旋转推铅球技术最后用力动作的运动学分析——以我国2名铅球运动员推铅球技术动作为例  

The Three-dimensional Kinematics Analysis on Release Phase of Rotational Shot Put——Rotational Shot Put Techniques of Two Elite Chinese Athletes'

作　　者：文世林[1] 

机构地区：[1]湖南工业大学体育学院,湖南株洲412008

出　　处：《湖南工业大学学报（社会科学版）》2010年第6期115-118,共4页Journal of Hunan University of Technology(Social Science Edition)

摘　　要：采用美国Ariel运动录像快速反馈分析系统,对两名参加全国田径大奖赛的运动员旋转推铅球技术动作进行研究,得出如下结论:我国两名运动员最后用力阶段的出手角度和出手高度与国外优秀运动员没有明显差异,造成我国运动员与国外运动员成绩差异的主要原因是最后用力时刻的出手速度;张骏最后用力时刻左膝角偏小,左侧支撑不牢固,重心后坐,撑蹬用力效果差;张俊在最后用力阶段左侧撑蹬用力不充分,身体重心往投掷方右侧偏转,导致铅球落点靠投掷区右侧。This paper adopts the Arial three-dimensional analysis system to trim and calculate the video of the national championship and compare the data.The conclusion is： the release angle and release height of athletes in China and abroad is appropriately the same,but the release velocity of athletes in our nation is slower than foreign elites＇;Zhang Jun＇s left knee angle at release phase is small,power position is not good;The trajectory of CG shows Zhang Jun＇s CG moving to right side of putting circle at delivery phase.

关 键 词：旋转推铅球 张骏 左膝角 撑蹬用力 落点 

分 类 号：G824.1[文化科学—体育训练]