골프 아이언클럽 다운스윙시 하지관절모멘트 변화 분석

The purpose of this study was to investigate joint moment of lower body segments on teaching pro-golfers. Three dimensional swing analysis was conducted on the three subject was asked to swing with 7-iron, where two force plates were built, with his normal speed and tempo. The resultant joint moments of the lower extremities were computed using the kinematic variables of the segments, anthropometric measures and the ground reaction force data. Based on the results of this study, the following conclusions were; Fisrt, The left ankle joint was revealed inversion-moment from backswing-top to follow-throw. and, the right ankle joint was revealed adduction-moment from down swing vertical position of the club head to Follow-throw horizontal of the club head. Second, The left knee joint was revealed maximal external rotation moment on back swing top position. But, the left knee joint was not revealed internal rotation & external rotation moment on impact. The right knee joint was revealed maximal extension moment during center of mass move to right foot on back swing top position. Third, The left hip joint was revealed abduction moment during downswing. The right hip joint was revealed maximal internal rotation moment on back swing top position. and slowly reduced internal rotation moment to impact.