KR102460530B1 - Smart leg press machine with exercise guidance - Google Patents

Abstract

The present disclosure relates to a smart leg press machine with an exercise guidance function. The smart leg press machine includes: a seat configured for a user to sit on; a frame having a first guide for guiding movement of the seat; a footrest supported by the frame; a load generating unit for generating a load to be applied to the seat; and a control unit configured to control the load generating unit.

Description

Smart leg press machine equipped with exercise guidance function {SMART LEG PRESS MACHINE WITH EXERCISE GUIDANCE}

The present disclosure relates to a smart leg press machine, and more particularly, to a smart leg press machine that provides real-time feedback on a user's exercise and is equipped with an exercise map function.

Recently, as leisure time increases and societal interest in health increases, the population who engages in weight training to improve muscle strength and create a balanced body is increasing. The leg press machine used in weight training is a device configured to strengthen the muscles of the lower body as a whole by pushing the footrest connected to the heavy weight by the user using the force of the lower body.

The conventional leg press machine has a problem in that it is difficult to know whether the user is performing the exercise with the correct posture or force. In addition, the conventional leg press machine has a problem in that it is impossible to control the resistance force during exercise using physical resistance, or a large-capacity motor accompanied by noise is required to generate a large resistance force.

In addition, the conventional leg press machine has a problem in that it is difficult for the user to estimate his or her 1RM value, or to design a systematic exercise program accordingly. In addition, if the user is no longer able to proceed with the exercise as the exercise is repeatedly performed, there is a problem in that the risk of injury increases or the forced repetition cannot be performed without the help of an exercise assistant.

The present disclosure provides a smart leg press machine equipped with an exercise map function for solving the above problems.

The present disclosure may be implemented in various ways including a method, an apparatus (system), or a computer program stored in a readable storage medium.

According to an embodiment of the present disclosure, the smart leg press machine includes a seat configured to allow a user to sit, a frame provided with a first guide for guiding the movement of the seat, a footrest supported by the frame, and a load to be applied to the seat. It may include a load generating unit that generates and a control unit configured to control the load generating unit.

According to an embodiment of the present disclosure, the load generating unit includes a motor generating an initial load and an electro-hydraulic actuator connected to the motor and configured to amplify the initial load to generate a load to be applied to the seat, The smart leg press machine may further include a Series Elastic Actuator connected to the electro-hydraulic actuator and configured to detect when the user starts pushing the seat, including a plurality of elastic bodies.

According to an embodiment of the present disclosure, further comprising a display configured to receive a user input and output information related to exercise, wherein the controller controls the operation of the display, and the size of a load to be applied to the seat from the user to receive a first user input associated with the, receive information from the series resilient actuator relating to when the user starts pushing the seat, and to control the motor and the electro-hydraulic actuator based on the first user input and the information associated with the time. can be configured.

According to an embodiment of the present disclosure, the control unit receives, from a user, a second user input associated with a viscous force, an elastic force, and an inertial force of a load to be applied to the sheet generated by the load generating unit, and includes a first user input and a second user input. and may be further configured to control the motor and the electro-hydraulic actuator based on information related to the input and timing.

According to an embodiment of the present disclosure, the control unit receives a third user input associated with the exercise assistance mode from the user, and in response to determining that the user's current exercise speed has decreased by more than a predetermined threshold compared to the initial exercise speed , it may be further configured to differently reduce the magnitude of the load to be applied to the seat according to the exercise assistance mode set according to the third user input.

According to an embodiment of the present disclosure, a second guide for guiding the movement of the series elastic actuator and a sensor module configured to measure a distance that the series elastic actuator moves along the second guide, the control unit measuring from the sensor module It may be further configured to continuously receive the value to calculate the moving speed of the series elastic actuator, and calculate the moving speed of the sheet based on the calculated moving speed of the series elastic actuator.

According to an embodiment of the present disclosure, the current movement speed may be the current movement speed of the seat calculated by the controller, and the initial movement speed may be the average movement speed of the seat calculated by the controller while the user pushes the seat a predetermined number of times. have.

According to an embodiment of the present disclosure, further comprising a second guide for guiding movement of a force acting connection unit and series elastic actuator configured to transmit a load generated by the load generation unit to the seat, the force acting connection unit comprising a plurality of fixed pulleys; It may include at least one movable pulley and a cable.

According to an embodiment of the present disclosure, the at least one movable pulley is disposed on one side of the series elastic actuator, and moves together along the series elastic actuator and the second guide as the user moves the seat, and the plurality of fixed pulleys is a frame It is fixedly arranged on the lower side of the footrest, and the cable may have one end connected to the seat through at least one movable pulley and a plurality of fixed pulleys, and the other end may be fixed to the frame.

According to an embodiment of the present disclosure, a plane orthogonal to a fixed axis of the at least one movable pulley and a plane orthogonal to each fixed axis of the plurality of fixed pulleys may be perpendicular to each other.

According to an embodiment of the present disclosure, further comprising a sensor module configured to detect the movement of the seat, the control unit receives the user's initial exercise length from the sensor module, calculates the exercise recognition distance based on the initial exercise length, , when the user pushes the seat beyond the exercise recognition distance, it may be further configured to be recognized as one exercise.

According to an embodiment of the present disclosure, further comprising a display configured to receive a user input and output information related to exercise, the control unit, a fourth user input for executing a 1RM (Repetition Maximum) test from the user In response to receiving the viscous force, elastic force, and inertial force of the load to be applied to the seat generated by the load generating unit are all set to the lowest level, the size of the load applied to the seat, the number of exercises of the user and the 1RM estimation model Based on the calculation of the user's 1RM value, it may be further configured to display the calculated user's 1RM value on the display.

According to an embodiment of the present disclosure, the 1RM estimation model may be calculated based on Equation 1.

(Formula 1)

{

는 시트에 부여된 부하의 크기,

은 사용자의 운동 횟수}

{

is the magnitude of the load applied to the seat,

is the number of workouts by the user}

According to an embodiment of the present disclosure, the fourth user input may include information related to the user's weight and gender, and the magnitude of the load applied to the sheet may be determined based on the user's weight and gender.

According to an embodiment of the present disclosure, the control unit, when the number of exercise of the user exceeds a preset threshold value, calculates the size of a new load to be given to the seat based on the calculated user's 1RM value and 1RM estimation model, , Calculate the user's corrected 1RM value based on the calculated new load size, the number of new exercise of the user and the 1RM estimation model, and may be further configured to display the calculated user's corrected 1RM value on the display.

According to an embodiment of the present disclosure, the controller may be further configured to calculate the user's exercise skill level based on the calculated user's 1RM value and the user's weight, and display the calculated user's exercise skill level on the display. can

According to an embodiment of the present disclosure, the control unit, in response to receiving the user's exercise goal, is further configured to determine the exercise routine based on the user's exercise goal, the calculated user's 1RM value and the user's weight, The exercise routine may include the size of the load to be applied to the seat, the number of repetitions of the exercise per set, the number of sets, and the rest time between sets.

According to some embodiments of the present disclosure, by providing the user with the magnitude of the force applied by the user to the footrest in real time, the user can monitor the exercise state in real time and exercise with a force of an appropriate size for every exercise cycle.

According to some embodiments of the present disclosure, when the user's feet are misplaced according to the type of exercise being performed, the user may receive warning messages related thereto in various forms to easily move the feet to the normal position. Accordingly, the user can perform the exercise in an optimal posture.

According to some embodiments of the present disclosure, when the user applies different force to both feet, the user may receive a warning message related thereto in various forms to easily adjust the same force to be applied to both feet. Accordingly, it is possible to prevent the user's lower body from being unbalanced.

According to some embodiments of the present disclosure, various exercise programs suitable for the user's exercise purpose may be provided by combining various characteristics and strength of the load. Accordingly, it is possible to maximize the exercise effect of the user.

According to some embodiments of the present disclosure, it is possible to reduce the risk of an accident during exercise by changing the amount of exercise load in real time.

According to some embodiments of the present disclosure, including a load generating unit including a miniaturized actuator, the weight and size can be significantly reduced compared to the existing leg press machine, and when the user's exercise weight changes, an injury caused by direct contact with a weight, etc. can prevent

According to some embodiments of the present disclosure, it is possible to solve the noise problem of the existing leg press machine, and it is possible to reduce power consumption due to the use of a large-capacity motor.

According to some embodiments of the present disclosure, it is possible to reduce the volume of the smart leg press machine by increasing the movable length/stroke of the seat using at least one movable pulley.

According to some embodiments of the present disclosure, it is possible to plan and perform an optimal strength exercise program suitable for various users, such as the general public, athletes, and patients in need of rehabilitation treatment.

According to some embodiments of the present disclosure, it is possible to measure the user's heart rate, body temperature, and the like, and when it is determined that the user's physical state value is unreasonable to the user, the load to be applied to the entire seat is lowered, thereby preventing the user's injury in advance. can be prevented

According to some embodiments of the present disclosure, it has the effect of exercising with a personal trainer that can assist the user's exercise, and can help muscle growth by increasing the number of exercises when the strength is low.

