross-sectional area S of the subcutaneous fat are calculated according to the correlation equation from the voltage value V1 measured for a person who has unknown subcutaneous fat mass.
Can be calculated.
【0070】図11に示す体脂肪測定装置のように、第
1電極群28の電極数が3以上である場合、測定手段
が、電圧値V1に加え、第1電極群28から選んだ二つ
の電極間に電流を流し、第1電極群28から選んだ一つ
の電極と第2電極群29から選んだ一つの電極間に発生
する電圧値V2も測定するようにして、皮下脂肪断面積
Sの算出精度を向上させることもできる。このとき算出
手段には、回帰係数a2を追加したたとえばS=a0+
(a1・V1+a2・V2)・Un、あるいはこれに+
b・Zという年齢項を付加した形の相関式を作成して入
力しておく。電圧V2を測定する際の電流路の形成例を
図13に示す。When the number of electrodes of the first electrode group 28 is 3 or more as in the body fat measuring device shown in FIG. 11, the measuring means adds the voltage value V1 and the two selected from the first electrode group 28. The subcutaneous fat cross-sectional area S of the subcutaneous fat cross-sectional area S is measured by applying a current between the electrodes and measuring the voltage value V2 generated between one electrode selected from the first electrode group 28 and one electrode selected from the second electrode group 29. It is also possible to improve the calculation accuracy. At this time, a regression coefficient a2 is added to the calculation means, for example, S = a0 +
(A1 · V1 + a2 · V2) · Un , or +
Create and enter a correlation equation in the form of adding an age term of b · Z. FIG. 13 shows an example of forming a current path when measuring the voltage V2.
【0071】本実施例の体脂肪測定装置では、測定され
た電圧V1と入力された腹部外周長(ウェスト長)Uと
から第1、第2電極群28,29を配置した胴体断面に
おける内臓脂肪断面積などの内臓脂肪量を測定すること
もできる。電圧V1が皮下脂肪量を反映し、腹部外周長
が総脂肪量(内臓脂肪量と皮下脂肪量との和)を反映す
るため、両者の差をとることによって内臓脂肪量を導け
る。In the body fat measuring apparatus of this embodiment, the visceral fat in the body cross section in which the first and second electrode groups 28 and 29 are arranged is determined from the measured voltage V1 and the input abdominal outer circumference (waist length) U. Visceral fat mass such as cross-sectional area can also be measured. Since the voltage V1 reflects the subcutaneous fat amount and the abdominal outer peripheral length reflects the total fat amount (the sum of the visceral fat amount and the subcutaneous fat amount), the visceral fat amount can be derived by taking the difference between the two.
【0072】内臓脂肪量の定量的な算出のため、電圧V
1及び腹部外周長Uと内臓脂肪の量mとを関係付ける相
関式を予め作成し、制御部8の中の算出手段に入力して
おく。相関式の作成方法は第1の実施の形態の第1実施
例で記載した通りである。相関式は多変量解析方法を用
いてたとえば線形多項式で近似して表せ、回帰係数a
0、a1、a2及び入力された測定者の腹部外周長Uを
用いてたとえばm=a0+a1・Un’ −a2・V1
・Unなどとなる。n及びn’は0又は正の実数の値を
とるべき乗の指数であり、相関が最も高くなるようにそ
の値を決めることができる。典型的には、量mが内臓脂
肪の断面積などの絶対値を表す場合、n’=1〜2、n
=2となる。非線形な多項式で相関式を作成し、算出の
精度を向上させることもできる。To quantitatively calculate the amount of visceral fat, the voltage V
1 and a correlation equation relating the abdominal outer circumference length U and the visceral fat amount m are created in advance and input to the calculation means in the control unit 8. The method of creating the correlation equation is as described in the first example of the first embodiment. The correlation equation can be expressed by, for example, a linear polynomial approximation using a multivariate analysis method, and the regression coefficient a
0, a1, using abdominal circumferential length U of a2 and input measurer for example m = a0 + a1 · U n '-a2 · V1
・Un, etc. n and n ′ are exponents of powers of 0 or positive real numbers, and the values can be determined so that the correlation becomes highest. Typically, when the amount m represents an absolute value such as a cross-sectional area of visceral fat, n ′ = 1 to 2, n
= 2. It is also possible to improve the calculation accuracy by creating a correlation equation with a non-linear polynomial.
【0073】また、測定者の年齢Zを入力装置から入力
し、入力された年齢Zをも説明変数に加えることによっ
て相関式の精度を向上させることができる。その時の相
関式は、回帰係数bを用いてたとえば、m=a0+a1
・Un’−a2・V1・Un+b・Zなどとなる。ま
た、算出の精度を向上させるため、測定者の性別によっ
て相関式を使い分けることもできる。すなわち、男性用
の相関式と女性用の相関式をそれぞれ作成し、入力装置
に入力された測定者の性別の情報をもとに、使用する相
関式を選択する。Further, the accuracy of the correlation equation can be improved by inputting the age Z of the measurer from the input device and adding the input age Z to the explanatory variables. The correlation equation at that time is, for example, m = a0 + a1 using the regression coefficient b.
· U n 'and so on -a2 · V1 · U n + b · Z. Further, in order to improve the accuracy of calculation, it is possible to properly use the correlation equation depending on the sex of the measurer. That is, the correlation equation for men and the correlation equation for women are created, and the correlation equation to be used is selected based on the information of the sex of the measurer input to the input device.
