S9 ゴルフスウィング時の上肢各関節における発揮トルク(ゴルフ(2))

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The roles of the upper extremities during golf swing are transfer of the energy generated by the lower extremities into a golf club and control the club head to place in a hitting point. Since the golf club is manipulated by both hands in swing motion, the upper extremities and the club make a closed multi-segment loop. Therefore it is impossible to determine the forces and moments acting on the club by each hand with only visual information of motion of the club. The purpose of this study was to investigate three dimensional kinetics of each joint using an instrumented golf club to measure forces and moments exerted on the grip handle of the club. Two professional golfers participated in the experiments. The positions of markers of the body segment endpoints and the club were captured with VICON motion analysis system operating at 250Hz. A personal computer was used to store the strain gauge signals that were amplified through dynamic strain amplifiers. Kinetic analyses of joints were realized with inverse dynamic solution with the data obtained by the instrumented club. From the results with number 5 iron club, the shoulder joints acted large torques during forward swings, but the wrist joints did not act large torques. The elbow joints acted large torque around flexion/extension axis in left arm. These results showed that not only the left upper limb but also the right upper limb make important roles during golf swing.
社団法人日本機械学会の論文
2005-09-10

S9 ゴルフスウィング時の上肢各関節における発揮トルク(ゴルフ(2))

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