The effect of the present disclosure is not limited to the above-mentioned effects, and other effects not mentioned are those of ordinary skill in the art to which the present disclosure belongs from the description of the claims (hereinafter referred to as 'person of ordinary skill') can be clearly understood by

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present disclosure will be described with reference to the accompanying drawings described below, wherein like reference numerals denote like elements, but are not limited thereto.
1 is a diagram illustrating an example in which a user is provided with information about an exercise through a display while using a smart leg press machine according to an embodiment of the present disclosure.
2 is a perspective view of a smart leg press machine according to an embodiment of the present disclosure.
3 is a view showing a sensor module of the footrest of the smart leg press machine according to an embodiment of the present disclosure.
FIG. 4 is a diagram illustrating an example in which guidance related to a user's foot is deviating from a predetermined position according to an embodiment of the present disclosure;
FIG. 5 is a diagram illustrating an example in which guidance related thereto is displayed on a display when a user applies a force to both feet differently according to an embodiment of the present disclosure;
6 is a diagram illustrating an example in which information related to a user's exercise is comprehensively output on a display according to an embodiment of the present disclosure.
7 is a block diagram showing a detailed configuration of a smart leg press machine according to an embodiment of the present disclosure.
8 is a flowchart illustrating a method in which a controller provides information related to an appropriate load and exercise to a user according to an embodiment of the present disclosure.
9 is a schematic conceptual diagram of a smart leg press machine according to an embodiment of the present disclosure.
10 is a diagram illustrating a control method of a control unit applied to a smart leg press machine according to an embodiment of the present disclosure.
11 is a perspective view showing a structure in which a cable is connected to a smart leg press machine according to an embodiment of the present disclosure.
12 is a perspective view showing a state in which the seat of the smart leg press machine according to an embodiment of the present disclosure is at the bottom.
13 is a perspective view showing a state in which the seat of the smart leg press machine according to an embodiment of the present disclosure is at the top.
14 is a diagram illustrating an example of inputting information related to a user's exercise according to an embodiment of the present disclosure.

Hereinafter, specific contents for carrying out the present disclosure will be described in detail with reference to the accompanying drawings. However, in the following description, if there is a risk of unnecessarily obscuring the gist of the present disclosure, detailed descriptions of well-known functions or configurations will be omitted.

In the accompanying drawings, identical or corresponding components are assigned the same reference numerals. In addition, in the description of the embodiments below, overlapping description of the same or corresponding components may be omitted. However, even if descriptions regarding components are omitted, it is not intended that such components are not included in any embodiment.

Advantages and features of the disclosed embodiments, and methods of achieving them, will become apparent with reference to the embodiments described below in conjunction with the accompanying drawings. However, the present disclosure is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only the present embodiments allow the present disclosure to be complete, and those of ordinary skill in the art to which the present disclosure pertains. It is only provided to fully inform the person of the scope of the invention.

Terms used in this specification will be briefly described, and the disclosed embodiments will be described in detail. The terms used in the present specification have been selected as currently widely used general terms as possible while considering the functions in the present disclosure, but these may vary depending on the intention or precedent of a person skilled in the art, the emergence of new technology, and the like. In addition, in a specific case, there is a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the corresponding invention. Therefore, the terms used in the present disclosure should be defined based on the meaning of the term and the contents of the present disclosure, rather than the simple name of the term.

Expressions in the singular herein include plural expressions unless the context clearly dictates the singular. Also, the plural expression includes the singular expression unless the context clearly dictates the plural. In the entire specification, when a part "includes" a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated.

In addition, the term 'module' or 'unit' used in the specification means a software or hardware component, and 'module' or 'unit' performs certain roles. However, 'module' or 'unit' is not meant to be limited to software or hardware. A 'module' or 'unit' may be configured to reside on an addressable storage medium or may be configured to reproduce one or more processors. Thus, as an example, a 'module' or 'unit' refers to components such as software components, object-oriented software components, class components and task components, processes, functions, properties, may include at least one of procedures, subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, database, data structures, tables, arrays or variables. Components and 'modules' or 'units' are the functions provided within are combined into a smaller number of components and 'modules' or 'units' or additional components and 'modules' or 'units' can be further separated.

According to an embodiment of the present disclosure, a 'module' or a 'unit' may be implemented with a processor and a memory. 'Processor' should be construed broadly to include general purpose processors, central processing units (CPUs), microprocessors, digital signal processors (DSPs), controllers, microcontrollers, state machines, and the like. In some contexts, a 'processor' may refer to an application specific semiconductor (ASIC), a programmable logic device (PLD), a field programmable gate array (FPGA), or the like. 'Processor' refers to a combination of processing devices, such as, for example, a combination of a DSP and a microprocessor, a combination of a plurality of microprocessors, a combination of one or more microprocessors in combination with a DSP core, or any other such configurations. You may. Also, 'memory' should be construed broadly to include any electronic component capable of storing electronic information. 'Memory' means random access memory (RAM), read-only memory (ROM), non-volatile random access memory (NVRAM), programmable read-only memory (PROM), erase-programmable read-only memory (EPROM); may refer to various types of processor-readable media, such as electrically erasable PROM (EEPROM), flash memory, magnetic or optical data storage, registers, and the like. A memory is said to be in electronic communication with the processor if the processor is capable of reading information from and/or writing information to the memory. A memory integrated in the processor is in electronic communication with the processor.

Throughout this specification, the term 'on a network' or 'on a network' may refer to a state that is searchable or accessible through any electronic device capable of wired/wireless communication. For example, 'on a network' or 'on a network' may indicate a state in which any content stored in any device connected to any electronic device via wire or wirelessly and/or information related thereto can be searched for or accessed.

Prior to describing the embodiments of the present disclosure in detail, the upper side of a drawing may be referred to as "upper" or "upper side", and the lower side thereof as "lower" or "lower side" of the configuration shown in the drawing. In addition, in the drawings, the remaining portion between the upper and lower portions of the illustrated configuration or except for the upper and lower portions may be referred to as “side” or “side”.

In embodiments of the present disclosure, the left side of the drawing may be referred to as “left” or “left”, and the right side may be referred to as “right” or “right” of the configuration shown in the drawing. Relative terms such as “upper” and “upper” may be used to describe the relationship between the components shown in the drawings, and the present disclosure is not limited by such terms.

1 is a diagram illustrating an example of receiving information about an exercise through a display while a user uses a smart leg press machine 120 according to an embodiment of the present disclosure. As shown, the user 110 is seated on the seat, and the footrest 122 supported by the frame of the smart leg press machine 120 can be pushed with both feet of the user 110 to perform the exercise. In this case, the appropriate position of both feet of the user 110 may be different depending on the purpose and expected effect of the exercise the user 110 wants to perform.

In one embodiment, the display 124 may be configured to receive an input from the user 110 and output information related to the user 110's exercise. For example, the user 110 inputs a user input related to the size of the load to be applied to the sheet, the viscous force of the load, the elastic force of the load, the inertial force of the load, etc. on the display 124, and the related information is displayed on the display 124 can be output to In another example, the user 110 may perform an exercise to be performed (eg, a standard leg press, a wide stance leg press, a narrow stance leg press, a high-fit leg press, a low-fit leg press, a single leg press, strength training, A user input related to hypertrophy training, muscular endurance training, etc.) may be input, and information related thereto may be output to the display 124 .

In one embodiment, the display 124 displays information related thereto on the display 124 when the position of both feet of the user 110 is not appropriate during the exercise according to the type of exercise the user 110 selects to perform. (126) can be output. In another embodiment, the display 124 may output information related thereto on the display 124 when the force for pushing the footrest 122 is different between the left foot and the right foot of the user 110 . In addition, the display 124 may output various information related to the exercise of the user 110 . This will be described later.

2 is a perspective view of a smart leg press machine 200 according to an embodiment of the present disclosure. As shown, the smart leg press machine 200 includes a frame 210, a seat 220, a guide 230, a footrest 240, a display 250, a load generating module 260 and a control unit (not shown). may include. The controller (not shown) may include at least one processor. The display 250 may be configured integrally with the footrest 240 or may be implemented as a separate configuration. The seat 220 may be configured to allow a user to sit.

The frame 210 is a configuration that allows the smart leg press machine 200 to contact the ground, and other components may be installed on the frame 210 or the frame 210 may be configured to support other components. A guide 230 for guiding the movement of the seat 220 may be installed in the frame 210 so that the seat 220 can move as the user performs an exercise. In FIG. 2 , the guide 230 is illustrated as including a pair of rails, but is not limited thereto, and may include any configuration capable of guiding the movement of the seat 220 .

The footrest 240 is supported by the frame 210 , and may be disposed in a position where the user can push with his or her feet while sitting on the seat 220 . The footrest 240 may include any type of footrest that enables the user to activate a muscle region to be trained. For example, the footrest 240 may include a footrest configured to raise both the user's feet as one plate form or a footrest configured to lift both the user's feet separately in the form of two plates, but this not limited

The display 250 may receive an input from the user and provide information about the user's exercise to the user. Display 250 may refer to any display device associated with the computing device, eg, any capable of receiving user input and displaying any information/data controlled by or provided from the computing device. may refer to a display device of For example, the display 250 may be a touch display.

In FIG. 2 , the display 250 is positioned on the footrest 240 and is shown to be integrally formed with the footrest 240 , but is not limited thereto, and may be disposed at any position of the smart leg press machine 200 . Alternatively, the display 250 may be located outside the smart leg press machine 200 connected to the smart leg press machine 200 by wire or wirelessly, and may be configured to be freely detachable. Additionally, by connecting the smart leg press machine 200 and the user's mobile phone, tablet, etc. by wire or wirelessly, the user can use the mobile phone or tablet to change settings related to exercise or receive exercise information. have.

