한국운동역학회지 (Korean Journal of Applied Biomechanics)

  • 제21권5호
  • /
  • Pages.653-660
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  • 2011
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  • 1226-2226(pISSN)
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  • 2093-9752(eISSN)
한국운동역학회 (Korean Society of Applied Biomechanics)
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2011 대구 세계육상선수권 대회에 참가한 한국 남자 창던지기 선수와 입상자들의 3차원 운동학적 비교 분석

Three-dimensional Comparison of Selected Kinematics between Male Medalists and Korean Male Javelin Thrower at the IAAF World Championships, Daegu 2011

  • 채원식 (경북대학교 사범대학 체육교육과) ;
  • 윤창진 (경북대학교 사범대학 체육교육과) ;
  • 임영태 (건국대학교 자연과학대학 스포츠과학부) ;
  • 이행섭 (경북대학교 대학원 체육학과) ;
  • 김동수 (경북대학교 대학원 체육학과)
  • Chae, Woen-Sik (Department of Physical Education, College of Education, Kyungpook National University) ;
  • Yoon, Chang-Jin (Department of Physical Education, College of Education, Kyungpook National University) ;
  • Lim, Young-Tae (Division of Sports Science, College of Natural Science, Konkuk University) ;
  • Lee, Haeng-Seob (Department of Physical Education, Graduate School of Kyungpook National University) ;
  • Kim, Dong-Soo (Department of Physical Education, Graduate School of Kyungpook National University)
  • 투고 : 20110931
  • 심사 : 2011.12.23
  • 발행 : 2011.12.31
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초록

The purpose of this study was to compare selected kinematic variables between male medalists and a Korean male javelin thrower at the IAAF World Championships, Daegu 2011. The three medalists and one Korean javelin thrower that participated in the Championships were videotaped using three high-speed cameras (300 frames/s, EX-F1 Exilim, Casio, Japan). The results showed that the release and attitude angles of the Korean male javelin thrower (KMJT) were greater than that of the medalists, whereas the attack angle of the KMJT was smaller than that of the medalists. This study also found that the KMJT clearly had a lower release height than the medalists. As a possible adaptation of his physique to the skill, the KMJT used a small trunk inclination angle and produced greater inclination angles at his upper extremities. These results may be linked to an increase in the release angle of the KMJT. There were some difference between the KMJT and the medalists in terms of the length and duration of the delivery phase. In harmony with the shorter length of the delivery phase, its duration was shorter for the KMJT in comparison to the medalists. Because the delivery stride is considered to be a primary generator of endpoint speed, this decrease in the delivery phase time would decrease the javelin velocity at release. The amount of time taken in the delivery phase may be a critical factor to enhance a javelin thrower's performance. Thus, rhythmic movement training specifically designed for the KMJT will help him attain an optimal throwing position.

키워드

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피인용 문헌

  1. The Relationship between the Distance and Kinematical Parameters of Javelin in Korean Male Javelin Throwers vol.24, pp.3, 2014, https://doi.org/10.5103/KJSB.2014.24.3.217
  2. The Kinematic Characteristics of Javelin in Korean Male Javelin Throwers Following Rank vol.23, pp.2, 2013, https://doi.org/10.5103/KJSB.2013.23.2.099