国内外女子链球优秀运动员旋转技术的运动学分析

Kinematical analysis of the spinning techniques of excellent female hammer throwers at home and abroad

对获得第29界奥运会女子链球冠军的米安科娃和季军的张文秀的旋转技术进行拍摄,运用德国SIMI-motion录像解析系统对两位选手的技术进行解析。结果表明:两位选手在旋转阶段各时相的重心高度无显著性差异;但米安科娃的旋转速度显著高于张文秀,且单、双腿支持的时间及其比例、链球运行的斜面角、肩髋和肩链的角度等均优于张文秀。

The authors shot the spinning techniques of Miankewa and ZHANG Wen-xiu, respectively the champion and bronze medalist of women＇s hammer throw in the 29th Olympic Games, analyzed their techniques by using SIMI-motion video analysis system made in Germany, and revealed the following findings： there is no significant difference between the two players in terms of the height of the center of gravity at various time intervals at the spinning stage; however, the spinning speed of Miankewa was significantly higher than that of ZHANG Wen-xiu, and the time and proportion of single and double leg support, the bevel angle of hammer movement, and the angle between the chain and shoulder, of Miankewa, were all superior to the same ofZHANG Wen-xiu.