In an embodiment, the exercise-related information displayed on the display 250 may include a set value related to an exercise input by the user or a value calculated according to the user's exercise performance. For example, information about the exercise may include a load value to be applied to the seat, a type of load to be applied to the seat, the number of target exercise sets, the number of exercise sets performed, the number of target exercises performed, the number of performed exercises, and the footrest 240 . The force applied to the whole, the force applied by both feet of the user to the footrest 240, the location information of the user's feet, the warning display for incorrect exercise performance, the recommended value of the time to maintain the tension to improve muscle strength, etc. may include

The load generating module 260 may be configured to generate a load required for a user to perform an exercise. In one embodiment, the load generating module 260 may include a series elastic actuator connecting the seat 220 and the load generating unit, including a load generating unit that generates a load to be applied to the seat. In this case, the load generating unit may include a motor and an electro-hydraulic actuator. When the motor generates an initial load of a certain amount, the electro-hydraulic actuator may amplify the initial load generated from the motor to generate a load to be applied to the seat 220 . In addition, the series elastic actuator may include a plurality of elastic bodies, and is connected to the electro-hydraulic actuator, when the user 110 starts to push the footrest 240 or when the user 110 finishes pushing the footrest 240 . It may be configured to detect a viewpoint or the like. According to the data sensed by the electro-hydraulic actuator, the motor and the electro-hydraulic actuator may be controlled to apply a load to the seat 220 .

3 is a view showing a sensor module of the footboard 240 of the smart leg press machine according to an embodiment of the present disclosure. As shown, the scaffold 240 may include a first sensor module including a plurality of sensors 312 , 314 , 316 , 318 , 322 , 324 , 326 , 328 . In one embodiment, the first sensor module may be configured to sense the position of each foot of the user, the force applied by the user's left foot to the footrest 240 , the force applied by the user's right foot to the footrest 240 , and the like.

As shown, the footrest 240 is a first area 310 of the footrest that senses the position of the user's left foot and the force applied to the footrest 240 by the user's left foot, the position of the user's right foot, and the user's right foot is the footrest It may be composed of a second region 320 of the footrest that senses the force applied to the 240 . The first area 310 of the footrest and the second area 320 of the footrest may be formed of separate iron plates and the like, and may be disposed inside the footrest 240 . As shown, four sensors 312 , 314 , 316 , 318 may be disposed at each corner portion of the first area 310 of the footrest, and similarly at each corner portion of the second area 320 of the footrest. Four sensors 322 , 324 , 326 , 328 may be disposed. Without being limited thereto, an arbitrary number of sensors may be used in the first area 310 of the footrest and the second area of the footrest ( 320) may be disposed at any location. In addition, although the first sensor module is illustrated as being disposed inside the scaffold 240 , the present invention is not limited thereto, and may be disposed outside the scaffold 240 .

FIG. 4 is a diagram illustrating an example in which guidance related to a user's foot is deviating from a predetermined position according to an embodiment of the present disclosure; The control unit receives the information related to the position of the user's left foot and the position of the user's right foot from a plurality of sensors arranged to measure the position of the user's left foot and the user's right foot, respectively, and outputs the information to the display can do. Through the first operation 410 and the second operation 440 , the user may adjust the position of the foot to fit the movement.

The first operation 410 illustrates an example in which the position of the user's right foot deviates from the predetermined position by more than a predetermined threshold and a warning indication is output on the display. As illustrated, a first visual object 422 indicating a position of the user's left foot on the footrest may be displayed in the first area 420 of the display. Similarly, a second visual object 432 representing the location of the user's right foot on the footrest may be displayed within the second area 430 of the display.

In one embodiment, when the distance between the location of the user's foot and the predetermined location exceeds a first preset threshold (eg, 15 cm), a warning message may be displayed. Here, the predetermined position and/or the first threshold at which the user's foot should be located may be different depending on the type of exercise (standard leg press, wide stance leg press, narrow stance leg press, etc.) selected by the user. For example, when the distance between the position of the user's left foot and the first predetermined position 424 does not exceed the predetermined first threshold, the warning message may not be displayed. On the other hand, when the distance between the position of the user's right foot and the predetermined second position 434 exceeds a preset first threshold, a warning message may be displayed.

For example, the color of the second visual object 432 indicating the position of the user's right foot is displayed/displayed differently from the color of the first visual object 422 , and the size of the second visual object 432 is the second. 1 It may be displayed differently from the size of the visual object 422 . Additionally or alternatively, an icon (eg, an arrow icon) indicating a direction in which the user should move the foot may be displayed near the second visual object 432 indicating the location of the user's right foot. Additionally or alternatively, the warning indication may be provided in such a way that the background of any visual object, symbol, text, etc., the type of pattern or the size of the pattern, etc. are changed, and the user recognizes by a sense other than sight, such as a warning sound. It may be provided in any form possible.

In an embodiment, the force applied by the user's foot to the footrest may be displayed on the display in the form of a bar graph. As shown, the force that the user's left foot applies to the footrest may be displayed as a bar graph 426 on the first area 420 of the display. Similarly, the force the user's right foot applies to the footrest may be displayed as a bar graph 436 on the second area 430 of the display. When the distance between the position of the user's right foot and the second predetermined position 434 exceeds the first preset threshold, the color of the bar graph 436 displayed on the second area 430 of the display is It is displayed in a color different from that of the bar graph 426 displayed on the first area 420 to warn the user that the position of the foot is incorrect.

In an embodiment, the warning display related to the position of the user's left foot and the warning display related to the position of the user's right foot may be displayed in different or the same manner. For example, the warning display related to the position of the left foot and the warning display related to the position of the right foot may have different colors and sizes, and the user may directly set them.

The second operation 440 represents an example in which the user receives the warning message, moves the position of the right foot, and places both the left foot and the right foot in their normal positions. As illustrated, since the distance between the position of the user's left foot and the first predetermined position 424 does not exceed the first preset threshold, a warning message related to the position of the left foot may not be displayed. Since the distance between the position of the user's right foot and the predetermined second position 434 does not exceed the first preset threshold, a warning message related to the position of the right foot may not be displayed.

Although it is illustrated in FIG. 4 that information related to the position of the user's foot is displayed on the display as visual objects 422, 432, 442, and 444 in the shape of a foot, the present invention is not limited thereto, and any visual object, voice, symbol or text is not limited thereto. It can also be printed out. In FIG. 4 , information related to the position of the user's left foot and information related to the position of the user's right foot are shown to be output in the first area 420 of the display and the second area 430 of the display, but the present invention is not limited thereto. . For example, the above information may be displayed simultaneously or overlapped in one area of the display. Additionally, when the single-leg press exercise in which the user performs the exercise with only one leg is performed, only information related to the position of the user's foot performing the exercise may be provided.

With this configuration, when the user's feet are misplaced according to the type of exercise to be performed, the user can receive warning messages related thereto in various forms to easily move the feet to the normal position. Accordingly, the user can perform the exercise in an optimal posture.

FIG. 5 is a diagram illustrating an example in which guidance related thereto is displayed on a display when a user applies a force to both feet differently according to an embodiment of the present disclosure; The control unit receives information related to the force applied by the user's left foot to the footrest and information related to the force applied by the user's right foot to the footrest from a plurality of sensors arranged to measure the force applied to the footrest by each of the user's left and right feet and output it to the display. Through the first operation 510 and the second operation 560 , when the force of the left foot and the right foot are different from each other, the user may be provided with a feedback related thereto.

The first operation 510 represents an example in which information related to the force applied to the footrest by the left foot and the right foot is provided through the display in a state in which the user starts exercising. In an embodiment, the force applied by the user's foot to the footrest may be displayed on the display in the form of a bar graph. As illustrated, the force applied by the user's left foot to the footrest may be displayed as a bar graph 522 on the first area 520 of the display. Similarly, the force that the user's right foot applies to the footrest may be displayed as a bar graph 532 on the second area 530 of the display. Here, the heights of the bar graphs 522 and 532 may be determined based on a force applied by the user's foot to the footrest in real time and a load value set by the user to perform the exercise.

In one embodiment, when the difference between the force applied by the user's left foot to the footrest and the force applied by the user's right foot to the footrest exceeds a second preset threshold (eg, 5 kg, 5%, etc.), related A warning message may be output on the display. In the first operation 510 , the difference between the force applied by the user's left foot to the footrest and the force applied by the user's right foot to the footrest does not exceed a preset second threshold, and thus a warning message may not be displayed.

In one embodiment, the force applied by the user's left foot to the footrest and the force applied by the user's right foot to the footrest may be numerically displayed on the display. As illustrated, numerical information 540 and 566 related to the force applied by the user's left foot to the footrest may be displayed on the first region 520 . Similarly, numerical information 550 and 568 related to the force applied by the user's right foot to the footrest may be displayed on the second region 530 . The force applied by the user's foot to the footrest may be provided in a form recognizable by the user by other senses such as a notification sound in addition to visual information such as bar graphs and numerical information.

