バレーボールにおけるサーブレシーブと動作時間及び構えとの関係

概要

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This study was purposed to get some knowledges for coaching serve-receive skills by following investigations. 1) Investigation into relation between evaluation of serve-receive performance, which were graded as A, B, and C, and three motion phases of serve-receive. 2) Investigations into relation between three motion phases of serve-receive and stances for receiving at the preparatory phase or adjustment motions. Followings were revealed. 1) Receivers begun to move significantly earlier in performances which were evaluated as grade A than in grade B and C performances. 2) Receives' reaction time at the response phase, who took receiving stances before servers begun their serving motion, were shorter than receivers' reaction time, who took receiving stances after services were delivered. 3) In more receive performances which were evaluated as grade A, receiver took their stances for receive before serves were delivered compared with performances of grade B and C. 4) In receive performances of grade A than in grade B and C performances, and receive performances of grade B than in grade C performances, receivers did not move unnecessary for adjustment at the ball-contact. Performances in which receivers took movements for adjustment. 5) In receiving performances without movements for adjustment, reaction time for beginning the receiving motion was shorter than in receiving performances with them.