【0074】相関式が設定されれば、内臓脂肪量の未知
の測定者に対して測定された電圧値V1と腹部外周長U
とから相関式に従って内臓脂肪量mを算出できる。When the correlation equation is set, the voltage value V1 and the abdominal outer circumference U measured for a person who has an unknown visceral fat mass.
From, the visceral fat mass m can be calculated according to the correlation equation.
【0075】図11に示す体脂肪測定装置のように第1
電極群28の電極数が3以上である場合、測定手段が、
電圧値V1に加え、前述の電圧V2をも測定するように
して、内臓脂肪断面積mの算出精度を向上させることも
できる。このとき算出手段には、回帰係数a3を追加し
たたとえばm=a0+a1・Un’ −(a2・V1+
a3・V2)・Unやm=a0+a1・Un’ −(a
2・V1+a3・V2)・Un+b・Zという形の相関
式を作成して入力しておく。As in the body fat measuring device shown in FIG.
When the number of electrodes of the electrode group 28 is 3 or more, the measuring means
It is also possible to improve the calculation accuracy of the visceral fat cross-sectional area m by measuring the above-mentioned voltage V2 in addition to the voltage value V1. The calculation means at this time, add a regression coefficient a3 example m = a0 + a1 · U n '- (a2 · V1 +
a3 · V2) · U n and m = a0 + a1 · U n '- (a
2 · V1 + a3 · V2) · U n + b · Z to create a correlation equation of the form previously entered.
【0076】図11に示す体脂肪測定装置のように第1
電極群28の電極数が2以上である場合、測定手段が、
第1電極群28と第2電極群29とから一つずつ選択し
た電極間に電流を流し、第1電極群28の中の選択され
なかった電極と第2電極群29の中の選択されなかった
電極間に発生する電圧V3をも測定するようにして、内
臓脂肪断面積mの算出精度を向上させることもできる。
電圧V3を測定する際の電流路の形成例を図14に示
す。このとき算出手段には、たとえばm=a0+a1・
Un’ +(a2・V3−a3・V1)・Unあるいは
m=a0+a1・Un’ +(a2・V3−a3・V1
−a4・V2)・Unあるいはこれらに+b・Zという
年齢項を付加した形の相関式を作成して入力しておく。
電圧V3は腹部外周長Uと同様に総脂肪量を反映してい
るため、上記相関式の中でa1・U n’の項を省略して
もよい。As in the body fat measuring device shown in FIG.
When the number of electrodes of the electrode group 28 is 2 or more, the measuring means
Select one from each of the first electrode group 28 and the second electrode group 29.
Current is applied between the selected electrodes, and selected in the first electrode group 28.
No electrode and not selected in the second electrode group 29
The voltage V3 generated between the electrodes is also measured so that
It is also possible to improve the calculation accuracy of the visceral fat cross-sectional area m.
FIG. 14 shows an example of forming a current path when measuring the voltage V3.
You At this time, for example, m = a0 + a1 ·
Un‘+ (A2 ・ V3-a3 ・ V1) ・ UnOr
m = a0 + a1 · Un‘+ (A2 ・ V3-a3 ・ V1
-A4 / V2) / UnOr these are called + b · Z
Create and enter a correlation equation with the age term added.
The voltage V3 reflects the total amount of fat as well as the abdominal circumference U.
Therefore, in the above correlation equation, a1 · U nOmitting the term '
Good.
【0077】第2電極群29の中の各電極間の距離は最
適な範囲に設定することが好ましい。電流印加用の二つ
の電極間の距離は、測定者の腹部外周長の1/6未満で
あることが好ましく、1/8以下であることがさらに好
ましい。電極間の距離が大きすぎると、多くの電流が人
体内部にも流れ込み、測定電圧値V1に胴体内部にある
筋肉や内臓脂肪の分布や量の影響が現れる。電極間の距
離が小さすぎると、皮下脂肪の厚みが厚いときに測定感
度が悪くなり、しかも電極の形状やサイズの影響が測定
電圧値V1に現れて好ましくない。電流印加用電極と電
圧測定用電極との距離はおおむね被験者の皮下脂肪厚み
の0.5〜3倍にするのが好ましい。電極間の距離があ
まり大きいと、皮下脂肪での電圧降下が測定電圧V1に
占める割合が少なくなり、測定精度が悪くなる。また、
皮下脂肪の厚みが薄い被験者に対して測定感度が悪くな
る。距離があまり小さいと、皮下脂肪の厚みが厚い被験
者に対して測定感度が悪くなり、また電極の形状やサイ
ズあるいは電極と人体との間の接触状態が測定電圧値V
1に影響して好ましくない。例えば、ウェスト長が60
〜90cmで皮下脂肪厚みが1〜4cmの被験者を測定
する場合、電流印加用電極間の距離(電極の中心間距
離)を1〜15cmにするのが好ましく、2〜10cm
にするのがさらに好ましい。また、電流印加用電極と電
圧測定用電極との距離(電極の中心間距離)は0.6〜
10cmにするのが好ましく、1〜6cmにするのがさ
らに好ましい。第1電極群28の中の各電極間の距離も
同様である。The distance between each electrode in the second electrode group 29 is preferably set in an optimum range. The distance between the two electrodes for applying a current is preferably less than ⅙ of the outer circumference of the abdomen of the measurer, and more preferably ⅛ or less. If the distance between the electrodes is too large, a large amount of current also flows into the human body, and the measured voltage value V1 is affected by the distribution and amount of muscles and visceral fat inside the body. If the distance between the electrodes is too small, the measurement sensitivity becomes poor when the thickness of the subcutaneous fat is large, and moreover the influence of the shape and size of the electrodes appears in the measured voltage value V1, which is not preferable. The distance between the current application electrode and the voltage measurement electrode is preferably about 0.5 to 3 times the subcutaneous fat thickness of the subject. If the distance between the electrodes is too large, the ratio of the voltage drop in the subcutaneous fat to the measurement voltage V1 decreases, and the measurement accuracy deteriorates. Also,
The measurement sensitivity deteriorates for subjects with thin subcutaneous fat. If the distance is too small, the measurement sensitivity will be poor for subjects with thick subcutaneous fat, and the shape and size of the electrodes or the contact state between the electrodes and the human body will be the measured voltage value V.