The second operation 560 illustrates an example in which a warning message is displayed when the difference between the force applied by the user's left foot to the footrest and the force applied by the user's right foot to the footrest exceeds a preset second threshold. Here, the preset second threshold may be directly set by the user, recommended by the controller to the user, or automatically determined based on the type of exercise the user performs. As shown, the warning message may be provided in a form in which the bar graph 562 associated with the left foot and the bar graph 564 associated with the right foot are displayed in different colors. The warning display may be provided as a difference in height and color of the bar graph, but is not limited thereto. For example, the warning indication may be provided in such a way that the background of any visual object, symbol, text, etc., the type of pattern or the size of the pattern, etc. are changed, and may be recognized by the user by senses other than visual, such as a warning sound. It may be provided in any form.

Through this configuration, when the user applies different force to both feet, the user may receive a warning message related thereto in various forms to easily control the same force to be applied to both feet. Accordingly, it is possible to prevent the user's lower body from being unbalanced.

6 is a diagram illustrating an example in which information related to a user's exercise is comprehensively output on a display according to an embodiment of the present disclosure. Such information may be displayed on the display of the smart leg press machine, or may be displayed on the display of the user terminal (eg, smart phone) connected to the smart leg press machine.

In an embodiment, the display may display information related to the size of the load and set values for various load characteristics in the first area 610 . The size of the load may be directly set by the user or may be a value automatically set by the control unit as a user-customized value. Load characteristics can include load viscous force, load elastic force, and load inertia force. Among the four stages, low (25%), middle (50%), high (75%), and very high (100%), respectively. can be set to one. Alternatively, each of the characteristics of the load may be settable in a more granular step, or may be set in a more simplified step such as a second step or a third step.

Here, the viscous force of the load indicates a characteristic of the load that allows the user to feel a higher sense of weight as the user tries to perform the exercise at a higher speed. The elastic force of the load indicates the characteristic of the load that allows the user to feel a higher sense of weight as the distance between the seat and the footboard increases. The inertia force of the load indicates the characteristic of the load that allows the user to feel a higher weight when the same specific force is applied to the footrest in a stationary state than when a force of a specific size is applied to the footrest in a dynamic state. In this case, more than one type of load may be applied to the seat at the same time.

A detailed method for generating the above load will be described later. In FIG. 6 , the load value that the user wants to use for exercise is displayed as a number (eg, 50 kg), and the set value for various load characteristics is displayed in graphs and characters, but the present invention is not limited thereto, and the above information is provided in various forms. It can be displayed as a number, symbol, character, graph, etc.

In one embodiment, the display may include the number of workout sets the user is currently performing, the total number of workout sets the user has specified to perform, the number of workouts the user is currently performing within each set, and the number of workout sets the user has specified to perform within each set. Information such as a recommended value of the total number of workouts and a time for maintaining tension may be displayed on the second area 620 . Here, the time for maintaining the tension (TUT) may mean a time during which the user continues one exercise. The time to maintain the tension can be directly input by the user, or the user's training purpose (power improvement, explosive strength improvement, maximum strength improvement, muscle hypertrophy, muscular endurance improvement, etc.), user's exercise-related information (user's weight, body fat mass, skeletal muscle) amount, etc.) may be automatically determined. The controller may recognize the exercise as one exercise only when the user performs one exercise for a time longer than or equal to the time the user maintains the tension. In addition, whether the exercise was performed for a time longer than the time to maintain the tension for every number of exercises may be provided as audiovisual data such as a graph.

In an embodiment, the display may display the third area 630 of information related to the length of the exercise for every number of times of exercise of the user. The controller may receive the user's initial exercise length, and calculate the exercise recognition distance 632 based on the initial exercise length. For example, the exercise recognition distance 632 may be 65% of the initial exercise length.

In one embodiment, when the user pushes the footrest by the movement recognition distance 632 or more, it may be recognized as one exercise. The display may display whether or not the user pushes a distance equal to or greater than the exercise recognition distance 632 for every number of exercises as visual data such as a graph. For example, the display may display the exercise distance for every number of exercises in various ways, such as a bar graph, a line graph, and a pie graph.

In one embodiment, information related to the above-described position of the user's left foot, the position of the user's right foot, the force applied by the user's left foot to the footrest, and the force applied by the user's right foot to the footrest may be displayed in the fourth area 640. have. The information related to the user's exercise that can be output on the display is not limited to the illustrated example, and may include a set value related to an exercise input by the user or a value calculated according to the user's exercise performance and related visual data. can For example, information such as a maximum force/average force with which the user pushes the footrest for every exercise cycle may be displayed on the display.

7 is a block diagram showing a detailed configuration of a smart leg press machine according to an embodiment of the present disclosure. As shown, the smart leg press machine has an input/output device 710, a communication device 720, a control unit 730, a motor (not shown), an electro-hydraulic actuator 740 (EHA, Electro Hydraulic Actuator), a series elastic actuator. (750) (SEA, Series Elastic Actuator) and may include a force action connection (760).

The input/output device 710 may include a series elastic actuator encoder 712 and an electro-hydraulic actuator encoder 714 . The input/output device 710 may be configured to transmit operation data/real-time position data of the electro-hydraulic actuator 740 and the serial elastic actuator 750 to the controller 730 . In addition, the input/output device 710 may include a touch panel, a keypad, a keyboard, and the like. A user may select and set an appropriate operation mode according to an exercise plan by using the input/output device 710 . In this case, the control operation may be finely adjusted by inputting additional control factors in each operation mode. The input/output device 710 may be connected to communicate with the controller 730 .

The communication device 720 may be configured to transmit/receive various information (eg, user information and exercise information data) to and from the controller 730 . Additionally, the communication device 720 may provide a configuration or function for communicating with a user's mobile phone, tablet, or other system (eg, a separate cloud system, etc.) through a network.

The controller 730 may include a driving force controller 732 , an exercise force controller 734 , and a content controller 736 . The controller 730 may be configured to control the entire driving-related algorithm in real time. The control unit 730 may be configured in various forms in the form of an electric circuit, a circuit board, an integrated circuit chip, software, firmware, etc. in order to perform arithmetic processing, storage and control functions, and the like.

The control unit 730 may be configured such that the motor and the electro-hydraulic actuator 740 generate a load based on the kinetic force and the driving force transmitted to the series elastic actuator 750 . Specifically, the control unit 730 calculates the mutual force due to the kinetic force and the driving force by using the displacement change of the plurality of elastic bodies included in the series elastic actuator 750, and based on the calculated force, the motor and the electro-hydraulic actuator 740 ) can create a load.

In the storage device (memory) of the controller 730 , control models according to various operation modes may be pre-stored. The user can set the operation mode and the control model with the input/output device 710 and additionally input the values of factors for detailed adjustment of each operation mode to appropriately control the motor and the electro-hydraulic actuator 740 . In one embodiment, the user may set up an exercise plan in advance with advice from an exercise instructor or the like, set an operation mode accordingly, and input a command to the control unit 730 through the input/output device 710 . In this case, the user determines whether to perform the basic type of the set operation mode as it is or whether to further adjust the set operation mode in detail, and then adds values of related factors to the control unit 730 when the set operation mode is further adjusted in detail. can be entered as

Accordingly, the driving force control unit 732 may receive the user's input value, calculate it, and then cause the motor and the electro-hydraulic actuator 740 to generate a load according to a pre-stored control model. At this time, a displacement change of the plurality of elastic bodies included in the series elastic actuator 750 may be generated, and the measured displacement change result of the plurality of elastic bodies may be transmitted to the driving force controller 732 . Accordingly, the driving force control unit 732 calculates the mutual force Fh acting on the series elastic actuator 750 by using the displacement of the plurality of elastic bodies. The mutual force Fh may be expressed by an equation using displacement values of a plurality of elastic bodies as a variable, and the driving force control unit 732 calculates the mutual force Fh based on the equation.

Also, the exercise force control unit 734 sets an admittance model based on the calculated Fh. As shown in [Equation 1] below, the admittance model I(s) may be established including a plurality of factors. That is, the admittance model I(s) is established using virtual impedance factors M, C, and K. The values of M, C, and K are predefined according to the control model, or values of M, C, and K The user may input at least one of them to the exercise force control unit 734 through the input/output device 710 . The exercise force control unit 734 may control the electro-hydraulic actuator 740 to generate an appropriate exercise load according to values of specified or input factors.

In [Equation 1], the M factor means an imaginary mass, and when the value is increased, the effect on the inertial force increases. The factor C means virtual damping, and when the value is increased, the effect on the viscous force increases. The K factor means an imaginary spring, and when the value is increased, the effect on the elastic force increases. The motion force control unit 734 may perform a control operation using the admittance model I(s) of [Equation 1]. Specifically, the motion force control unit 734 sets the admittance model I(s) based on the mutual force Fh, and drives the motor and the electro-hydraulic actuator 740 to generate an appropriate load. In this case, the generated load may act in relation to each of the inertial force, the viscous force, and the elastic force, and may act in relation to the combined force of at least two of the inertial force, the viscous force, and the elastic force.

The smart leg press machine according to an embodiment may further include a body detection sensor capable of measuring the user's body state. The body sensor may measure, for example, a user's heart rate, body temperature, and the like, and an infrared sensor, a camera sensor, etc. may be applied. At this time, when it is determined that the user's body state value measured through the body sensor is unreasonable to the user, the content control unit 736 limits the driving force through the torque controller to lower the load to be applied to the seat, thereby preventing injury to the user. can be prevented in advance. For example, when the heart rate measured by the body sensor exceeds a preset heart rate (limit heart rate), the content controller 736 may limit the driving force to a first set value or less. Here, the set heart rate and the first set value may be stored by a user input in advance through the input/output device 710 , and the first set value is a value smaller than the load generated by the motor and the electro-hydraulic actuator 740 . It is preferable to have And, when the change value of the exercise force reaches the second set value (for example, when the user's force is rapidly changed, the user's power is lost, etc.), the content control unit 736 sets the driving force through the torque controller as a third setting. value can be limited.

