| 我国优秀女子蹦床运动员网上空翻类动作水平移动过大的运动学分析 |
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| 引用本文： | 牛雪松.我国优秀女子蹦床运动员网上空翻类动作水平移动过大的运动学分析[J].北京体育大学学报,2007,30(8):1148-1150. |
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| 作者姓名： | 牛雪松 |
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| 作者单位： | 北京体育大学,北京,100084 |
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| 摘 要： | 选取了4名优秀女子国家队队员做为研究对象,主要运用摄像法和三维录像解析法对我国蹦床运动员网上普遍存在的非技术性位移问题,即水平移动过大问题进行了研究.研究结果表明:1)非技术性位移主要表现在纵向水平移动上,向前类和向后类空翻动作在纵向水平移动上不存在显著差异.2)在纵向水平上产生非技术性位移的向前类和向后类空翻动作离网瞬时重心的水平速度在1.00m/s以上,腾起角在80°以下.3)非技术性位移与前一个动作形成的不良的入网时空参数有关,前一个动作入网时重心水平速度在1.00m/s以上,入网角在80°以下就会对下一个动作的起跳产生影响.
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| 关 键 词： | 蹦床运动员 非技术性位移 向前类空翻 向后类空翻 离网阶段 入网阶段 优秀女子 蹦床运动员 空翻动作 水平移动 运动学 分析 Trampoline Female Chinese Displacement 影响 重心水平速度 参数 时空 腾起角 差异 表现 结果 问题 位移 |
| 文章编号： | 1007-3612(2007)08-1148-03 |
| 修稿时间： | 2005年10月14日 |
The Kinematics Analysis on the Non-technical Displacement on the Net for Chinese Elite Female Trampoline Players |
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| NIU Xue-song.The Kinematics Analysis on the Non-technical Displacement on the Net for Chinese Elite Female Trampoline Players[J].Journal of Beijing Sport University,2007,30(8):1148-1150. |
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| Authors: | NIU Xue-song |
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| Abstract: | The research chose four elite national team members as the objects,and analyzed common problems of non-technical displacement on the net.The displacement was a little bit oversized by main methods including recording and videoanalysis.The conclusions are as follows.1) There are no significant differences for the horizontal displacement in longitudinal direction between front flips and back flips,both of them could produce more horizontal displacement.2) The non-technical displacement on the net has something to do with the horizontal speed of barycenter and jumping angle,the barycenter horizontal speed produced in the instant of leaving the net for the non-technical displacement in this test event is below 1.00m,jumping angle is below 80 degrees.3) The trampoline players" non-technical displacement on the net is related with the bad time-space parameter of entering the net produced from the last maneuver.It would affect the jumping of the next one when the last maneuver entered the net at a barycenter horizontal speed of higher than 1.00/s and an angle of lower than 80 degrees. |
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| Keywords: | trampoline player non-technical displacement front flips back flips the stage of leaving the net the stage of landing onto the net |
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