检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]安徽省体育运动职业技术学院,安徽合肥230001 [2]上海市委党校,上海200233 [3]上海市建青实验中学,上海200051
出 处:《体育科研》2003年第3期30-31,共2页Sport Science Research
摘 要:本文运用高速摄影、影片解析方法,分析虞轶群跳远助跑和起跳步长及起跳腿膝关节角度等技术指标,发现其助跑最后3步速度较快,但助跑节奏不够稳定,步幅变化较大,靠视觉感知来调整步长。在起跳蹬伸阶段,起跳腿膝关节蹬伸幅度和蹬伸角速度与世界优秀运动员有一定差距。By applying the methods of high-speed photography and film analysing, the article analy-ses the technical indexes of Yu Yiquns long jump run-up, length of jumping pace and the angle of theknee joint of the jumping leg. The result shows the velocity of his last three run-up paces is fast. But therhythm is not so stable. The length of his paces is regulated by the feeling of vision. At the moment ofleg-stretching for jumping, the range and angle velocity of the knee joint of his jumping leg need to beimproved compared to the world top athletes.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.145