In addition, the content controller 736 may control the load value in order to measure the maximum load value 1RM that the user can perform one exercise. For example, the control unit causes the maximum load that can be applied to the seat to be applied to the seat while the user applies force to the footrest, and then gradually reduces the size of the load, so that the seat moves as the user pushes the footrest. It may be configured to recognize the load value at the time of starting to win as the maximum load value (1RM) that the user can perform one exercise.

The electro-hydraulic actuator 740 may be connected to the motor and configured to amplify an initial load generated from the motor to generate a load to be applied to the seat. The electro-hydraulic actuator 740 generates a load to be applied to the entire force acting connection part 760 , and may be configured to be operated by hydraulic pressure while being controlled by the controller 730 . According to one embodiment, the electro-hydraulic actuator 740 may include a hydraulic pump and a hydraulic cylinder, and the control unit 730 controls the hydraulic pump or adjusts the hydraulic pressure entering the hydraulic cylinder from the hydraulic pump to control the load of the hydraulic cylinder. You can control movement.

The series elastic actuator 750 is connected to the electro-hydraulic actuator 740 and includes a plurality of elastic bodies to receive a kinetic force applied to the force action connection part 760 , and a driving force as a load generated by the electro-hydraulic actuator 740 . It may be configured to receive a change in the displacement of the elastic body. Through this, the series elastic actuator 750 may be configured to detect a time when the user starts pushing the footrest or when the user finishes pushing the footrest. The plurality of elastic bodies may be configured to have different lengths or elastic moduli according to the size of the maximum load to be generated.

In one embodiment, the smart leg press machine may further include a second sensor module configured to detect the movement of the seat to measure the exercise length. For example, the second sensor module is configured to detect the movement of the series elastic actuator 750 , and may calculate the movement length of the sheet based on the movement length of the series elastic actuator 750 . The controller 730 may display the exercise length for each exercise number of the user on the display. For example, the controller 730 may calculate the user's initial exercise length using the second sensor module and determine the exercise recognition distance based on the initial exercise length. When the user pushes the sheet more than the movement recognition distance, it is recognized as a one-time exercise, and the control unit 730 displays on the display whether the user pushed the sheet to a distance greater than the movement recognition distance for every number of movements as visual data such as a graph. can

The force acting connection 760 may be configured to transmit a load generated by the motor and the electro-hydraulic actuator 740 to the user. The force acting connection 760 may include a cable, and may include a fixed pulley and/or a movable pulley.

8 is a flowchart illustrating a method 800 in which a controller provides information related to an appropriate load and exercise to a user according to an embodiment of the present disclosure. Method 800 may be performed by a controller. As shown, in step S810, the control unit may receive a user input. Here, the user input is the size of the load to be applied to the seat, the viscous force of the load, the elastic force of the load, the inertial force of the load, the type of exercise the user wants to perform, the number of exercise sets, the number of exercises in the set, the first threshold, the second threshold and the like, but are not limited thereto.

In operation S820, the controller may control the load generator based on the received user input. In one embodiment, the control unit receives and calculates input values related to the magnitude value of the load input by the user, the viscous force of the load, the elastic force of the load, and the inertial force of the load, and then operates the motor and the electro-hydraulic actuator according to the pre-stored control model. can be controlled Additionally, the controller may receive information related to a time when the user starts pushing the footrest from the electro-hydraulic actuator, and control the motor and the electro-hydraulic actuator based on the received information.

In step S830, the controller may receive information from the sensor module. In an embodiment, the information received from the sensor module may include, but is not limited to, information related to the position of the user's foot, information related to the force applied by the user's foot to the footrest, movement information of the footrest, and the like. In addition, the controller may receive information related to a time when the user starts pushing the footrest and information related to a time when the user finishes pushing the footrest from the sensor module.

In operation S840, the controller may display information related to exercise on the display based on the information received from the sensor module. In an embodiment, the controller may display information on the position of the user's foot and the force applied to the footrest on the display. Additionally, when the distance between the position of the user's feet and the predetermined position exceeds a first threshold, or when the difference in force applied by both feet of the user to the footrest exceeds a second threshold, a warning indication related to the above may be displayed on the display. can

9 is a schematic conceptual diagram of a smart leg press machine according to an embodiment of the present disclosure. 10 is a diagram illustrating a control method of a control unit applied to a smart leg press machine according to an embodiment of the present disclosure. As shown in FIG. 9 , the leg press machine may include a seat 910 , a load generating module 930 , a force action connection unit 920 and a control unit 960 . The seat 910 is a configuration in which the user's force is applied by pushing the footrest with the user's legs.

The load generating module 930 generates a load to be applied to the seat 910 . The load generating module 930 may include a load generating unit 940 for generating a load, and an elastic connecting unit 950 connecting the seat 910 and the load generating unit 940 .

The load generating unit 940 may generate a load acting on the seat 910 and may be configured to be operated by hydraulic or pneumatic pressure while being controlled by the controller 960 . According to an embodiment, the load generator 940 may include a hydraulic pump 942 and a hydraulic cylinder 944 as shown in FIG. 9 . At this time, the control unit 960 controls the movement of the rod 946 of the hydraulic cylinder 944 by controlling the hydraulic pump 942 or by adjusting the hydraulic pressure entering the hydraulic cylinder 944 from the hydraulic pump 942 . As an example of the load generator 940 controlled by the controller 960 in this way, an electro-hydraulic actuator (EHA) may be used.

The load generating unit 940 according to an embodiment is operated by hydraulic pressure and is configured to include a hydraulic pump 942 and a hydraulic cylinder 944, but the present invention is not limited thereto. That is, the load generating unit 940 only needs to be able to generate a load acting on the sheet 910 , and there is no particular limitation on its specific principle or configuration. That is, according to another embodiment, the load generating unit 940 may be operated by pneumatic or magnetic force, and may be operated by receiving hydraulic pressure or pneumatic pressure from a hydraulic pressure source or a pipe connected from a pneumatic source instead of a pump or a compressor. have.

The elastic connection part 950 receives a kinetic force applied to the entire sheet 910 , and receives a driving force as a load generated by the load generator 940 , so that the displacement of the elastic member included in the elastic connection part 950 is changed. It can be configured to be Here, the elastic member may be a spring, and the elastic connection part 950 including the elastic member that is a spring may be, for example, a series elastic actuator (SEA). In addition, the elastic connection part 950 may be moved in the left and right directions according to the driving force generated by the load generator 940 .

The force action connection 920 may include a fixed pulley, a movable pulley, and a cable. According to an embodiment, the movable pulley is disposed on one side of the elastic connection part 950 , and when the user moves the seat 910 , it is integrated with the elastic connection part 950 along a guide for guiding the movement of the elastic connection part 950 . It can be configured to move as The movable pulley can secure the maximum movement distance for the user to push the seat while reducing the volume of the smart leg press machine. Specifically, the movable length/stroke of the elastic connection part 950 itself is only 200 mm, so if it is pulled as it is through the cable in a 1:1 ratio, it is not possible to secure a sufficient length for the user to exercise. Therefore, the volume of the smart leg press machine can be reduced by increasing the movable length/stroke of the seat 910 using at least one movable pulley.

The cable connects the elastic connection part 950 and the seat 910 through the movable pulley and the fixed pulley. The cable connecting the movable pulley and the seat 910 may go through a plurality of fixed pulleys/moving pulleys for changing the direction or magnitude of the force.

The control unit 960 may be configured in various forms in the form of an electric circuit, a circuit board, an integrated circuit chip, software, firmware, etc. in order to perform arithmetic processing, storage and control functions, and the like, and the kinetic force received by the elastic connection unit 950 . The load generator 940 may generate a load based on the excessive driving force. Specifically, the control unit 960 calculates the mutual force due to the kinetic force and the driving force using the displacement change of the elastic member included in the elastic connection unit 950 , and the load generating unit 940 generates a load based on the calculated force. can be made to create In this case, the load generated by the load generator 940 may act on the cable.

The control unit 960 may be provided with an input device 970 including a touch panel, a keypad, a keyboard, and the like, and accordingly, the user can select and set an appropriate operation mode according to an exercise plan using the input device 970 . . In this case, the control operation may be finely adjusted by inputting additional control factors in each operation mode. Also, the input device 970 may be provided in the control unit 960 as described above, but the present invention is not limited thereto. That is, the input device 970 in the present invention may be provided in other components other than the control unit 960, for example, may be provided in the frame.

And the input device 970 is configured exclusively for the smart leg press machine, but the present invention is not limited thereto. In one embodiment, the input device 970 may be implemented in the form of software installed in a device such as a mobile phone or tablet possessed by the user. In this case, the user may drive software implemented in a device such as a mobile phone or tablet, and input a command to the controller 960 by wire/wireless using a wired communication unit or a wireless communication unit of the device such as a mobile phone or tablet.