It is not preferable because it affects 1. For example, waist length is 60
When measuring a subject having a subcutaneous fat thickness of ~ 90 cm and a subcutaneous fat thickness of 1 to 4 cm, it is preferable to set the distance between the electrodes for current application (the distance between the centers of the electrodes) to 1 to 15 cm, 2 to 10 cm.
Is more preferable. The distance between the current application electrode and the voltage measurement electrode (distance between the centers of the electrodes) is 0.6 to
The length is preferably 10 cm, more preferably 1 to 6 cm. The same applies to the distance between the electrodes in the first electrode group 28.
【0078】測定時の姿勢や呼吸状態、電流源や電圧計
の特性、電極の形状や材質などについては第1の実施の
形態の第1実施例の記載が本実施例にも適用される。Regarding the posture and breathing state at the time of measurement, the characteristics of the current source and the voltmeter, the shape and material of the electrodes, etc., the description of the first example of the first embodiment is also applied to this example.
【0079】図15に示す第2実施例の体脂肪測定装置
は、へそ位置を基準にして人体の腹部表面上に配置する
三つの電極からなる第1電極群28と、人体の背中表面
上に配置する三つの電極からなる第2電極群29と、第
1電極群28を腹部表面上に配置する際の基準位置を示
すへそ位置マーカー30と、第2電極群29を背中表面
上に配置する際の基準位置を示す背骨位置マーカー31
と、制御部8と、第1電極群28及び第2電極群29と
制御部8とを電気的に接続する配線コード23とを備え
る。制御部8は、第2電極群29から選んだ二つの電極
間に電流を流し、第1電極群28から選んだ一つの電極
と第2電極群29から選んだ一つの電極間に発生する電
圧を測定する測定手段と、測定された電圧値に基づいて
人体腹部の脂肪量を算出する算出手段とを備える。さら
に制御部8は、測定者の腹部外周長(ウェスト長)や性
別及び必要に応じて年齢などの身体情報を入力するため
の入力装置や、入力された身体情報及び算出した脂肪量
を出力するための表示装置9を備えてもよい。このとき
の算出手段は、測定された電圧値と入力された測定者の
腹部外周長や性別(及び必要に応じて年齢)を用いて人
体腹部の脂肪量を算出する。また、第1、第2電極群2
8,29は粘着性物質又は吸盤によって人体表面に貼り
付け可能になっている。The body fat measuring apparatus according to the second embodiment shown in FIG. 15 includes a first electrode group 28 composed of three electrodes arranged on the surface of the abdomen of the human body on the basis of the navel position, and a back surface of the human body. A second electrode group 29 including three electrodes to be arranged, a navel position marker 30 indicating a reference position when the first electrode group 28 is arranged on the abdominal surface, and a second electrode group 29 are arranged on the back surface. Spine position marker 31 indicating the reference position in case of
And a wiring cord 23 that electrically connects the control unit 8, the first electrode group 28, the second electrode group 29, and the control unit 8. The control unit 8 causes a current to flow between two electrodes selected from the second electrode group 29, and a voltage generated between one electrode selected from the first electrode group 28 and one electrode selected from the second electrode group 29. And a calculating means for calculating the fat mass in the human abdomen based on the measured voltage value. Further, the control unit 8 outputs an input device for inputting physical information such as the abdominal outer circumference (waist length) of the measurer, sex and age as necessary, and the input physical information and the calculated fat mass. The display device 9 may be provided. The calculating means at this time calculates the fat amount of the human abdomen using the measured voltage value and the input abdominal circumference and sex (and age as necessary) of the measurer. Also, the first and second electrode groups 2
8, 29 can be attached to the human body surface by an adhesive substance or a suction cup.
【0080】次に、体脂肪測定方法を説明する。測定者
はへそ位置マーカー30がへそ位置に来るようにして第
1電極群28を胴体24の腹部表面に貼り付け、背骨位
置マーカー31が背骨位置に来るようにして第2電極群
29を胴体24の背中表面に貼り付ける。このとき、第
2電極群29を貼り付ける高さ位置を第1電極群28の
高さと同一にすることが好ましく、たとえばレーザーポ
インタなどでレーザー光を胴体表面に照射して貼り付け
高さを確認しながら電極群を貼り付けることもできる。
貼り付けの高さ位置はたとえばへそと同一高さを選ぶこ
とができる。次に、制御部8を操作して測定者のウェス
ト長や性別(及び必要に応じて年齢)などの身体情報を
入力し、その後、制御部8に設けられた測定開始ボタン
などの入力を合図に、測定手段が第2電極群29から選
んだ二つの電極間に電流を流し、第1電極群28から選
んだ一つの電極と第2電極群29から選んだ一つの電極
間に発生する電圧を測定し、算出手段が測定された電圧
値と入力された身体情報等に基づいて測定者の腹部の脂
肪量を算出する。算出された脂肪量は表示装置9に出力
される。Next, the body fat measuring method will be described. The measurer attaches the first electrode group 28 to the abdominal surface of the body 24 with the navel position marker 30 at the navel position, and the second electrode group 29 with the spine position marker 31 at the spine position. Stick it on the back surface of. At this time, it is preferable that the height position where the second electrode group 29 is attached is the same as the height of the first electrode group 28. For example, laser light is applied to the body surface with a laser pointer or the like to confirm the attachment height. However, the electrode group can be attached.
