Morouço Pedro, Keskinen Kari L, Vilas-Boas Joao Paulo, Fernandes Ricardo Jorge
Faculty of Sport, University of Porto, Porto, Portugal.
J Appl Biomech. 2011 May;27(2):161-9. doi: 10.1123/jab.27.2.161.
The purpose of the current study was to identify the relationships between competitive performance and tether forces according to distance swam, in the four strokes, and to analyze if relative values of force production are better determinants of swimming performance than absolute values. The subjects (n = 32) performed a 30 s tethered swimming all-out effort. The competitive swimming velocities were obtained in the distances 50, 100 and 200 m using official chronometric values of competitions within 25 days after testing protocol. Mean force and velocity (50 m event) show significant correlations for front crawl (r = .92, p < .01), backstroke (r = .81, p < .05), breaststroke (r = .94, p < .01) and butterfly (r = .92, p < .01). The data suggests that absolute values of force production are more associated to competitive performance than relative values (normalized to body mass). Tethered swimming test seems to be a reliable protocol to evaluate the swimmer stroking force production and a helpful estimator of competitive performance in short distance competitive events.
本研究的目的是确定在四种泳姿中，根据游进距离，竞技表现与系绳拉力之间的关系，并分析力量产生的相对值是否比绝对值更能决定游泳成绩。受试者（n = 32）进行了30秒的全力系绳游泳。在测试方案后的25天内，使用比赛的官方计时值，得出了50米、100米和200米距离的竞技游泳速度。平均力量和速度（50米项目）在前爬泳（r = .92，p < .01）、仰泳（r = .81，p < .05）、蛙泳（r = .94，p < .01）和蝶泳（r = .92，p < .01）中显示出显著相关性。数据表明，力量产生的绝对值比相对值（相对于体重归一化）与竞技表现的关联更大。系绳游泳测试似乎是评估游泳运动员划水力量产生的可靠方案，也是短距离竞技项目中竞技表现的有用估计指标。
