摘要
目的:描述游泳运动员在200m自由泳中,短周期内速度波动(Vfluc)的特征和变化,及身体质心速度的最大值(Vmax)和最小值(Vmin),并分析其与运动员运动表现的相关性。方法:选现役河北省游泳队国家一级以上自由泳男运动员共11名为研究对象。用4台水下和2台水上摄像机同步记录他们的游泳表现。将200m自游泳分为4段(每段50m:SC1、SC2、SC3、SC4)分析,采用椭圆区域的方法对人体数据进行计算。结果:测试发现,200m自游泳中Vmean总体在下降;Vmax和Vmin与运动员的表现呈正相关,且SC1段比另外三段的相关性更高;Vmax和Vmin的相关性显著且一致,但与游泳表现并无相关性。结论:各个方向速度波动特征与运动表现没有相关性,且在整个运动过程中也并不呈现显著性的变化。
Objective ： This study aims at describing the swimmers＇ features and changes of a short - cycle speed fluc- tuation in the 200m freestyle （Vfluc）, and analyzing their correlation with the swimmers＇ performance. Meth- ods： 11 male swimmers in active service from Hubei are selected as the research subjects. 4 underwater and 2 overwater video cameras are used to synchronously record their swimming performance. The 200m freestyle swimming is divided into 4 segments （ SC1, SC2, SC3, SCA） and oval region method is adopted to calculate human body data. Results： the findings indicate an overall decline in the Vmean and a positive correlation be- tween the swimmers＇ Vmax/Vmin and their performance with the correlation of segment 1 much higher than the other three sections. Vmax and Vmin demonstrate significant correlation, but no correlation to the swimming performance. Conclusion： there is no correlation between the velocity fluctuation characteristics in all directions and performance with no significant changes during the whole process.
出处
《成都体育学院学报》
CSSCI
北大核心
2015年第3期82-86,共5页
Journal of Chengdu Sport University
基金
2014年国家体育总局重点研究领域项目(2014B036)
2013年重庆市教委人文社科一般项目(13SKM03)
关键词
运动学
自由泳
质心
速度特征
kinematics
freestyle
centroid
velocity features