The height position of attachment can be selected to be the same height as the navel, for example. Next, the control unit 8 is operated to input the physical information such as the waist length and sex (and age if necessary) of the measurer, and then the measurement start button or the like provided in the control unit 8 is signaled. In addition, the measuring means applies a current between two electrodes selected from the second electrode group 29, and a voltage generated between one electrode selected from the first electrode group 28 and one electrode selected from the second electrode group 29. Is calculated, and the calculating means calculates the amount of fat in the abdomen of the measurer based on the measured voltage value, the input physical information and the like. The calculated fat amount is output to the display device 9.
【0081】本測定装置によって測定者は自らの体脂肪
量を測るだけでなく、第三者(被験者)の体脂肪量を測
ってもよい。このとき、図15に示す胴体24は、体脂
肪量を測られる被験者の胴体を表す。With this measuring device, the measurer may not only measure his own body fat mass, but may also measure the body fat mass of a third party (subject). At this time, the body 24 shown in FIG. 15 represents the body of the subject whose body fat mass is measured.
【0082】体脂肪測定装置によって測定しうる体脂肪
量及びその測定原理、相関式の作成方法、各電極群の中
の電極間の距離などに関する第2の実施の形態の第1実
施例での記載は本実施例にもそのまま適用される。な
お、第1実施例に記載の電圧V1、V2、V3を測定す
る際の本実施例での電極路の形成例をそれぞれ図16、
図17、図18に示す。また、粘着性物質又は吸盤から
なる部分を有する電極群の構成に関する第1の実施の形
態の第6実施例での記載は本実施例にもほぼそのまま適
用される。測定時の姿勢や呼吸状態、電流源や電圧計の
特性、電極の形状や材質などについては第1の実施の形
態の第1実施例で記載した通りである。The first example of the second embodiment relating to the amount of body fat that can be measured by the body fat measurement device and its measurement principle, the method of creating the correlation formula, the distance between the electrodes in each electrode group, etc. The description is applied to this embodiment as it is. It should be noted that an example of forming the electrode paths in this embodiment when measuring the voltages V1, V2, and V3 described in the first embodiment is shown in FIG.
It shows in FIG. 17, FIG. The description in the sixth example of the first embodiment regarding the configuration of the electrode group having the portion made of the adhesive substance or the suction cup is also applied to this example almost as it is. The posture and breathing state at the time of measurement, the characteristics of the current source and the voltmeter, the shape and material of the electrodes, etc. are as described in the first example of the first embodiment.
【0083】本発明は、第1の実施の形態の体脂肪測定
装置と第2の実施の形態の体脂肪測定装置とを組み合わ
せた装置としても実現できる。図19に、第1の実施の
形態の第6実施例と第2の実施の形態の第2実施例とを
組み合わせた体脂肪測定装置の一例を示す。The present invention can also be realized as a device in which the body fat measuring device according to the first embodiment and the body fat measuring device according to the second embodiment are combined. FIG. 19 shows an example of a body fat measurement device in which the sixth example of the first embodiment and the second example of the second embodiment are combined.
【0084】本測定装置において制御部8の中の測定手
段は、第1電極群28の中の三つの電極から選択した一
つの電極と第2電極群29の中の三つの電極から選択し
た一つの電極間に電流を流し、第3電極群3の二つの電
極間に発生する電圧Vを測定するとともに、第2電極群
29から選んだ二つの電極間に電流を流し、第1電極群
28から選んだ一つの電極と第2電極群29から選んだ
一つの電極間に発生する電圧V1を測定する。制御部8
の中の算出手段は、電圧値Vから第1の実施の形態に記
載の方法にしたがって内臓脂肪量を算出するとともに、
電圧値V1から第2の実施の形態に記載の方法にしたが
って内臓脂肪量を算出する。そして、これら二つの方法
で算出された内臓脂肪量がそれぞれ表示装置9に出力さ
れる。In the present measuring apparatus, the measuring means in the control unit 8 is one electrode selected from the three electrodes in the first electrode group 28 and one electrode selected from the three electrodes in the second electrode group 29. A current is passed between the two electrodes, the voltage V generated between the two electrodes of the third electrode group 3 is measured, and a current is passed between the two electrodes selected from the second electrode group 29. The voltage V1 generated between one electrode selected from the above and one electrode selected from the second electrode group 29 is measured. Control unit 8
In addition to calculating the visceral fat amount from the voltage value V according to the method described in the first embodiment,
The visceral fat amount is calculated from the voltage value V1 according to the method described in the second embodiment. Then, the visceral fat amount calculated by these two methods is output to the display device 9, respectively.
【0085】このように二通りの測定方法で算出された
内臓脂肪量の値を比較することによって算出値の信頼性
を向上できる。万一、二つの算出値が大きく異なった場
合には、再測定を促す指示表示を表示装置に行ってもよ
い。By thus comparing the values of the visceral fat mass calculated by the two measurement methods, the reliability of the calculated value can be improved. In the unlikely event that the two calculated values greatly differ, an instruction display prompting re-measurement may be displayed on the display device.
【0086】また、本発明において、複数の周波数の電
流で測定を行って、それらの測定結果を比較することに
より、測定結果の信頼性を高めることもできる。Further, in the present invention, the reliability of the measurement result can be improved by measuring the currents at a plurality of frequencies and comparing the measurement results.
