円盤投における高い初速度獲得のための動作要因間の因果関係  [in Japanese] Causal relationships among motion factors for achieving a high release velocity in the discus throw  [in Japanese]

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Author(s)

    • 前田 奎 Maeda Kei
    • 筑波大学大学院人間総合科学研究科 University of Tsukuba, Graduate School of Comprehensive Human Science
    • 関 慶太郎 Seki Keitaro
    • 筑波大学大学院人間総合科学研究科|日本大学文理学部|ユヴァスキュラ大学スポーツ健康科学部 University of Tsukuba, Graduate School of Comprehensive Human Science|Nihon University, College of Humanities and Sciences|University of Jyväskylä, Neuromuscular Research Center, Faculty of Sport and Health Sciences
    • 水島 淳 Mizushima Jun
    • 筑波大学大学院人間総合科学研究科 University of Tsukuba, Graduate School of Comprehensive Human Science

Abstract

The purpose of this study was to investigate, using path analysis, causal relationships among motion factors for achieving a high release velocity in the male discus throw. The throwing motions of 61 male discus throwers were analyzed using three-dimensional motion analysis. Variables such as release velocity, velocities gained by each body segment, body segment velocity, body angle and angular velocity were obtained. The path model indicating the causal relationships among these factors was constructed by path analysis. <br> The main results were as follows:<br> Influences of velocities gained by each body segment on release velocity were largest for the arm, followed in order by the trunk and legs.<br> Motion factors such as weight shift, acquisition of the velocity of the center of gravity, sweeping the legs, rotations of the hip and shoulder, twisting and untwisting of the trunk, acquisition of the velocity of the right knee and extension of the left knee had direct or indirect influences on the velocities gained by each body segment.<br> Motion factors in the path model revealed causal relationships along the time sequence of the throwing motion. In addition, the path model in this study indicated the cause and effect structure of the throwing motion by which Japanese male discus throwers were able to achieve a high release velocity. The results of this study can be utilized for technical coaching of the discus throw based on causal relationships.

Journal

  • Taiikugaku kenkyu (Japan Journal of Physical Education, Health and Sport Sciences)

    Taiikugaku kenkyu (Japan Journal of Physical Education, Health and Sport Sciences) 64(1), 21-36, 2019

    Japan Society of Physical Education, Health and Sport Sciences

Codes

  • NII Article ID (NAID)
    130007666538
  • NII NACSIS-CAT ID (NCID)
    AN00409623
  • Text Lang
    JPN
  • ISSN
    0484-6710
  • NDL Article ID
    029797793
  • NDL Call No.
    Z7-293
  • Data Source
    NDL  J-STAGE 
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