Korean Journal of Applied Biomechanics (한국운동역학회지)

Korean Society of Applied Biomechanics (한국운동역학회)
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Kinematic Skill Analysis of the Turn Motion and Release Phase in Female Hammer Throw

여자해머던지기 턴 동작과 투사국면에 대한 운동학적 기술 요인 분석

  • Chung, Nam-Ju (Division of Sport Science, College of Environmental Science and Engineering, Honam University) ;
  • Kim, Jae-Pil (Department of Sport and Leisure Science, College of Humanities and Arts, Sunchon National University) ;
  • Song, Ok-Heung (Department of Physical Education, Graduate School Education, Sunchon National University)
  • 정남주 (호남대학교 환경이공대학 스포츠레저학과) ;
  • 김재필 (순천대학교 인문예술대학 사회체육학과) ;
  • 송옥흥 (순천대학교 인문예술대학 사회체육학과)
  • Received : 2010.10.31
  • Accepted : 2010.12.26
  • Published : 2010.12.31
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Abstract

The purpose of this study was to analyze the kinematic factors and throwing variables for the 3-turn and 4-turn techniques and for release as well as to provide technical advice for improving athletic performance in hammer throwing. Data analysis led to the following conclusions: To increase the rotation speed for the 3-turn and 4-turn techniques, the time elapsed during the 1-foot support period should be decreased the distance between the rotating foot and the rotation axis should be small and the height of the hip joint should be increased at the times of release The throwing angle at the moment of release should be more than 40 degrees, and the throwing position should be taken vertically high at the shoulder joints. To accelerate the motion of the hammer, the speed should not be reduced during the 1-foot support period but should be increased during the 2-foot support period for much greater acceleration. In the 3-turn technique, the angles of the shoulder axis and hummer string should be dragged angle at the maximum point and lead angle at the minimum point, and dragged angle at the maximum and minimum points in the 4-turn at the time of relase The upper body should be quickly bent backward, the knee angle should be extended, and the angles of the shoulder axis and hammer string should be dragged angle close to 90 degrees.

Keywords

References

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