【0087】第1の実施の形態及び第2の実施の形態の
体脂肪測定装置において、人体の電気インピーダンスが
日内変動することを考慮に入れ、体脂肪を測定した時刻
を用いて測定電圧を補正し、電気インピーダンスの日内
変動に起因する体脂肪量の測定誤差を補正してもよい。
あるいは、食事の前後で腹部の状態が変わることを考慮
に入れ、食事から体脂肪を測定するまでの経過時間を用
いて測定電圧を補正し、食事に起因する体脂肪量の測定
誤差を補正することもできる。また、ある標準的な電圧
範囲を算出手段に入力しておき、測定電圧値が電極と肌
との接触不良等の原因でその電圧範囲からはずれた時に
エラー表示を表示装置9に表示することもできる。In the body fat measuring devices according to the first and second embodiments, the measurement voltage is corrected using the time when the body fat is measured, taking into consideration that the electrical impedance of the human body fluctuates during the day. However, the measurement error of the body fat mass due to the diurnal variation of the electrical impedance may be corrected.
Alternatively, taking into consideration that the condition of the abdomen changes before and after meals, the measurement voltage is corrected using the elapsed time from the meal to the measurement of body fat, and the measurement error of the body fat amount due to the meal is corrected. You can also It is also possible to input a certain standard voltage range into the calculating means and display an error display on the display device 9 when the measured voltage value deviates from the voltage range due to a contact failure between the electrode and the skin. it can.
【0088】測定された内臓脂肪断面積や皮下脂肪断面
積などの体脂肪量を表示する際、cm2単位で面積の絶
対値を表示することもできるし、面積値に適当な係数を
乗じた規格値で表示することもできる。面積値をcm2
単位で表示する場合の刻み幅としては、1cm2刻み、
2cm2刻み、5cm2刻み、10cm2刻み、20c
m2刻みなどが例示される。10cm2刻み、20cm
2刻みなどのように刻み幅が大きい場合は、面積の絶対
値以外に、減量の効果を敏感に検出できるような刻み幅
の小さい規格値あるいは測定電圧値自身を同時に表示し
てもよい。また、測定された体脂肪量の値を、従来の体
脂肪計の表示に使われている体脂肪率と相関させること
もでき、表示装置に体脂肪率を表示することもできる。
また、内臓脂肪が高脂血症、糖尿病、高血圧などの生活
習慣病の源泉になっているという医学的見地から、測定
された内臓脂肪量に基づき、表示装置に健康アドバイス
を表示することができる。When displaying the measured body fat mass such as the visceral fat cross-sectional area and the subcutaneous fat cross-sectional area, the absolute value of the area can be displayed in cm 2 , or the area value is multiplied by an appropriate coefficient. It can also be displayed as a standard value. Area value is cm 2
When displaying in units, the step size is 1 cm 2
2 cm 2 steps, 5 cm 2 steps, 10 cm 2 steps, 20 c
Examples are m 2 increments and the like. 10 cm 2 steps, 20 cm
When the step size is large, such as in two steps, the standard value or the measured voltage value with a small step size that allows the weight reduction effect to be sensitively detected may be simultaneously displayed in addition to the absolute value of the area. Further, the value of the measured body fat amount can be correlated with the body fat percentage used in the display of the conventional body fat meter, and the body fat percentage can be displayed on the display device.
In addition, from the medical viewpoint that visceral fat is a source of lifestyle-related diseases such as hyperlipidemia, diabetes, and hypertension, health advice can be displayed on the display device based on the measured amount of visceral fat. .
【0089】[0089]
【発明の効果】以上説明したように、本発明によれば、
簡便且つ高精度に、被測定体の表面近傍に層状に存在す
る皮下脂肪の厚み、断面積等の皮下脂肪量や被測定体の
内部に存在する内臓脂肪量を測定でき、しかも容易に装
着可能な体脂肪測定装置を提供することができる。As described above, according to the present invention,
You can easily and accurately measure the thickness of subcutaneous fat existing in layers near the surface of the object to be measured, the amount of subcutaneous fat such as the cross-sectional area, and the amount of visceral fat present inside the object to be measured, and it can be easily mounted. A different body fat measuring device can be provided.
【図1】第1の実施の形態の体脂肪測定装置の第1実施
例を示す構成図。FIG. 1 is a configuration diagram showing a first example of a body fat measurement device according to a first embodiment.
【図2】ベルト式の体脂肪測定装置を腹部に巻き付けた
状態を示す図。FIG. 2 is a view showing a state where a belt type body fat measuring device is wrapped around an abdomen.
【図3】制御部とベルトとを配線コードで接続して構成
した体脂肪測定装置の構成図。FIG. 3 is a configuration diagram of a body fat measurement device configured by connecting a control unit and a belt with a wiring cord.
【図4】第1の実施の形態の体脂肪測定装置の第2実施
例を示す構成図。FIG. 4 is a configuration diagram showing a second example of the body fat measurement device according to the first embodiment.
【図5】第1の実施の形態の体脂肪測定装置の第3実施
例を示す構成図。FIG. 5 is a configuration diagram showing a third example of the body fat measurement device according to the first embodiment.
【図6】第1の実施の形態の体脂肪測定装置の第4実施
例を示す構成図。FIG. 6 is a configuration diagram showing a fourth example of the body fat measurement device according to the first embodiment.
【図7】第1の実施の形態の体脂肪測定装置の第5実施
例を示す構成図。FIG. 7 is a configuration diagram showing a fifth example of the body fat measurement device according to the first embodiment.
