ゴルフスイングにおけるインパクト姿勢に関する研究

抄録

It is investigated that how golfers control their arms and clubs for achieving almost the same postures at the impact although they have the various positions at the start of the wrist turn. The golfer's arm and club were modelled with the double pendulum model. Down swing was divided into the two periods, the first period is before the wrist turn in which the arm and club behave together and the second period is during the wrist turn in which the arm and club behave with a joint of the wrist. The effect of swing parameters on the postures of arm and clubs at the impact were investigated by the theoretical and modal analysis, and numerical simulation. It was found, as the results, that the reduction of the low arm and wrist torque during the wrist turn decreases the delay of the club against the arm at the impact. Therefore it is considered that golfers can control their postures of arms and clubs at the impact by appropriately controlling above parameters although they have the various positions at the start of the wrist turn.