バレーボールのスパイクにおける跳躍距離に関する研究 : 中垣内祐一選手のスパイクの場合
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The broadjump technique of volleyball spike : A case study of the spiking motions of All-Nippon Yuuichi Nakagaichi
Sports and physical training
The purpose of this study was to kinematically investigate the spiking motions of All-Nippon super ace Yuuichi Nakagaichi who hit from frontcourt and from backcourt, and to collect the informations of broadjump spiking technique. The male players who participated in 1994 Nippon Volleyball League Final Games between Nippon Steel versus Suntory held in Hiroshima were filmed at 100 f.p.s. with two 16mm cinecameras. 22 three dimensional coordinates for the segment endpoints and a ball from the start of the take off to the end of the swing in the air were computed by the Direct Linear Transformation Method. The results and findings were summarized as follows : 1)The broadjump length of backcourt spikings was almost twice as large as that of frontcourt spikings, and significantly correlated with the horizontal velocity of CG at the take off. 2) The ball velocity just after the impact, the finger height from the court floor at the impact, and the jumping height of backcourt spikings were almost the same size of frontcourt spikings. 3)The CG height at the take off and the angular displacement from the start of the take off to the end of the backward swing in the air of bakcourt spikings were much larger than those of frontcourt spikings. This suggested that extending the range of upward swing motion should be one of the important motions in increasing the jumping height with the heigh speed approach run.
広島体育学研究 : Hiroshima Journal of Physical Education
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Graduate School of Integrated Arts and Sciences