CAJ | 학술논문

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。
목적：묘술유영운동원재200m 자유영중，단주기내속도파동（Vfluc）적특정화변화，급신체질심속도적최대치（ Vmax）화최소치（Vmin），병분석기여운동원운동표현적상관성。방법：선현역하북성유영대국가일급이상자유영남운동원공11명위연구대상。용4태수하화2태수상섭상궤동보기록타문적유영표현。장200m 자유영분위4단（매단50m：SC1、SC2、SC3、SC4）분석，채용타원구역적방법대인체수거진행계산。결과：측시발현，200m 자유영중 Vmean총체재하강；Vmax화 Vmin여운동원적표현정정상관，차 SC1단비령외삼단적상관성경고；Vmax화 Vmin적상관성현저차일치，단여유영표현병무상관성。결론：각개방향속도파동특정여운동표현몰유상관성，차재정개운동과정중야병불정현현저성적변화。
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,SC4)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.