The medical and scientific analysis for improving performance of elite swimmers ; A longitudinal study

提高优秀游泳运动员成绩的医学和科学分析；

基本信息

批准号：
17500436
负责人：
TANAKA Takao
金额：
$ 2.39万
依托单位：
National Institute of Fitness and Sports in Kanoya
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2005
资助国家：
日本
起止时间：
2005 至 2007
项目状态：
已结题

项目摘要

A longitudinal study used elite swimmers was performed 1) to clarify the determinants of swimming performance in each distance event based on the physiological and biomechanical analysis, 2) to examine the relationship between the changes in measured variables and the changes in performance, and 3) to determine the propelling efficiency which can evaluate stroke technique objectively.The subjects were fifteen elite Japanese female swimmers (age : 21±1 yrs) who belonged to an inter-college champion team, including the participants to Olympic, Asian Games, Universiade, and so on. Maximal oxygen uptake (VO_2max), maximal blood lactate concentration (LAmax), and swimming speed at onset of blood lactate accumulation (V@OBLA) were measured as indices of physiological capacity. Also a drag coefficient, a drag exponent, drag-swimming speed relationship and maximal propulsive power (MPP), propelling efficiency (ep) were determined as indices of biomechanical characteristics. All biomechanical a … More nalysis were completed with a modified MAD system which is similar to that described by Toussaint.When swimming performance was related to all measured variables, significant correlations were observed between sprint performance and MPP, LAmax and a better physique, and between distance performance and V@OBLA and specific stroke technique to reduce drag, while no significant relationship was found on VO_2max. Also, when changes in swimming performance was related to changes in measured variables, only the reduction of drag in maximal swimming was significantly related to the improvement of swimming performance. This finding suggests that the development of swimming performance in elite swimmer would be strongly attributed to the improving stroke technique. Furthermore, ep of the subjects used in this study was 73.2±8.3%, which was rather higher than those reported in the previous studies. In conclusion, it revealed that superior stroke technique to reduce drag and with a higher ep should be considered more significant determinants of better performance in elite swimmers. Less

进行了一项使用精英游泳者的纵向研究1）根据物理和生物力学分析阐明每个距离事件中游泳表现的决定者，2）检查测量变量变化与性能变化与性能变化与3）的关系，以确定可以客观地评估stroke技术的倾向效率。 Inter College冠军团队，包括奥运会，亚洲运动会，Universlikeade等参与者。最大的氧气吸收（VO_2MAX），最大血液裂缝浓度（LAMAX）和血液裂缝积累时的游泳速度（V@Obla）作为身体能力的指数。同样，阻力系数，阻力指数，阻力速度速度关系和最大推进能力（MPP），推动效率（EP）作为所有生物力学特征的指数确定。所有生物力学A…进行了更多的分析，通过修改的MAD系统完成了与Toussaint所描述的相似的。当游泳性能与所有测量变量有关时，Sprint性能与MPP，Lamax和更好的体格以及距离性能与V@obla和特定的Stroke技术之间的相关性与较大的牵引力相关，而在Vo_2 Max上都没有显着的牵引力。同样，当游泳性能的变化与测量变量的变化有关时，最大游泳中的阻力减少与游泳性能的改善显着相关。这一发现表明，精英游泳者的游泳表现的发展将很大程度上归因于改善的中风技术。此外，本研究中使用的受试者的EP为73.2±8.3％，比以前的研究中报道的EP高。总而言之，它表明，在精英游泳者中，应将较高的EP的上风技术和更高的EP技术视为更好的表现。较少的