A-5 ゴルフスイングにおける下肢の動作特性(ゴルフ)

概要

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The purpose of this study was to understand characteristic of lower limb in golf swing by relationship between movements of knee and hip, and hip joints' torque. Four right-handed professional golfers used their own drivers to hit standard golf balls in our laboratory. The swing motions were recorded using a 3D optical motion capturing system with a 200Hz frame rate, and three-dimensional ground reaction forces were captured by two force plates operating at 1000Hz on the ground. The hip joints' torque was calculated using these sets of data. Also the rotational angle of hips and the knees and the angular velocity of the hips and knees were calculated as kinematic data. In this study, the golf swing time was divided into two phases on the basis of the hips' rotational angle. As for the results, the rotational angle of hips and the knees became parallel to the X-axis at the approximately same time, and the angular velocity of hips coincidentally reached a maximum value in the middle of forward swing. Particularly the two torques of the left hip joint were continuously exerted in the beginning of the forward swing, and then these torques started to decrease after the peak. This suggested that left hip joints were effective at promoting the rotational movement of the pelvis during the golf swing.
一般社団法人日本機械学会の論文
2009-12-02