【図8】アーム式の体脂肪測定装置を胴体へ装着した状
態を示す図。FIG. 8 is a diagram showing a state in which an arm-type body fat measuring device is attached to a body.
【図9】第1の実施の形態の体脂肪測定装置の第6実施
例を示す構成図。FIG. 9 is a configuration diagram showing a sixth example of the body fat measurement device according to the first embodiment.
【図10】第1電極群と第2電極群とからそれぞれ一つ
ずつ電極を選択して電流を流す電流路の例を示す図。FIG. 10 is a diagram showing an example of a current path in which a current is supplied by selecting one electrode from each of a first electrode group and a second electrode group.
【図11】第2の実施の形態の体脂肪測定装置の第1実
施例を示す構成図。FIG. 11 is a configuration diagram showing a first example of the body fat measurement device according to the second embodiment.
【図12】第2の実施の形態の第1実施例の体脂肪測定
装置で電圧を測定する際の電流路の形成例を示す図。FIG. 12 is a diagram showing an example of forming a current path when measuring a voltage with the body fat measurement device according to the first example of the second embodiment.
【図13】第2の実施の形態の第1実施例の体脂肪測定
装置で電圧を測定する際の電流路の他の形成例を示す
図。FIG. 13 is a diagram showing another example of forming a current path when measuring a voltage with the body fat measurement device according to the first example of the second embodiment.
【図14】第2の実施の形態の第1実施例の体脂肪測定
装置で電圧を測定する際の電流路の他の形成例を示す
図。FIG. 14 is a diagram showing another example of forming a current path when measuring a voltage with the body fat measurement device according to the first example of the second embodiment.
【図15】第2の実施の形態の体脂肪測定装置の第2実
施例を示す構成図。FIG. 15 is a configuration diagram showing a second example of the body fat measurement device according to the second embodiment.
【図16】第2の実施の形態の第2実施例の体脂肪測定
装置で電圧を測定する際の電流路の形成例を示す図。FIG. 16 is a diagram showing an example of forming a current path when measuring a voltage with the body fat measurement device according to the second example of the second embodiment.
【図17】第2の実施の形態の第2実施例の体脂肪測定
装置で電圧を測定する際の電流路の他の形成例を示す
図。FIG. 17 is a diagram showing another example of forming a current path when a voltage is measured by the body fat measurement device according to the second example of the second embodiment.
【図18】第2の実施の形態の第2実施例の体脂肪測定
装置で電圧を測定する際の電流路の他の形成例を示す
図。FIG. 18 is a diagram showing another example of forming a current path when a voltage is measured by the body fat measurement device according to the second example of the second embodiment.
【図19】第1の実施の形態の第6実施例と第2の実施
の形態の第2実施例とを組み合わせた体脂肪測定装置の
一例を示す図。FIG. 19 is a diagram showing an example of a body fat measurement device in which a sixth example of the first embodiment and a second example of the second embodiment are combined.
【図20】X線CTで測定した内臓脂肪量(面積)と第
1の実施の形態の第6実施例の体脂肪測定装置による測
定値との関係を示す本発明者による実験結果を示す説明
図であり、(A)は男性、(B)は女性を示す。FIG. 20 is an explanation showing an experimental result by the present inventor showing the relationship between the visceral fat amount (area) measured by X-ray CT and the measurement value by the body fat measurement device according to the sixth example of the first embodiment. It is a figure, (A) shows a man and (B) shows a woman.
【図21】年齢と、X線CTで測定した内臓脂肪量(面
積)との関係を示す本発明者の実験結果を示す説明図で
ある。FIG. 21 is an explanatory diagram showing experimental results of the present inventor showing the relationship between age and visceral fat mass (area) measured by X-ray CT.
【図22】X線CTで測定した内臓脂肪量(面積)と年
齢を考慮しない相関式で算出した内臓脂肪面積測定値と
の関係を示す本発明者による実験結果を示す説明図であ
る。FIG. 22 is an explanatory diagram showing an experimental result by the present inventor showing the relationship between the visceral fat mass (area) measured by X-ray CT and the visceral fat area measurement value calculated by a correlation formula without considering age.
【図23】X線CTで測定した内臓脂肪量(面積)と年
齢を考慮した相関式で算出した内臓脂肪面積測定値との
関係を示す本発明者による実験結果を示す説明図であ
る。FIG. 23 is an explanatory diagram showing an experimental result by the present inventor showing a relationship between a visceral fat amount (area) measured by X-ray CT and a visceral fat area measurement value calculated by a correlation formula considering age.
1,19,28…第1電極群、2,20,29…第2電
極群、3…第3電極群、4,21,30…へそ位置マー
カー、5…非伸縮性ベルト、6,7…バックル、8…制
御部、9…表示装置、10,23…配線コード、11…
伸縮性ベルト、12…可動レール、13…第2電極群用
はめ込み穴、14…第3電極群用はめ込み穴、15,1
6…アーム、17,18…スライド式長さ可変部、2
2,31…背骨位置マーカー、23…配線コード、24
…胴体、25…プラスチック板、26…へそ、27…背
骨。1, 19, 28 ... First electrode group, 2, 20, 29 ... Second electrode group, 3 ... Third electrode group, 4, 21, 30 ... Navel position marker, 5 ... Non-stretchable belt, 6, 7 ... Buckle, 8 ... Control unit, 9 ... Display device, 10, 23 ... Wiring cord, 11 ...
