〈実践研究〉バレーボールにおける一流センタープレイヤーのハンズ・アップに関する研究 : 量的および質的両側面からの複合的検討

This study was conducted to gain a compositive and holistic understanding of the blocking tricks employed by elite center position volleyball players to "discontinue the excessive use of \u27hands up\u27 blocking and employ arm swing jumps." In pursuit of this, we employed a sequential exploratory strategy in addition to using observational evaluation criteria to examine how players "discontinue the excessive use of \u27hands up\u27 blocking and employ arm swing jumps" from both quantitative and qualitative aspects. The results were as follows.- A qualitative (sensory) trick to "discontinue the excessive use of \u27hands up\u27 blocking and employ arm swing jumps" involved blocking by holding the hands up around the shoulders and face, while a quantitative (actual movement) trick also mostly involved blocking by holding the hands up around the shoulders and face. This supported the findings obtained using a qualitative examination method.- When Mr. Tomimatsu performed \u27hands down\u27 blocking, results suggested a blocking sensation that was difficult to extract quantitatively.- Tricks to "discontinue the excessive use of \u27hands up\u27 blocking and employ arm swing jumps" were found to manifest as different movements in actual volleyball matches based on an examination of two research participants

<原著論文>大学選手およびV リーグ選手のバレーボールにおけるスパイクの打ち分け : A クイックに着目して

This study aimed to obtain useful suggestions for coaching, by clarifying the characteristics of changing the direction of A quick, by motion analysis. On applying motion analysis to a total of 6 middle blockers in university, or men`s V・ Challenge League specializing in quick attack, it was found that there was a difference in changing direction of A quick. This study obtained useful suggestions for coaching due to the above. To change the direction of A quick, there are three important methods: 1. changing direction by movement of the trunk rather than the shoulder joint, and shifting the impact point by half on the ball indirection in which the player wants to hit. 2. In case the player wants to hit the ball to cross, twisting the player’s body largely backward from takeoff to taking back and shifting the impact point to the right side, rather than hitting by turning, and stooping the trunk to transmit force to the ball for impact. 3. In case the player wants to hit the ball by turning, he does not twist his body backward from takeoff to taking back and shifting the impact point to the left side, rather than hitting to cross, without stooping the trunk in order to obtain space for swinging, and bending the trunk to the left, in order to transmit force to the ball