In the storage device (memory) of the controller 960, control models according to various operation modes may be stored in advance, and the user sets the operation mode and the control model with the input device 970 and performs detailed control of each operation mode. The load generating unit 940 may be appropriately controlled by additionally inputting values of the factors.

In an embodiment, the user may set up an exercise plan in advance upon receiving advice from an exercise instructor or the like, set an operation mode accordingly, and input a command to the controller 960 using the input device 970 . At this time, the user determines whether to perform the basic type of the set operation mode as it is or whether to further adjust the set operation mode in detail, and then adds values of related factors to the control unit 960 when the set operation mode is further adjusted in detail. can be entered as Accordingly, the control unit 960 may receive the user's input value, calculate it, and then allow the load generation unit 940 to generate the initial load according to the pre-stored control model. When the user starts to exercise by pushing the seat 910 , the kinetic force applied by the user may be transmitted to the elastic connection part 950 through the force acting connection part 920 . In addition, the driving force generated by the load generating unit 940 may also be transmitted to the elastic connecting unit 950 according to the set operation mode to generate a load. At this time, a displacement change of the elastic member included in the elastic connection part 950 may occur, and a result of the displacement change of the elastic member measured by a sensor or the like may be transmitted to the controller 960 .

Accordingly, the control unit 960 calculates the mutual force Fh acting on the elastic connection part 950 by using the displacement of the elastic member. The mutual force Fh may be expressed by an equation using the displacement value of the elastic member as a variable, and the control unit 960 calculates the mutual force Fh based on the equation.

Also, the controller 960 sets an admittance model based on the calculated Fh. As shown in [Equation 1], the admittance model I(s) may be established including a plurality of factors. That is, the admittance model I(s) is established using virtual impedance factors M, C, and K. The values of M, C, and K are predefined according to the control model, or values of M, C, and K The user may input at least one of them to the controller 960 through the input device 970 . The controller 960 controls the load generator 940 to generate an appropriate exercise load according to the values of the specified or input factors.

The controller 960 may perform the control operation shown in FIG. 10 by using the admittance model I(s) of [Equation 1]. Specifically, the control unit 960 speed-controls the muscle strength exercise system G(s) using the speed controller C(s), and sets the admittance model I(s) based on the mutual force Fh in that state, An appropriate load is generated by driving the load generator 940 . In this case, the generated load may act in relation to each of the inertial force, the viscous force, and the elastic force, and may act in relation to a combined force of at least two or more of the inertial force, the viscous force, and the elastic force.

In addition, the controller 960 may generate an operation profile of the muscle strength exercise system G(s) based on the generated load to implement an isokinetic exercise mode, an isotonic exercise mode, and an isometric exercise mode. The control unit 960 according to this embodiment implements various exercise loads through the load generating unit 940 according to the operation mode, and the user pushes the seat 910 to deliver various exercise stimuli by the exercise load. Therefore, it is possible to maximize the exercise effect during strength training. Therefore, by using the smart leg press machine according to this embodiment, it is possible to plan and perform an optimal strength exercise program suitable for various users, such as the general public, athletes, and patients in need of rehabilitation treatment.

The smart leg press machine according to an embodiment may further include a body detection sensor 980 capable of measuring the user's body state. The body sensor 980 may measure a user's heart rate, body temperature, etc., for example, and an infrared sensor, a camera sensor, etc. may be applied. At this time, if it is determined that the user's body state value measured through the body sensor 980 is unreasonable to the user, the control unit 960 may limit the driving force through the torque controller T(s), that is, the seat 910 ) by lowering the load to be applied to the whole, it is possible to prevent injury to the user in advance. For example, when the heart rate measured by the body sensor 980 exceeds a preset heart rate (limit heart rate), the controller 960 may limit the driving force to a first set value or less. Here, the set heart rate and the first set value may be stored by a user input in advance through the input device 970 , and the first set value is a value smaller than the load initially generated by the load generator 940 . It is preferable to have In addition, the first set value may be smaller than the initially generated load by a specific value or a specific ratio, and may be greater than zero.

And, when the change value of the exercise force reaches the second set value (for example, when the user's force changes rapidly - the user's power is lost, etc.), the control unit 960 controls the driving force through the torque controller T(s). It can be limited to below the third set value. Here, the second set value and the third set value may be stored by a user input in advance through the input device 970 , and the third set value is a value smaller than the load initially generated by the load generating unit 940 . It is preferable to have In addition, the third set value may be smaller than the initially generated load by a specific value or a specific ratio, and may be greater than zero.

11 is a perspective view showing a structure in which the cable 1130 is connected to the smart leg press machine according to an embodiment of the present disclosure. 12 is a perspective view showing a state in which the seat 220 of the smart leg press machine according to an embodiment of the present disclosure is at the bottom. 13 is a perspective view showing a state in which the seat 220 of the smart leg press machine according to an embodiment of the present disclosure is at the top.

A smart leg press machine according to an embodiment of the present disclosure, as shown in FIGS. 11 to 13, constitutes a skeleton with a frame 210, and a control unit 730, an electro-hydraulic actuator 740, and a series elastic actuator on the inside. 750 , a force acting connection, and a guide 1140 along which the series resilient actuator 750 can move. The force action connection unit may connect the movable pulley 1110 , the fixed pulley 1120 , and the cable 1130 . In FIG. 11, the force action connection part includes a first movable pulley 1112_1, a second movable pulley 1112_2, a first fixed pulley 1122, a second fixed pulley 1124, and a third fixed pulley 1126. Although illustrated, the present invention is not limited thereto, and any number of the movable pulley and the fixed pulley may be used as needed.

In this embodiment, the cable 1130 may have one end connected to the seat and the other end fixed to the frame via a movable pulley 1110 and a fixed pulley 1120 . The fixed pulley 1120 may be fixedly disposed below the footrest of the frame 210 . The movable pulley 1110 may be disposed on one side of the series elastic actuator 750 and move together along the series elastic actuator 750 and the guide 1140 as the user moves the seat. At this time, the movable pulley 1110 and the fixed pulley 1120 may be arranged such that a plane orthogonal to the fixed axis of the movable pulley 1110 and a plane orthogonal to each fixed axis of the fixed pulley 1120 are perpendicular to each other. .

12 and 13 , the movable pulley 1110 may move along the guide 1140 together with the series elastic actuator 750 as the user moves the seat 220 . By such a configuration, it is possible to sufficiently secure the maximum movement distance that the user can push the seat while reducing the volume of the smart leg press machine. Specifically, the movable length/stroke of the movable pulley 1110 and the series elastic actuator 750 itself is only 200 mm, so if it is pulled 1:1 through the cable as it is, a sufficient length for the user to exercise is secured can not do. Therefore, by increasing the movable length/stroke of the movable pulley 1110 and the series elastic actuator 750 using the fixed pulley 1120 and the movable pulley 1110, the volume of the smart leg press machine can be reduced.

14 is a diagram illustrating an example of inputting information related to a user's exercise according to an embodiment of the present disclosure. Such information may be displayed on the display of the smart leg press machine, or may be displayed on the display of the user terminal (eg, smart phone) connected to the smart leg press machine. The first screen 1410 shows an example in which the user inputs related information in the 1RM (Repetition Maximum) test mode. As illustrated, the user may input information such as height, gender, and weight through the first screen 1410 .

In one embodiment, the control unit, in response to receiving a user input for executing the 1RM (Repetition Maximum) test from the user, all of the viscous force, elastic force and inertia force of the load to be given to the sheet generated by the load generating unit to the lowest level It can be set to (Low). In this case, the reason for setting all of the viscous force, elastic force, and inertial force of the load to be applied to the seat to the lowest level (Low) is to reduce the user's burden through pure force control during 1RM measurement and to perform accurate 1RM measurement. On the other hand, when admittance control (when all of the viscous force, elastic force, and inertia force of the load to be applied to the seat are not set to the lowest level (Low)) is applied, it is impossible to satisfy additional situations such as formulas or muscle use positions. there is a problem.

In one embodiment, the 1RM estimate varies depending on the exercise area and posture (eg, standard leg press, wide stance leg press, narrow stance leg press, high fit leg press, low fit leg press, single leg press, etc.). can be calculated.

In one embodiment, the controller may calculate an initial exercise load value for performing the 1RM test based on the user's input gender and weight, and [Equation 2] below. In the following [Equation 2], 1RM is an initial 1RM estimate or 1RM estimate, w is an exercise load value, and r is the number of times the user has exercised. Here, the estimated value of the initial 1RM may be set to 50% of the body weight in the case of a man and 30% of the body weight in the case of a woman. In addition, the control unit may calculate the initial exercise load value by setting the number of times the user exercised to 8 times. For example, if a man weighing 60 kg proceeds with the 1RM test, the initial 1RM estimate is 30 kg, and the control unit inputs r = 8 and 1RM = 30 in [Equation 2], and the initial exercise load value is 23 kg. can be calculated as

When the initial exercise load value is calculated, the control unit may output a message to the display instructing the user to exercise the maximum number of times with the corresponding weight. In this case, the initial exercise load value may also be provided to the user through the display. For example, the controller may output a message to the display to exercise the maximum number of times that can be exercised with a weight of 23 kg.