Stretchable belt, 12 ... Movable rail, 13 ... Fitting hole for second electrode group, 14 ... Fitting hole for third electrode group, 15, 1
6 ... Arm, 17, 18 ... Sliding type variable length part, 2
2, 31 ... Spine position marker, 23 ... Wiring cord, 24
... Body, 25 ... Plastic board, 26 ... Navel, 27 ... Spine.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 藤波 進 東京都墨田区文花2丁目1−3 花王株 式会社研究所内 (72)発明者 田代 和宏 東京都中央区日本橋茅場町1−14−10 花王株式会社内 (56)参考文献 特開 平11−113870(JP,A) 特開2000−175875(JP,A) 特開 平11−123182(JP,A) 特開2000−14655(JP,A) 特開2002−85364(JP,A) (58)調査した分野(Int.Cl.7,DB名) A61B 5/05 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Susumu Fujinami 2-3 Fumika, Sumida-ku, Tokyo Inside Kao Co. Ltd. (72) Inventor Kazuhiro Tashiro 1-14-10 Nihonbashi Kayabacho, Chuo-ku, Tokyo Kao Corporation (56) Reference JP 11-113870 (JP, A) JP 2000-175875 (JP, A) JP 11-123182 (JP, A) JP 2000-14655 (JP, A) ) JP 2002-85364 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) A61B 5/05
Claims (15)
被測定体の腹部表面上への配置の位置が決定される一つ
以上の電極からなる第1電極群と、 前記被測定体の背中表面上に配置される一つ以上の電極
からなる第2電極群と、 前記被測定体の表面上で前記第1電極群と前記第2電極
群との略中間の位置に配置される二つ以上の電極からな
る第3電極群と、 前記第1電極群から選択した一つの電極及び前記第2電
極群から選択した一つの電極間に電流を流し、前記第3
電極群の内の二つの電極間に発生する電圧を測定する測
定手段と、 該電圧値に基づいて前記被測定体の腹部の脂肪量を算出
する算出手段と、を有する体脂肪測定装置。1. A first electrode group composed of one or more electrodes whose position on the abdominal surface of the object to be measured is determined with reference to the navel position of the object to be measured, and the object to be measured. A second electrode group composed of one or more electrodes arranged on the back surface of the body, and arranged on the surface of the object to be measured at a position approximately midway between the first electrode group and the second electrode group. A current is caused to flow between a third electrode group composed of two or more electrodes, one electrode selected from the first electrode group and one electrode selected from the second electrode group, and
A body fat measuring device comprising: a measuring unit that measures a voltage generated between two electrodes of an electrode group; and a calculating unit that calculates a fat amount in the abdomen of the body to be measured based on the voltage value.
位置を、背骨位置を基準にして決定する請求項1記載の
体脂肪測定装置。2. The body fat measurement device according to claim 1, wherein the position of arrangement of the second electrode group on the back surface is determined with reference to the position of the spine.
略非伸縮性のベルト上に配置され、前記第1電極群及び
前記第3電極群間の距離と前記第3電極群及び前記第2
電極群間の距離とが略等しくなるように固定された請求
項1記載の体脂肪測定装置。3. The electrode groups of the first to third electrode groups,
The distance between the first electrode group and the third electrode group and the third electrode group and the second electrode are arranged on a substantially non-stretchable belt.
The body fat measurement device according to claim 1, wherein the body fat measurement device is fixed such that the distance between the electrode groups is substantially equal.
伸縮性のベルト上に配置され、該ベルトにより各電極群
間の距離を調節する請求項1又は請求項2記載の体脂肪
測定装置。4. The electrode groups of the first to third electrode groups,
The body fat measurement device according to claim 1 or 2, wherein the device is arranged on a stretchable belt, and the distance between each electrode group is adjusted by the belt.
略非伸縮性のベルト上に配置され、該ベルト上に前記各
電極群間の距離を調節する調節部材を設けた請求項1又
は請求項2記載の体脂肪測定装置。5. The electrode groups of the first to third electrode groups,
The body fat measuring device according to claim 1 or 2, wherein the body fat measuring device is arranged on a substantially non-stretchable belt, and an adjusting member for adjusting a distance between the electrode groups is provided on the belt.
続し且つ前記第2電極群と前記第3電極群とを接続する
アームを設けた請求項1又は請求項2記載の体脂肪測定
装置。6. The body according to claim 1, further comprising an arm connecting the first electrode group and the third electrode group and connecting the second electrode group and the third electrode group. Fat measuring device.
被測定体の表面に貼りつける粘着性部材又は吸盤を設け
た請求項1又は請求項2記載の体脂肪測定装置。7. The body fat measuring device according to claim 1, further comprising an adhesive member or a suction cup for adhering each electrode of the first to third electrode groups to the surface of the object to be measured.
被測定体の腹部表面上への配置の位置が決定される一つ
以上の電極からなる第1電極群と、 前記被測定体の背中表面上に配置される三つ以上の電極
からなる第2電極群と、 前記第2電極群から選択した二つの電極間に電流を流
し、前記第1電極群から選択した一つの電極及び前記第
2電極群から選択した一つの電極間に発生する電圧を測
定する測定手段と、 該電圧値に基づいて前記被測定体の腹部の脂肪量を算出
する算出手段と、を有する体脂肪測定装置。8. A first electrode group consisting of one or more electrodes whose position on the abdominal surface of the object to be measured is determined with reference to the navel position of the object to be measured, and the object to be measured. A second electrode group consisting of three or more electrodes arranged on the back surface of the, and a current flowing between two electrodes selected from the second electrode group, and one electrode selected from the first electrode group; Body fat measurement having a measuring unit that measures a voltage generated between one electrode selected from the second electrode group, and a calculating unit that calculates the abdominal fat mass of the body to be measured based on the voltage value. apparatus.
