740 バドミントンラケットグリップの握り易さの評価 : グリップの形状と接触面積および手関節可動域との関係

概要

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This study investigated the evaluation of easiness to grasp grips of hand-made and of ready-made badminton rackets by means of the measurement of movable angle at wrist joint and EMG activity during racket swing motion for two minutes. The wrist joint movement were palmar-flexion, dorsi- flexion,ulnar- flexion, and radial- flexion, and the swing motion were forehand and backhand swing. Grip strength afrter continuous swinging hand-made racket was lager than that after swinging ready-made racket. EMG activity in grasping hand-made racket did not increase, but that in grasping ready-made racket increased. In grasping the hand-made racket, the movable angle of wrist joint was expanded in radial-flexion, compared with grasping the ready-made racket.
2007-09-25