When the user completes the exercise by the maximum number of times the user can exercise with the initial exercise load value, the controller may calculate the user's 1RM estimate based on the number of times the user actually exercised and the initial exercise load value. For example, when the user exercised 9 times with the initial exercise load value of 23 kg, the control unit can calculate the user's 1RM estimated value as 30 kg by inputting w = 23 kg, r = 9 in Equation 2. In this case, the calculated 1RM estimate may be provided to the user through the display.

In one embodiment, when the user performs the exercise 10 times or more with the initial exercise load value, the 1RM test may be performed once again. This is because, when r = 10 or more, the reliability of the 1RM estimation formula is lowered. In this case, after taking a sufficient rest to the user, a message to proceed with the 1RM test again may be provided through the display. When performing the 1RM test again, the exercise load value may be reset based on the 1RM value estimated in the first 1RM test. For example, when a 60 kg man completes 15 exercises with an initial exercise load value of 23 kg in the first 1RM test and the 1RM estimate is calculated as 35 kg, by entering 1RM = 35, r = 8 in Equation 2, You can reset the exercise load value to 27 kg. When the user completes the exercise by the maximum number of exercises with the reset exercise load value, the 1RM estimate may be recalculated based on the number of times the user has exercised. For example, when the user completes the exercise 7 times with the reset exercise load value of 27 kg, the user's 1RM estimate may be recalculated as 33 kg.

In one embodiment, the control unit, in response to receiving a user input for executing the 1RM (Repetition Maximum) test from the user, all of the viscous force, elastic force and inertia force of the load to be given to the sheet generated by the load generating unit to the lowest level can be set to Here, the user's input may include information related to the user's weight and gender. The controller may determine the size of the load to be applied to the seat based on the user's weight and gender. In this state, the user may exercise the maximum number of times the user can exercise. When the user completes the exercise, the control unit calculates the user's 1RM value based on the size of the load applied to the seat, the user's exercise number, and the 1RM estimation model, and the calculated user's 1RM value can be displayed on the display. . Here, the 1RM estimation model is calculated based on [Equation 2], w is the size of the load to be applied to the seat, r may represent the number of exercise of the user.

In one embodiment, when the number of workouts of the user exceeds a preset threshold, the controller may calculate the size of a new load to be given to the seat based on the calculated 1RM value and 1RM estimation model of the user. In this case, the exercise may be performed as many times as the user can exercise with the new load size. When the user once again completes the exercise, the controller may calculate the user's corrected 1RM value based on the calculated new load size, the user's new number of exercises, and the 1RM estimation model. The control unit may display the calculated user's corrected 1RM value on the display.

In one embodiment, the controller may determine the user's current exercise level (or exercise skill level) based on the user's estimated 1RM value and/or the user's weight, and provide it to the user through the display. For example, based on the user's estimated 1RM value according to [Table 1] below, the user's current exercise level may be determined as at least one of Beginner, Novice, Intermediate, Advanced, and Elite. Below, the weight-to-weight ratio may be set differently depending on the type of exercise and posture.

Beginner Novice Intermediate Advanced Elite man 50% of body weight 80% of body weight 110% of body weight 140% of body weight 180% of body weight Woman 30% of body weight 50% of body weight 70% of body weight 100% of body weight 130% of body weight

In an embodiment, the controller may determine the exercise routine information based on the user's exercise goal, the user's measured 1RM value, and/or the user's weight. Specifically, the controller may determine an exercise routine including an exercise load value, the number of repetitions per set, the number of sets, and a rest time per set based on the above information. For example, according to [Table 2], the control unit can determine exercise routine information based on the 1RM value according to which exercise the user performs among 'muscle strength exercise', 'muscle hypertrophy exercise' and 'muscle endurance exercise'. have. In an embodiment, the controller may determine an exercise load value, the number of repetitions per set, the number of sets, and a rest time per set within the range of [Table 2] based on the user's current exercise level. For example, when the user's current exercise level is low, the exercise load value, the number of repetitions per set, and the number of sets may be set close to the lower end of the range, and the set rest time may be set closer to the upper end of the range. On the other hand, if the user's current exercise level is high, the exercise load value, the exercise set, the number of repetitions per set, and the number of sets may be set close to the upper end of the range, and the set rest time may be set closer to the lower end of the range. Alternatively, the control unit determines the exercise load value determined according to [Table 2], the number of repetitions per set, the number of sets, and the range of the set rest time based on which purpose the user performs the exercise and the measured 1RM value of the user. It can be provided to the user through a display, and the user can select a specific value within that range.

exercise KG Number of repetitions per SET number of SETs rest time per SET strength training 85% or more of 1RM 6 or less 2~6 sets 2-5 minutes hypertrophy exercise 67~85% or more of 1RM 6~12 times 3~6 sets 30-90 seconds muscle endurance exercise 67% or less of 1RM 12 or more 2-3 sets 30 seconds

The second screen 1420 represents an example in which the user inputs related information through a display or the like in the free exercise mode. As illustrated, the user may select a preset exercise course (power improvement, explosive strength improvement, maximum strength improvement, muscle hypertrophy, muscular endurance improvement, etc.) through the second screen 1420 . Alternatively, the user may manually select settings related to exercise through the second screen 1420 . The user may input set values for the size of the load (eg, 48 kg) and the characteristics of various loads through the second screen 1410 . The size of the load may be directly set by the user or may be a value automatically set by the control unit as a user-customized value. Load characteristics can include load viscous force, load elastic force, and load inertia force. Among the four stages, low (25%), middle (50%), high (75%), and very high (100%), respectively. can be set to one. Alternatively, each of the characteristics of the load may be set in a more granular step, or in a more simplified step, such as two or three steps.

Here, the viscous force of the load indicates a characteristic of the load that allows the user to feel a higher sense of weight as the user tries to perform the exercise at a higher speed. The elastic force of the load indicates the characteristics of the load that allows the user to feel a higher weight as the user pushes the seat more. The inertia force of the load represents the characteristic of the load that makes the user feel a higher weight when the same specific magnitude of force is applied to the seat in a stationary state than when a specific magnitude of force is applied to the seat in a dynamic state. In this case, more than one type of load may be applied to the seat at the same time.

The load value that the user wants to use for exercise is displayed as a number (for example, 48 kg), and the set value for various load characteristics is displayed in graphs and characters, but is not limited thereto, and the above information includes various types of numerical values, It may be displayed as a symbol, text, graph, or the like.

In addition, the user may input the number of exercise sets to be performed, the number of repetitions per exercise set, and the like through the second screen 1420 .

In one embodiment, the smart leg press machine may assist the user's exercise through an auxiliary mode that includes an auxiliary intensity for reducing weight and an auxiliary range for adjusting the area being supported. The user may select an exercise assistance mode through the second screen 1420 . For example, the user may select one of 'strong assistance', 'medium assistance', and 'weak assistance' as the exercise assistance mode as shown in [Table 3]. As shown in [Table 3], the exercise assistance function is divided into an auxiliary intensity to reduce weight and an auxiliary range to control the area being supported.

auxiliary mode secondary strength secondary range strong assistant twice the speed ratio 50-100% of the original weight middle secondary Same as speed ratio 70-100% of the original weight weak secondary half of the speed 85-100% of the original weight

In an embodiment, when a user inputs a desired exercise weight and performs an exercise, the controller may measure an average exercise speed of the first three times and set the corresponding value as the target speed. Thereafter, when the user's exercise speed is lower than the target speed, the controller may perform exercise assistance by adjusting the load weight according to the auxiliary mode set by the user. For example, if the current exercise speed is faster than the target speed, the specified exercise load value is not increased. However, if the user's current exercise speed is low compared to the target speed, the exercise load value is dynamically lowered based on the difference value. can That is, when the controller of the smart leg press machine determines that the user's current exercise speed has decreased by more than a predetermined threshold compared to the initial exercise speed, the size of the load to be applied to the seat is different according to the exercise assistance mode set by the user. can be reduced For example, when the user selects the exercise assistance mode as 'strong assistance', if the user's current exercise speed decreases by more than a predetermined threshold compared to the initial exercise speed, the user selects the exercise assistance mode as 'weak assistance' It is possible to reduce the magnitude of the load applied to the seat more than in the case of the case. In this case, the current movement speed may refer to the current movement speed of the sheet calculated by the controller, and the initial movement speed is the seat calculated by the controller while the user pushes the seat a predetermined number of times (eg, 3 times). may refer to the average moving speed of

In order to measure the moving speed of the sheet, the smart leg press machine may further include a third sensor module configured to continuously measure the distance or position of the elastic connection part along the guide for guiding the movement of the elastic connection part. have. The control unit may receive the movement distance value of the elastic connection part measured by the third sensor module, calculate the movement speed of the elastic connection part based on this, and calculate the movement speed of the sheet based on the calculated movement speed of the elastic connection part have. For example, when two movable pulleys are included in the force acting connection part, the moving speed of the seat may be calculated as four times the calculated moving speed of the elastic connection part.

The third sensor module according to an embodiment may continuously measure the moving distance of the elastic connection unit at regular intervals (eg, 0.1 second). The controller according to another embodiment may reset the measurement interval of the third sensor module in real time based on the calculated moving speed of the elastic connection part. For example, the measurement interval of the third sensor module may decrease as the calculated moving speed of the elastic connection part increases. That is, the measurement interval of the third sensor module is uniform or non-uniform, and is not limited to the above-described embodiment.

The third sensor module according to an embodiment may be configured to directly measure the moving distance or position of the sheet instead of measuring the moving distance of the elastic connector.

