The Korean Journal of Physical Education (한국체육학회지)

Korean Alliance for Health: Physical Education: Recreation:and Dance (한국체육학회)
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Kinematic characteristics of the Asian long jumpers in 8m record

멀리뛰기 8m 기록 아시아 선수들의 운동학적 특성

Kim, Hye-Young
김혜영

  • Published : 20040000
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Abstract

The purposes of this study were to investigate the characteristics of the technique used by Asian long jumpers who recorded 8m using the kinematic analysis from the last three stride to the landing in the long jump and to compare with them of the national elite athletes. For this study, the subjects were the top 3 finalists in the man's long jump of the Asian Games held in Busan in 2002. The conclusion were as follows; 1. In the approach phase the horizontal velocity of the jumpers decreased about 0.5m/s to the last stride takeoff, but the national athletes decreased about 1m/s. 2. The height of center of gravity(CG) of the jumpers at the last stride was significantly lowered as much as the CG at touch down into the board but in the national athletes it was not. 3. The jumpers obtained 74% of the final vertical velocity during the compression phase, but the national athletes obtained 36%. 4. The reduction of horizontal velocity during the lift phase was 0.31 m/s in this study, it was smaller than about 0.7 m/s of the national athletes. 5. The jumpers put the takeoff leg in front of the CG and balanced on the body and prepared in advance for the landing motion at the maximum height point in the flight phase.

Keywords

References

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