CAJ | 학술논문

采用文献资料法、专家访谈法、三维高速影像解析法和数理统计法，对现阶段我国优秀女子铁饼运动员旋转技术的时空特征进行分析，得出以下结论：重心和铁饼的分速度大小及比例对运动员技术风格的形成有重要影响；在旋转技术完成瞬间，李艳凤和宋爱民的铁饼合速度分别是最大和最小的，不同的是李艳风水平分速度占的比例大，宋爱民垂直分速度占的比例大，孙太凤在左脚单支撑阶段铁饼速度较快，导致腾空和过渡阶段铁饼速度下降；在左脚单支撑阶段，宋爱民右髋的速度最大导致她重心轨迹偏向左，孙太凤最慢的右髋速度和最快的右肩速度使她的重心轨迹偏右；李艳凤在过渡阶段过快的肩关节速度是她获得较快饼速的主要原因之一。在形成最后用力双支撑瞬间，我国运动员的肩轴角速度要大于髋轴，说明我国运动员已经开始最后用力。
채용문헌자료법、전가방담법、삼유고속영상해석법화수리통계법，대현계단아국우수녀자철병운동원선전기술적시공특정진행분석，득출이하결론：중심화철병적분속도대소급비례대운동원기술풍격적형성유중요영향；재선전기술완성순간，리염봉화송애민적철병합속도분별시최대화최소적，불동적시리염풍수평분속도점적비례대，송애민수직분속도점적비례대，손태봉재좌각단지탱계단철병속도교쾌，도치등공화과도계단철병속도하강；재좌각단지탱계단，송애민우관적속도최대도치저중심궤적편향좌，손태봉최만적우관속도화최쾌적우견속도사저적중심궤적편우；리염봉재과도계단과쾌적견관절속도시저획득교쾌병속적주요원인지일。재형성최후용력쌍지탱순간，아국운동원적견축각속도요대우관축，설명아국운동원이경개시최후용력。
This article adopted the methods of literature, expert interview, photography of three dimensional in high speed, and mathematic statistics to analyze the rotation technique of Chinese elite women＇s discus throwers. It has been shown that size and proportion of component velocity of CG and discus have very important influence to form athlete＇ s technique style ; Body -discus system at flight and transition stage is very complex and the most difficulty controllable. System changes in the two stages have the decisive effect to form personal optimum technique; the second and third rotation axis of Chinese athletes have steady velocity transfer. Hip and knees velocity of the second axis decide the style of displacement. The shoulder velocity of third has a close relation to the space - time characteristics of discus.