位置を、背骨位置を基準にして決定する請求項8記載の
体脂肪測定装置。9. The body fat measurement device according to claim 8, wherein the position of the arrangement of the second electrode group on the back surface is determined with reference to the spine position.
接続するアーム又はコードを設けた請求項8又は請求項
9記載の体脂肪測定装置。10. The body fat measurement device according to claim 8, further comprising an arm or a cord that connects the first electrode group and the second electrode group.
記被測定体の表面に貼りつける粘着性部材又は吸盤を設
けた請求項8又は請求項9記載の体脂肪測定装置。11. The body fat measuring device according to claim 8, further comprising an adhesive member or a suction cup for sticking each electrode of the first and second electrode groups to the surface of the object to be measured.
る入力装置を備え、 前記算出手段が、前記電圧値と入力された外周長とに基
づいて内臓脂肪量を算出する請求項1乃至請求項11の
いずれか1項記載の体脂肪測定装置。12. An input device for inputting an outer peripheral length of the abdomen of the body to be measured, wherein the calculating means calculates a visceral fat amount based on the voltage value and the input outer peripheral length. The body fat measurement device according to claim 11.
1乃至請求項12のいずれか1項記載の体脂肪測定装
置。13. The body fat measurement device according to claim 1, wherein the fat amount is a visceral fat amount.
つ以上の電極からなる第1電極群と、 前記被測定体の背中表面上に配置される一つ以上の電極
からなる第2電極群と、 前記被測定体の表面上で前記第1電極群と前記第2電極
群との略中間の位置に配置される二つ以上の電極からな
る第3電極群と、 前記第1電極群から選択した一つの電極及び前記第2電
極群から選択した一つの電極間に電流を流し、前記第3
電極群の内の二つの電極間に発生する電圧を測定する測
定手段と、 前記被測定体の腹部の外周長と、前記被測定体の性別及
び/又は年齢を入力する入力手段と、 測定された前記電圧値と、入力された外周長と性別及び
/又は年齢とに基づいて内臓脂肪量を算出する算出手段
と、を有する体脂肪測定装置。14. A first electrode group composed of one or more electrodes arranged on the abdominal surface of the object to be measured, and a second electrode group composed of one or more electrodes arranged on the back surface of the object to be measured. An electrode group, a third electrode group composed of two or more electrodes arranged on the surface of the object to be measured, at a position substantially intermediate between the first electrode group and the second electrode group, and the first electrode A current is applied between one electrode selected from the group and one electrode selected from the second electrode group,
Measuring means for measuring the voltage generated between two electrodes of the electrode group, an outer circumference of the abdomen of the measured body, and an input means for inputting the sex and / or age of the measured body, A body fat measuring device comprising: the voltage value; and a calculating unit that calculates a visceral fat amount based on the input outer peripheral length and sex and / or age.
つ以上の電極からなる第1電極群と、 前記被測定体の背中表面上に配置される三つ以上の電極
からなる第2電極群と、 前記第2電極群から選択した二つの電極間に電流を流
し、前記第1電極群から選択した一つの電極及び前記第
2電極群から選択した一つの電極間に発生する電圧を測
定する測定手段と、 前記被測定体の腹部の外周長と、前記被測定体の性別及
び/又は年齢を入力する入力手段と、 測定された前記電圧値と、入力された外周長と性別及び
/又は年齢とに基づいて内臓脂肪量を算出する算出手段
と、を有する体脂肪測定装置。15. A first electrode group consisting of one or more electrodes arranged on the abdominal surface of the object to be measured, and a second electrode group consisting of three or more electrodes arranged on the back surface of the object to be measured. A current is caused to flow between the electrode group and two electrodes selected from the second electrode group to generate a voltage generated between one electrode selected from the first electrode group and one electrode selected from the second electrode group. Measuring means for measuring, an outer peripheral length of the abdomen of the measured object, an input means for inputting the sex and / or age of the measured object, the measured voltage value, the input outer peripheral length and sex and And / or a calculation means for calculating the amount of visceral fat based on the age, and a body fat measuring device.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
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JP2001206937A JP3396677B2 (en) | 2001-04-13 | 2001-07-06 | Body fat measurement device |
CNB028053613A CN100403978C (en) | 2001-02-22 | 2002-02-15 | Apparatus for measuring body fat |
EP02712402A EP1363531B1 (en) | 2001-02-22 | 2002-02-15 | Apparatus for measuring body fat |
US10/468,013 US7283869B2 (en) | 2001-02-22 | 2002-02-15 | Apparatus for measuring body fat |
DE60238034T DE60238034D1 (en) | 2001-02-22 | 2002-02-15 | BODY FAT METER |
PCT/JP2002/001325 WO2002065900A2 (en) | 2001-02-22 | 2002-02-15 | Apparatus for measuring body fat |
EP08162951A EP1989999B1 (en) | 2001-02-22 | 2002-02-15 | Apparatus for measuring body fat |
TW091102807A TW537881B (en) | 2001-02-22 | 2002-02-19 | Apparatus for measuring body fat |
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JP2001-115607 | 2001-04-13 | ||
JP2001115607 | 2001-04-13 | ||
JP2001206937A JP3396677B2 (en) | 2001-04-13 | 2001-07-06 | Body fat measurement device |
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JP3396677B2 true JP3396677B2 (en) | 2003-04-14 |
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CN107518893A (en) * | 2017-09-30 | 2017-12-29 | 武汉资联虹康科技股份有限公司 | A kind of block distribution formula cap test |
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