By measuring the user's exercise speed and controlling the real-time exercise load value when the exercise speed falls, the user sets the exercise assistance intensity and assistance range differently according to his or her exercise history, or the risk of injury through the exercise assistance mode can be minimized. In addition, it has the effect of being able to exercise with a personal trainer that can assist the user's exercise through the smart leg press machine, and can help muscle growth by increasing the number of exercises when strength is low.

The above-described method may be implemented as computer-readable codes on a computer-readable recording medium. The recording medium may continuously store a program executable by a computer, or may be temporarily stored for execution or download. In addition, the medium may be various recording means or storage means in the form of a single or several hardware combined, it is not limited to a medium directly connected to any computer system, and may exist distributed on a network. Examples of the medium include a hard disk, a magnetic medium such as a floppy disk and a magnetic tape, an optical recording medium such as CD-ROM and DVD, a magneto-optical medium such as a floppy disk, and those configured to store program instructions, including ROM, RAM, flash memory, and the like. In addition, examples of other media may include recording media or storage media managed by an app store that distributes applications, sites that supply or distribute various other software, and servers.

The method, operation, or techniques of this disclosure may be implemented by various means. For example, these techniques may be implemented in hardware, firmware, software, or a combination thereof. Those of ordinary skill in the art will appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the disclosure herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design requirements imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementations should not be interpreted as causing a departure from the scope of the present disclosure.

In a hardware implementation, the processing units used to perform the techniques include one or more ASICs, DSPs, digital signal processing devices (DSPDs), programmable logic devices (PLDs). ), field programmable gate arrays (FPGAs), processors, controllers, microcontrollers, microprocessors, electronic devices, other electronic units designed to perform the functions described in this disclosure. , a computer, or a combination thereof.

Accordingly, the various illustrative logic blocks, modules, and circuits described in connection with this disclosure are suitable for use in general purpose processors, DSPs, ASICs, FPGAs or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or the present disclosure. It may be implemented or performed in any combination of those designed to perform the functions described in A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, eg, a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other configuration.

In firmware and/or software implementations, the techniques include random access memory (RAM), read-only memory (ROM), non-volatile random access memory (NVRAM), PROM ( on computer-readable media such as programmable read-only memory), erasable programmable read-only memory (EPROM), electrically erasable PROM (EEPROM), flash memory, compact disc (CD), magnetic or optical data storage devices, etc. It may be implemented as stored instructions. The instructions may be executable by one or more processors, and may cause the processor(s) to perform certain aspects of the functionality described in this disclosure.

If implemented in software, the techniques may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. Storage media may be any available media that can be accessed by a computer. By way of non-limiting example, such computer readable medium may contain RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or desired program code in the form of instructions or data structures. may include any other medium that can be used for transport or storage to a computer and can be accessed by a computer. Also, any connection is properly termed a computer-readable medium.

For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, wireless, and microwave, the coaxial cable , fiber optic cable, twisted pair, digital subscriber line, or wireless technologies such as infrared, radio, and microwave are included within the definition of medium. As used herein, disk and disk include CD, laser disk, optical disk, digital versatile disk (DVD), floppy disk, and Blu-ray disk, where disks are usually magnetic. Data is reproduced optically, while discs reproduce data optically using a laser. Combinations of the above should also be included within the scope of computer-readable media.

A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium may be coupled to the processor such that the processor can read information from, or write information to, the storage medium. Alternatively, the storage medium may be integrated into the processor. The processor and storage medium may reside within the ASIC. The ASIC may exist in the user terminal. Alternatively, the processor and the storage medium may exist as separate components in the user terminal.

Although the embodiments described above have been described utilizing aspects of the presently disclosed subject matter in one or more standalone computer systems, the present disclosure is not limited thereto and may be implemented in connection with any computing environment, such as a network or distributed computing environment. . Still further, aspects of the subject matter in this disclosure may be implemented in a plurality of processing chips or devices, and storage may be similarly affected across the plurality of devices. Such devices may include PCs, network servers, and portable devices.

Although the present disclosure has been described in connection with some embodiments herein, various modifications and changes can be made without departing from the scope of the present disclosure that can be understood by those skilled in the art to which the present disclosure pertains. Further, such modifications and variations are intended to fall within the scope of the claims appended hereto.

110: user 120: smart leg press machine
122: footrest 124: display
126: exercise related information displayed on the display

Claims (17)

As a smart leg press machine,
a seat configured to allow a user to sit;
a frame provided with a first guide for guiding the movement of the sheet;
a footrest supported by the frame;
a load generating unit generating a load to be applied to the sheet;
a control unit configured to control the load generating unit;
a sensor module configured to detect the movement of the seat; and
A display configured to receive user input and output information related to exercise
including,
The control unit is
receiving a third user input associated with an exercise assistance mode from the user;
In response to determining that the user's current exercise speed has decreased by more than a predetermined threshold compared to the initial exercise speed, the size of the load to be applied to the seat is differently reduced according to the exercise assistance mode set according to the third user input make it,
Receive the user's initial exercise length from the sensor module,
Calculate the exercise recognition distance based on the initial exercise length,
If the user pushes the seat beyond the exercise recognition distance, it is recognized as one exercise,
In response to receiving a fourth user input for executing the 1RM (Repetition Maximum) test from the user, the viscous force, the elastic force and the inertial force of the load to be given to the sheet generated by the load generating unit are all set to the lowest level do,
Calculate the 1RM value of the user based on the size of the load applied to the seat, the number of exercise of the user and the 1RM estimation model,
Display the calculated user's 1RM value on the display,
When the number of workouts of the user exceeds a preset threshold, calculating the size of a new load to be given to the seat based on the calculated 1RM value of the user and the 1RM estimation model,
Calculating the corrected 1RM value of the user based on the calculated size of the new load, the number of new exercise of the user, and the 1RM estimation model,
The smart leg press machine, which is configured to display the calculated user's corrected 1RM value on the display.
According to claim 1,
The load generating unit,
a motor that generates an initial load; and
An electro-hydraulic actuator connected to the motor and configured to amplify the initial load to generate a load to be applied to the seat
including,
The smart leg press machine,
A Series Elastic Actuator connected to the electro-hydraulic actuator and comprising a plurality of elastic bodies configured to sense when the user starts pushing the seat.
Further comprising a, smart leg press machine.
3. The method of claim 2,
The control unit is
control the operation of the display;
receiving a first user input associated with a magnitude of a load to be applied to the seat from the user;
receiving information related to a time point at which the user starts to push the seat from the series elastic actuator;
The smart leg press machine, further configured to control the motor and the electro-hydraulic actuator based on the information related to the first user input and the time point.
4. The method of claim 3,
The control unit is
Receive a second user input associated with a viscous force, an elastic force, and an inertial force of a load to be applied to the seat generated by the load generating unit from the user,
The smart leg press machine, further configured to control the motor and the electro-hydraulic actuator based on the information related to the first user input, the second user input, and the time point.
delete 3. The method of claim 2,
a second guide for guiding the movement of the series elastic actuator; and
a sensor module configured to measure a distance that the series elastic actuator moves along the second guide
further comprising,
The control unit is further configured to continuously receive the measurement value from the sensor module to calculate the moving speed of the series elastic actuator, and to calculate the moving speed of the sheet based on the calculated moving speed of the series elastic actuator, smart leg press machine.
7. The method of claim 6,
The current movement speed is the current movement speed of the sheet calculated by the control unit,
The initial movement speed is an average moving speed of the sheet calculated by the control unit while the user pushes the sheet a predetermined number of times, a smart leg press machine.
3. The method of claim 2,
a force action connection unit configured to transmit the load generated by the load generating unit to the seat; and
A second guide for guiding the movement of the series elastic actuator
further comprising,
The smart leg press machine, wherein the force action connection includes a plurality of fixed pulleys, at least one movable pulley and a cable.
9. The method of claim 8,
The at least one movable pulley is disposed on one side of the series elastic actuator, and moves together along the series elastic actuator and the second guide as the user moves the seat,
The plurality of fixed pulleys are fixedly arranged under the footrest of the frame,
The cable has one end connected to the seat through the at least one movable pulley and the plurality of fixed pulleys, and the other end being fixed to the frame, a smart leg press machine.
10. The method of claim 9,
A plane orthogonal to a fixed axis of the at least one movable pulley and a plane orthogonal to each fixed axis of the plurality of fixed pulleys are perpendicular to each other, a smart leg press machine.
delete delete According to claim 1,
The 1RM estimation model is,
Calculating based on Equation 1, smart leg press machine.
(Formula 1)

{remind

is the magnitude of the load applied to the sheet,

is the number of workouts of the user}
According to claim 1,
The fourth user input is
Including information related to the user's weight and gender,
The size of the load applied to the seat is determined based on the user's weight and gender, smart leg press machine.
delete 15. The method of claim 14,
The control unit is
Based on the calculated user's 1RM value and the user's weight, calculating the exercise skill level of the user,
A smart leg press machine further configured to display the calculated user's exercise skill level on the display.
15. The method of claim 14,
The control unit is
in response to receiving the user's exercise goal, further configured to determine an exercise routine based on the user's exercise goal, the calculated user's 1RM value, and the user's weight,
The exercise routine is
A smart leg press machine, including the size of the load to be applied to the seat, the number of repetitions of the exercise per set, the number of sets and the rest time between sets.

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