MUSCULAR ACTIVITY VISUALIZATION SYSTEM AND MUSCULAR ACTIVITY VISUALIZATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a system capable of visualizing a muscular activity of a muscle with a simple structure.;SOLUTION: A muscular activity visualization system includes a distance image camera 20 for measuring a three-dimensional posture of a subject 10, a calculation part 30 for estimating a muscular activity amount of the subject from the data measured with the distance image camera, and display means 40 for displaying the estimated muscular activity amount superimposing it on an image of the subject. The calculation part 30 acquires a joint position of the subject 10 from the data of the distance image camera 20, calculates a center-of-gravity position from the joint position and a mass of the subject, obtains a ZMP using the center-of-gravity position and the acceleration of the center of gravity, and calculates floor reaction force. It also calculates a joint angle from the data on the joint position, and calculates joint torque using the angle and the floor reaction force. It obtains the origin and stop position of an object muscle, estimates muscle length, determines the presence or absence of a muscle activity based on the magnitude of the muscle length, and calculates a muscle activity amount proportional to the joint torque when there is a muscle activity.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2017,JPO&INPIT