骨導音センシングシステムを用いたテニスのボレー動作の計測

抄録

For effective acquisition of motor skills, proper internal force control is important in addition to posture. Although motion capture systems and force plates are generally used to measure and evaluate movement, accurate measurement of internal force is difficult. We aim to establish a method to measure mechanical properties and estimate internal force by analyzing bone-conducted sound propagating through the body. In this paper, we report on the measurement of vibrations propagating through the upper arm when the ball strikes the racket in the tennis volleying motion, and the differences depending on the grip of the racket and the degree of skill of the subject. The experimental results indicate that there is a difference in the vibration characteristics between experienced and inexperienced players.