| 国内男子优秀皮艇运动员途中划划桨技术与效果的研究——兼谈双机同步二维摄像法和皮艇专项分析系统 |
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| 引用本文： | 李晓浦,魏文仪,裘艺.国内男子优秀皮艇运动员途中划划桨技术与效果的研究——兼谈双机同步二维摄像法和皮艇专项分析系统[J].体育科学,2006,26(11):62-66,74. |
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| 作者姓名： | 李晓浦 魏文仪 裘艺 |
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| 作者单位： | 1. 上海体育学院,运动科学系,上海,200438
2. 江西体育科学研究所,江西,南昌,330006 |
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| 基金项目： | 上海市重点学科建设项目 |
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| 摘 要： | 采用双机同步二维摄像法对参加2005年全运会预选赛的12名男子优秀运动员在500m单人艇比赛时的途中划过程进行了现场拍摄，并且运用自行研发并与摄像方法相适应的皮艇运动专项解析软件对所拍的图像资料进行解析。运用理论和统计学方法分析了途中划的划桨技术，拟揭示国内单人皮艇500m优秀运动员途中划的技术动作的运动学特征，以期从理论和解析数据两方面探究提高途中划划桨效果的皮艇技术的改进方向。结论：双机同步二维摄像方法和专项分析系统使用效果良好；根据拉桨过程中桨获得推进力的主要来源，整个拉桨阶段可分为入水升力推进时相、阻力推进时相和出水升力推进时相；拉桨时艇速的变化特征是分析划桨效果的重要依据之一；随速度的提高，后拉划距减小；最大艇速出现时刻前移和速度下降率增大，阻力作用于艇和桨的相对时间延长；在出水升力推进时相，减小划桨的水平速度，加大垂直速度，加大出水角，将更有利于提高艇速和划桨效果。
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| 关 键 词： | 皮艇 运动学分析 划桨 效果 专项技术 |
| 文章编号： | 1000-677X（2006）11-0062-05 |
| 收稿时间： | 2006-06-08 |
| 修稿时间： | 2006-06-082006-08-24 |
Research on the Stroke Effect of Our Elite Flatwater Kayak Paddler's Technique on the Midway in Two-Dimensional Motion System of Two Synchronous Cameras |
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| LI Xiao-pu,WEI Wen-yi,QIU Yi.Research on the Stroke Effect of Our Elite Flatwater Kayak Paddler''''s Technique on the Midway in Two-Dimensional Motion System of Two Synchronous Cameras[J].China Sport Science,2006,26(11):62-66,74. |
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| Authors: | LI Xiao-pu WEI Wen-yi QIU Yi |
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| Institution: | 1.Shanghai University of Sport, 200438, China; 2. Jiangxi Institute of Sport Science,Nanchang 330006, China. |
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| Abstract: | By using the two-dimensional motion system of two synchronous cameras,this paper made video camera at site on twelve elite male athletes who participated in k-1 500m preliminary match of 2005 National Games and analyzed on it using the self-made special software.Through using the method of theoretical and statistical analysis,the author analyzed the stroke technique on the midway and pointed out the kinematical characteristics of technical motion.The main purpose was to explore how to improve the stroke effect.It concluded that the special analysis system and two-dimensional motion system of two synchronous cameras works well,and pull phase is divided into propulsion phase of lift mode and resistance mode.It is found that along with the increasing kayak speed,the stroke distance in the back pull phase shortens and moves ahead to the time point of the most kayak speed and the rate of descending speed increases which prolong the duration of resistance action on kayak and oar.The kayak speed and stroke effect will be improved to decrease oar's horizontal kayak speed and increase oar's vertical kayak speed and increase oar's angle of parting water. |
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| Keywords: | kayak kinesiological analysis stroke effect stroke technique |
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