| 男子跳远运动员不同起跳级次及其起跳技术的运动学分析 |
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| 引用本文： | 马俊明,周巧玲.男子跳远运动员不同起跳级次及其起跳技术的运动学分析[J].西安体育学院学报,2003,20(5):44-47. |
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| 作者姓名： | 马俊明 周巧玲 |
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| 作者单位： | 1. 上海体育学院,体育教育运动训练二系,上海,200438
2. 上海市南湖职业学校,上海,200439 |
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| 基金项目： | 上海体育学院科研基金资助项目(200221) |
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| 摘 要： | 采用现场定点高速摄像、录像分析以及数理统计等方法,通过对A、B两组起跳阶段不同时相身体重心水平速度和垂直速度的变化与着板角、起跳缓冲和蹬伸阶段膝角变化的比较分析。结果表明:成绩较好,缓冲阶段身体重心水平速度的减小值会略大,垂直速度的增加值则更大;而且,离板瞬间身体重心水平速度和垂直速度都呈现出相对较大的趋势。
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| 关 键 词： | 水平速度 垂直速度 着板角 膝角 运动学 跳远起跳 |
| 文章编号： | 1001-747X(2003)05-0044-04 |
| 修稿时间： | 2002年11月27 |
Analyse on Kinematics of Take-Off Different Class and Technique of Male Long Jump |
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| Abstract: | Using high speed video recorder system , the methods of video analysis and data statistical processingThe article made a comparison and analysis of the variations of the body center gravity horizontal velocity and vertical velocity to the variations of the landing board angle of the jumping foot, buffer and knee angle during the taking off phase between AB groupsThe article concluded that Chinese male elite long jumpers tend to incline to a small landing angle when the taking off foot touched the board coordinated with obvious knee angle variations during the buffer and taking off phase The jumpers' horizontal velocity of body center gravity decreased dramatically while vertical velocity increased relatively The horizontal velocity and vertical velocity of the jumpers' body center gravity inclined to having the tendency of increase when the taking off foot leaving the board |
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| Keywords: | horizontal velocity vertical velocity landing board angle knee angle kinematics take-off of long jump |
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