Extraction of common points of golf swing using exerted torque

Abstract

Golf is not only a sport to compete for scores, but also to enjoy the comfort of a good shot. In order to hit a good shot, it is important to use a golf club that is appropriate for the golf swing. Therefore, various previous studies on the golf swing have been conducted. It is also necessary to find commonalities among golfers in order to improve the golf swing. The authors extracted common features of angular velocity and acceleration waveforms during golf swing motion in participants who showed common features of shaft deformation behavior in a previous study. The purpose of this study is to extract common points of golf swing motion using torque data exerted during the golf swing motion. First, the golf swing motion was measured, and the torque data exerted during the golf swing motion was calculated. Next, singular value decomposition was performed on the observation matrix consisting of the torque data of all participants to determine the number of modes to represent the torque data. A cluster analysis was performed using the right singular vector for the determined modes, and the participants were classified into a small number of groups. Finally, by comparing the swinging motion between the groups, we found that the swing planes were different.