自由泳临界速度测定方法比较研究

Comparative Study on Critical Velocity Determination of Freestyle Swimming

比较3种测定自由泳临界速度(critical velocity,CV)的方法,旨在寻求一种简便易行的测定自由泳临界速度的方法。选择12名男性自由泳运动员为研究对象,运动等级为二级,年龄为(18.39±1.24)岁,身高为(1.86±0.07)m,体质量为(79.47±7.06)kg。结果表明:3种方法测得的CV具有显著差异(P<0.01)。方法 1得到的CV最大,为(1.43±0.03)m/s;方法 2得到的CV最小,为(1.28±0.00)m/s;方法3测得的数据为(1.38±0.01)m/s。若将方法 3测得的数据作为CV的"真实值",则方法 1高估了运动员的CV(3.62%),而方法 2则较严重地低估了运动员的CV(7.24%);因此,可以确定方法 1是在实际训练中较为可行的CV测定方法,但仍需进一步研究。

The aim of this paper is to compare three different methods of determining the critical velocity（CV）in freestyle swimming. Twelve male swimmers were selected to participate in this study. Their age was（18.39±1.24）years old, body height was（1.86±0.07）m, and body weight was（79.47±7.06）kg. The results showed the CV values measured by the three methods were significantly different（p〈0.01）. And the values obtained from Method 1 was the highest（1.43±0.03）m/s, followed by that of Method 3（1.38±0.01）m/s, and the last ones were that of Method 2（1.28 ±0.00）m/s. The CVs measured via Method 3 were considered the ＂true values＂, therefore, Method 1 would overestimate the CV of the swimmers by about 3.62%, while Method 2would greatly underestimate the CV of the swimmers by about 7.24%. Therefore, it can be concluded that Method 1 might be a potential easily conducted method, but it still should be cautiously used in practical and need further studies in the future.