3702 装着型センサによる投球時上肢の動作解析(S55-1 生物医学工学における計測と制御(1),21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

概要

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In this paper, we propose a measurement method of three-dimensional (3D) upper limb movement during pitching motion using the body-mounted sensor (3D sensor). The sensor is composed of 3D accelerometer and gyroscope with higher and lower sensitivity. Two 3D sensors are attached on the forearm and the upper arm to estimate 3D location and angle of upper limb by the numerical integration of the measured acceleration and angular velocity. Also touch sensor is applied to ball to investigate the angle of the elbow at release point. The results of the pitching experiment show that 3D trajectory and angles of the forearm and the upper arm estimated by the 3D sensors agree with that measured by the optical motion capture system with the correlation coefficient of more than 0.90. Future challenges of this study are to precede accuracy improvement and downsizing of the sensor system that can be used for actual pitching training.
一般社団法人日本機械学会の論文
2008-08-02