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초록· 키워드

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The purpose of this study was to clarify the availability of snap motion of ankle and to indicate the better kick during sprint start. Subjects was 4 elite male sprinters appeared in 3rd IAAF World Championships in Athletics and 4 college male sprinters. The measurements of elite sprinters were taken from IAAF scientific project report. College sprinters were recorded by two high-speed video cameras (500 field/sec). DLT method was used to analyze several parameters that lower limb angles at contact and take off the ground.
Welch'stest was used to compare between elite and collage male sprinters.
The major result was as follows :
1) The snap by the ankle at every step was not significant difference between elite and college male sprinters. Thus the snap by the ankle was not an availability technique during sprint start.
2) The better kick when contact phase was high knee, because of to swing the bigger displacement of hip extension.

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Abstract
Ⅰ. 目的
Ⅱ. 硏究方法
Ⅲ. 結果
Ⅳ. 考察
Ⅴ. 要約
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UCI(KEPA) : I410-ECN-0101-2009-692-016603359