FR3109878A1 - Device for determining the dial of an individual's movement - Google Patents

Abstract

Device for determining the dial of the movement of an individual The invention relates to a device for measuring the dial of the movement of an individual. It consists of a system and a method of calculation. The system consists of a measurement tool and an information processing system. The information processing system communicates with the measurement tool and allows the calculation method to apply. The individual is then informed by his dial of the movement using sensory information given by the information processing system. The device according to the invention is intended to determine the dial of the movement of an individual in all possible dynamic or static situations, on a stable or unstable surface and with possible interfacing between the individual and the environment in which he operates. Figure for abstract: Fig 2

Description

Device for determining the dial of an individual's movement

The present invention relates to the determination of the dial of the movement of an individual using a device comprising a system and a calculation method. The system consists of a measurement tool and an information processing system. The information processing system communicates with the measurement tool and allows the calculation method to be applied. The individual is then informed of his movement dial using sensory information (visual, tactile or auditory) given by the information processing system.

There are many measurement tools that can capture movement such as the force platform, the pressure platform, the pressure pads, the camera, the accelerometer or the inertial unit.

There are many algorithms for reconstructing the position of the center of mass and the center of pressure during movement.

There are many reproducibility analyzes that can validate these measurement tools as well as these algorithms.

Balance and coordination are unique to each individual. Everyone has their preferences in the transverse, frontal and sagittal planes.

These preferences in each of the three planes interact to give the best balance and coordination in an individual, whether in a static position or in motion.

No method has yet made it possible to determine the positions of equilibrium and the optimal trajectories of the center of mass and pressure of an individual according to his preferences in the three planes of space.

The dial of the movement gives the positions of best balance and coordination as well as the trajectories of the center of mass and the center of pressure of the individual.

The dial of the movement establishes that four positions can be favoured: front right, front left, rear right, rear left.

The movement dial gives the hierarchy of preferential positions according to an appropriate tracking system. For example, the number 1 indicates: 'the first preferential zone', that is to say the one where the person has the maximum skills to ensure his balance and the reproducibility of his movements. Zones 2 and 3 follow. Until reaching zone 4, which indicates the zone in which the person has very limited skills to ensure balance and reproducible movements.

In the frontal plane, zone 1 is located in the part of the dial that corresponds to the presence of the best skills on the side of the body most aligned vertically

In the sagittal plane, zone 1 is located in the part of the dial which corresponds to the presence of the best skills in the muscles located on the opposite side, i.e. at the front of the body for a zone 1 positioned at the back of the dial and at the back of the body for a zone 1 positioned at the front of the dial.

For a zone 1 located in the front space, the dial of the movement gives zone 4 in the part of the dial which gives the most competence to the most vertically aligned side of the body (frontal plane) and the least competence in the front or back space (sagittal plane).

For a zone 1 located in the rear space, the dial of the movement gives zone 4 in the part of the dial that gives the least skills to the most vertically aligned side of the body (frontal plane) and the least skills in the front or back space (sagittal plane).

For a zone 1 located in the front space, zones 2 and 3 are located in the part of the dial that gives the least competence to the most vertically aligned side of the body (frontal plane).

For a zone 1 located in the rear space, zones 2 and 3 are located in the part of the dial that gives the most or the least competence to the side of the body most aligned vertically (frontal plane).

Starting from a front or rear position of zone 1, the respective front or rear positions of zones 2 and 3 depend on the overall skills of extension or flexion of the body in the three planes. Bodies more competent in extension induce a point 2 located in the front space. Bodies more proficient in flexion induce a point 2 located in the rear space.

The trajectories of the centers of mass and pressure are defined in the hierarchical order of the points on the dial, from 1 to 4.

Any difficulty in identifying the presence and reproducibility of the zones of equilibrium and of the preferential trajectories of the centers of mass and pressure refers to an environmental constraint (characteristics of the ground, unevenness, etc.) or to a bodily constraint (injury, levels of energy, particular anatomical characteristic such as the presence of a short leg, etc.).

Analyzes carried out from readings in controlled or uncontrolled situations make it possible to differentiate the origin of the constraints thus exerted.

visually represents the blank movement dial.

represents an example of a dial of the movement visually for an individual having its point 1 at the top right, its points 2 and 3 respectively at the top left and bottom left and its point 4 at the bottom right.

shows an embodiment of the invention with an accelerometer placed at the level of the sacrum as a measurement tool and a multifunction mobile as an information processing system. The latter makes it possible to apply the calculation method and then to inform the individual of his dial of the movement by visual means.

detailed description

One embodiment of the invention has, with reference to the , an accelerometer (1) placed at the level of the individual's sacrum and a multifunction mobile (2).

The accelerometer (1) constitutes the measurement tool and makes it possible to capture the movement of the individual.

The multifunction mobile (2) constitutes the information processing system. It communicates with the accelerometer (1) in order to reconstruct the position of the center of mass and the center of pressure during the movement.

The multifunction mobile (2) allows, once the movement has been picked up and the calculation is finished, the individual to obtain his dial from the movement once the calculation is finished.

The device according to the invention is intended to determine the dial of the movement of an individual in all possible dynamic or static situations, on a stable or unstable surface and with possible interfacing between the individual and the environment in which he moves.

Claims (2)

Device for determining the dial of an individual's movement,
Said device comprising:

• a) a system that consists of:
  • a1) a measuring tool (1)
  • a2) an information processing system (2)
• b) a calculation method

Characterized in that

• a) The information processing system:
  • a1) communicates with the measuring tool
  • a2) allows the calculation method to apply
  • a3) informs the individual of his dial of the movement using sensory information

Device according to Claim 1, characterized in that the information processing system (2) is configured to perform an interface with the environment in which the individual moves, on a stable or unstable surface, in static or dynamic.