| 对优秀男子跳远运动员助跑速度与起跳角度的研究 |
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| 引用本文： | 周强.对优秀男子跳远运动员助跑速度与起跳角度的研究[J].哈尔滨体育学院学报,2000(3). |
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| 作者姓名： | 周强 |
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| 作者单位： | 南京河海大学体育系 |
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| 摘 要： | 跳远属于斜抛运动,根据斜抛运动远度公式S=V~2sin2a/g可知,跳远的成绩与腾起初速度(V)和腾起角(a)有关。通过对中外优秀男子跳远运动员跳远技术的对比分析,发现我国男子跳远运动员提高成绩可以通过两种途径:一是提高绝对速度,同时适当降低助跑速度利用率,改进助跑最后几步的节奏,二是增大着板角和离地角,减小扇角,提高腾起角。
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| 关 键 词： | 跳远 助跑速度 起跳角度 |
Summary of Research on the Run - up Speed and Take - off Angle of Chinese Excellent Male Athletes |
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| Authors: | Zhou Qiang |
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| Abstract: | Long - jump belongs to slauting projectile motion. According to the speed formula of slanting projectile motionS = V~2sin2a/g, long - jump performance is directly concerned with both the initial speed of prance(V) and projectile angle(a). By comparing and analyizing long - jump skills of Chinese excellent male athletes and those of world athletes, it isfound to improve Chinese male long - jump athletes' performance in two ways: one is to raise absolute speed, and at thesame time to decrease utilizing rate of run - up speed, accordingly and improve the rhythm of run - up last few steps; theother is to enlarge touch - down angle and take - off angle, make fan - shaped angle smaller and expand projectile angle. |
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| Keywords: | loug - jump run - up speed take - off angle |
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