文章基本信息

标题：ハンマー投における高重量ハンマーによる投てきのキネマティクス的特性：レジスティッドトレーニングとしての利用法の検討
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作者：広瀬健一 ; 大山卞圭悟 ; 藤井宏明等
期刊名称：体育学研究
印刷版ISSN：0484-6710
电子版ISSN：1881-7718
出版年度：2016
卷号：61
期号：1
页码：75-89
DOI：10.5432/jjpehss.15056
出版社：Japan Society of Physical Education, Health and Sport Sciences
摘要：The purpose of this study was to investigate the kinematics of the throw with the competition hammer (7.26 kg) and the heavier hammer (8.0 kg). Sixteen male hammer throwers threw hammers of both weights at maximum effort. Utilizing 3 high-speed video cameras (300 fps), three-dimensional coordinates of the hammer head and 25 landmarks on the body were obtained by the direct linear transformation method. Hammer head velocity and distance thrown with the heavier hammer were significantly lower than for the throw with the competition hammer. Durations of the turn and double support phase (DSP) in the throw with the heavier hammer were significantly longer than with the competition hammer. Focusing on changes in the velocity of the hammer head, the duration of acceleration with the heavier hammer during the 1st and 2nd turns was longer than for the competition hammer. The Y component of displacement of the center of gravity for the heavier hammer was longer in every phase than for the competition hammer. These results suggest that the throw with the heavier hammer can be an effective training method for acquiring a longer movement of the center of gravity toward the throwing direction during the DSP and longer acceleration of the hammer head.
关键词：throwing events;投てき競技;three-dimensional motion analysis;3 次元動作分析;double support phase;両足支持局面