|
|||||
|
|
| 我国优秀女子竞走运动员身体重心运动轨迹的生物力学研究 | |
| 引用本文： | 张德荣,魏统朋,陈亮.我国优秀女子竞走运动员身体重心运动轨迹的生物力学研究[J].天津体育学院学报,2003,18(4):78-80. |
| 作者姓名： | 张德荣 魏统朋 陈亮 |
| 作者单位： | 1. 天津体育学院,教育科学系,天津,300381 2. 天津体育学院,研究生部,天津,300381 3. 天津体育学院,实验中心,天津,300381 |
| 摘 要： | 以计算机输出的大量运动学参数与图表为依据，从运动生物力学角度分别对第8届、第9届全运会10名女子竞走运动员一个单步的身体重心运动轨迹进行定量和定性分析，并进一步分析了身体重心起伏程度与腾空时间、支撑腿踝角的关系。分析结果为，10名运动员均采用“足踵触地，踝关节背屈”滚动式的着地技术，以及后蹬腿“脚尖离地”技术，身体重心在支撑腿离地瞬时达到最大高度，在垂直支撑瞬时最低；身体重心腾空阶段的运动轨迹呈现平抛曲线而非斜上抛曲线；腾空阶段的身体重心高度差(而非身体重心总的高度差)是决定腾空时间的主要因素。 |
| 关 键 词： | 竞走 女子 优秀运动员 重心 运动轨迹 |
| 文章编号： | 1005-0000(2003)04-0078-03 |
| 修稿时间： | 2002年12月10 |
Biomechanic Study on the Movement Orbit of the Center of Gravity of the Elite Women Race Walkers In China |
|
| ZHANG De-rong,WEI Tong-peng and CHEN Liang.Biomechanic Study on the Movement Orbit of the Center of Gravity of the Elite Women Race Walkers In China[J].Journal of Tianjin Institute of Physical Education,2003,18(4):78-80. | |
| Authors: | ZHANG De-rong WEI Tong-peng and CHEN Liang |
| Institution: | ZHANG De-rong1,WEI Tong-peng2,CHEN Liang3 |
| Abstract: | The paper has respectively a quantitative and a qualitative analysis on the movement orbit of the center of gravity, and the relation between the airborne time of a single step and the hight of center of gravity of the elite race-walkers ranked from 1 to 7 in the 10 km race-walking item in the 8th China National Sport Games, 1 to 3 in the 20 km race-walking item in the 9th National Sport Games in the ways of high-speed filming and high-speed recording. The results were: All applied the technique of heel hitting ground with ankle joint in dorsiflexion and takeoff with tip of the toe pushing-off finally;The center of gravity reached the highest point in the flash of pushing-off of the supporting leg, and the lowest in the flash of vertical position;The movement orbit of center of granity of the elite athletes is a level flinging curve in the airborne phase, but not a oblique upward curve;The airborne time of the elite athletes is determined by the altitude intercept of the center of gravity in the airborne phase, and has no conspicuous relevance to the general ups and downs of the center of gravity. |
| Keywords: | race-walking womans elite player center of gravity biomechanics |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
| 点击此处可从《天津体育学院学报》浏览原始摘要信息 | |
| 点击此处可从《天津体育学院学报》下载免费的PDF全文 | |