지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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The purpose of this study was to analyze kinematic factors at each turn and technique parameters in order to determine throw distance of Yun-Chul Lee, a national team player(height: 1.88m, body mass: 122kg, record: 71.79m, career: 14yrs). Three-Dimensional motion analysis for successful 60m trails using 5 video cameras(sampling frequency: 30Hz) for this study was performed, For the analysis of the kinematic factors at each turn, Kwon3D version 3.1 and Matlab R2009a program were used. As the number of turns increased, the results showed biomechanical characteristics as following.
The single and double support time shorted as the number of turns increased. However, because the single support time in turn 3 and 4 showed a similar support time, the player appeared not to generate centripetal opposing to centrifugal force during the delivery phase. To obtain the rotation velocity, the player appeared that the orbit angle must increase a bigger angle gradually as the number of turns increased. Furthermore, trunk lean angle needs to sustain a erected posture at a vertical axis in order to generate centripetal opposing to centrifugal force while maintaining the lengthened radius, Additionally the knee angle of axis leg at the low point needs to pivots approximately 90 degree in order to it. In the velocity factors, the initial velocity after the preliminary wind swing showed relatively a slow velocity, while the velocity difference between the low point and high point showed a big decrease velocity of about 5-6m/s during each turn.
목차
등록된 정보가 없습니다.
참고문헌 (7)
참고문헌 신청
김태삼 / 2011 / 남자 해머던지기 시 각 회전 별 역학적 특성과 투사 요인 분석 / 한국운동역학회지 21(2):141~152
최대우 / 1986 / 해머 길이 변화가 기록에 미치는영향 / 충남대학교 체육과학연구소 논문집 4(1):136~139
Gutierrez-Davila, M. / 2002 / A biomechanical analysis of the individual technique of the hammer throw finalists in the Seville Athletics World Championship 1999 / New Studies in Athletics 17(2):15~26
Maroński, R. / 1991 / Optimal distance from the implement to the axis of rotation in hammer and discus throws / Journal of Biomechanics 24(11):999~1005
Mizera F. / 2002 / Influence of environmental factors on shot put and hammer throw range / Journal of Biomechanics 35(6):785~796
최대우 / 1986 / 해머 길이 변화가 기록에 미치는영향 / 충남대학교 체육과학연구소 논문집 4(1):136~139
Gutierrez-Davila, M. / 2002 / A biomechanical analysis of the individual technique of the hammer throw finalists in the Seville Athletics World Championship 1999 / New Studies in Athletics 17(2):15~26
Maroński, R. / 1991 / Optimal distance from the implement to the axis of rotation in hammer and discus throws / Journal of Biomechanics 24(11):999~1005
Mizera F. / 2002 / Influence of environmental factors on shot put and hammer throw range / Journal of Biomechanics 35(6):785~796
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