男子20km竞走比赛奥运冠军陈定的主要技、战术特征分析  

Analysis of Characteristics of Technique and Tactics of Chen Ding,the Olympic Games Champion of Men's 20 km Race Walking

作　　者：赵艳明[1] 

机构地区：[1]西安体育学院,西安710068

出　　处：《西安体育学院学报》2014年第1期115-120,共6页Journal of Xi'an Physical Education University

基　　金：西安体育学院重点课题(2010GD005)

摘　　要：采用影片解析法、数理统计法、专家访谈法等方法,对"全国竞走锦标赛暨奥运会达标赛"男子20 km竞走比赛冠军陈定的技术结构进行运动学分析,结合第30届奥运会的速度变化特征、各段落速度与总成绩的相互关系的研究,结果表明:我国男子20 km竞走运动员陈定的技、战术已达世界先进水平;在单步腾空时间、支撑腿膝关节角度在着地、离地瞬间,相比过去有较好的改善;身体重心垂直位移稍有加大,在竞走技术上仍然存在小步幅、快步频的特点。而运动员保持连续长时间高速度快走的竞技特征,是确保比赛获胜的关键。Using video analysis, mathematical statistics and expert interview, this paper analyzes the technical structure of Chen Ding according to the study of the relationship between total score and speed of each stage. The results show that Chen Ding has reached the world advanced level in techniques and tactics. Improvements have been achieved on one - step jump- ing time, the supporting leg knee joint angle in landing and lifting off moment, the vertical displacement in center of body weight. There are, however, characteristics of small stride and rapid stride frequency in race walking technique. The key to winning the game lies on athlete~ continuous rapid walking for a long period of time.

关 键 词：竞走 竞技特征 高速走 分析 

分 类 号：G821.19[文化科学—体育训练]