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 long jump motions of 8 finalists in the women's long jump at the IAAF World Championships, Daegu 2011 were analyzed, and the kinematic characteristics of their techniques were investigated. The kinematic characteristics of the long jump motion of the 8 finalists were as follows. In the run-up phase, the length of the 2 stride was $108{\pm}6.92%$ that of the 3 stride. The length of the 1 stride was $91{\pm}5.78%$ that of the 2 stride. The change in the height of the center of gravity was $0.07{\pm}0.03$ m. The maximum velocity during the run-up phase was $9.44{\pm}0.13$ m at the 1 stride. In the take-off phase, the horizontal velocity, vertical velocity, reduction in horizontal velocity were $7.80{\pm}0.15$ m/s, $2.96{\pm}0.14$ m/s, and $1.64{\pm}0.19$ m/s, respectively. The minimum knee angle and take-off angle were $151{\pm}8.89^{\circ}$ and $20.7{\pm}1.03^{\circ}$, respectively. In the flight phase, the flight time and maximum height of the center of gravity were $0.78{\pm}0.03$ s, and $1.60{\pm}0.05$ m, respectively. In the landing phase, the landing length was $0.50{\pm}0.07$ m. The trunk angle, knee angle, and hip angle were $74{\pm}18.75^{\circ}$, $131{\pm}10.45^{\circ}$, and $82{\pm}9.03^{\circ}$, respectively. The kinematic characteristics of the motion of a good long jump were as follows. The reduction in the horizontal velocity in the take-off phase was minimized, and the maximum velocity of the run-up was maintained. The vertical velocity in the take-off phase was increased using a rapidly extended knee and high center of gravity.
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참고문헌 (15)
참고문헌 신청
Abdel-Aziz, Y. I. / 1971 / Direct linear transformation from comparator coordinates in object -space coordinates in close-range photogrammetry / Proceedings of the ASP Symposium of Close-Range Photogrammetry. Urbana, IL
Bae, S. J. / 1994 / The correlation between the kinematic variables and the flight distance on take-off long jump / The/Korean Journal of Physical Education 33(1):253~264
Coh, M / 1997 / Kinematic -dynamic analysis of the takeoff action in the long jump / Track Coach :4443~4445
2009 / German Athletics Association / Biomechanics Report World Championships 2009 Berlin
Hay, J. G. / 1990 / Techniques used by elite long jumper in preparation for takeoff / Journal of Biomechanics 23(3):229~239
Bae, S. J. / 1994 / The correlation between the kinematic variables and the flight distance on take-off long jump / The/Korean Journal of Physical Education 33(1):253~264
Coh, M / 1997 / Kinematic -dynamic analysis of the takeoff action in the long jump / Track Coach :4443~4445
2009 / German Athletics Association / Biomechanics Report World Championships 2009 Berlin
Hay, J. G. / 1990 / Techniques used by elite long jumper in preparation for takeoff / Journal of Biomechanics 23(3):229~239
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