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中国优秀自由式滑雪空中技巧运动员躯干肌力与专项成绩关系研究

发表时间:2014-09-15  浏览量:1840  下载量:659
全部作者: 王述周,李扬,周越,朱晗
作者单位: 北京体育大学运动人体科学学院;国家体育总局冬季运动管理中心
摘 要: 目的:探究自由式滑雪空中技巧运动员躯干肌力与其专项成绩的关系,为国家队的训练和备战以及运动员选材提供理论依据。方法:应用ISOMED2000等动测试系统分别对自由式滑雪空中技巧国家队14名运动员进行60(°)/s,180(°)/s速度下躯干的屈伸力量和60(°)/s,150(°)/s速度下躯干的扭转力量进行测试,专项成绩通过国际雪联、中国滑雪协会以及跟队训练测试获得。结果:我国优秀的自由式滑雪空中技巧运动员躯干屈伸肌群峰力矩(peak torque, PT)、相对峰力矩(peak torque to body weight ratio, PT/BW)与空中技巧专项成绩呈正相关(r=0.59~0.83,P<0.05),且伸肌群的相关程度高于屈肌群。屈伸肌力比值(flexor/extensor, F/E)与落地成功率呈负相关[60(°)/s条件下r=-0.67,180(°)/s条件下r=-0.72,P<0.05]。躯干左右侧扭转肌力与专项成绩的相关程度在快速[150(°)/s]状态下高于慢速[60(°)/s]状态。在快速[150(°)/s]状态下,躯干左侧扭转肌力与专项成绩的相关程度高于右侧。左侧扭转肌群PT,PT/BW与落地成功率存在正相关(r=0.64,r=0.67,P<0.05)。结论:躯干屈伸肌力、扭转肌力对自由式滑雪空中技巧专项成绩影响非常关键,尤其是躯干伸肌群和躯干左侧扭转肌群的力量水平。
关 键 词: 运动生理学;自由式滑雪空中技巧;躯干肌力;专项成绩;落地成功率
Title: Relationship between specific performance and trunk muscle strength of China elite freestyle skiing aerials athletes
Author: WANG Shuzhou, LI Yang, ZHOU Yue, ZHU Han
Organization: Sport Science College, Beijing Sport University; China Winter Sport Federation, General Administration of Sport of China
Abstract: Objective: The study is aimed to provide theoretical basis for training and preparing for match and selection of 14 athletes of national team through exploring the relationship between specific performance and trunk muscle strength of freestyle skiing aerials athletes. Methods: The research used ISOMED2000 isokinetic testing system to test national freestyle skiing aerials athletes performed 60(°)/s, 180(°)/s speed trunk flexion and extension and 60(°)/s, 150(°)/s speed trunk rotation. The relevant data of specific performance was obtained through FIS, Chinese Ski Association and training of national team. Results: The trunk flexion and extension peak torque (PT), peak torque to body weight ratio (PT/BW) of China excellent freestyle skiing aerials athletes had highly positive correlation with the specific performance(r=0.59-0.83, P<0.05). The correlation coefficient of trunk extension was higher than trunk flexion. Flexor/extensor (F/E) of trunk had negative correlation with the rate of landing success[60(°)/s r=-0.67, 180(°)/s r=-0.72, P<0.05]. The correlation coefficient of trunk rotation at fast speed [150(°)/s] was higher than slow speed [60(°)/s]. In fast speed [150(°)/s], the correlation coefficient of left trunk rotation was higher than right and the left trunk rotation PT, PT/BW had positive correlation with the rate of landing success(r=0.64, r=0.67, P<0.05). Conclusion: The strength of trunk flexion and extension and trunk rotation has critical influence on the specific performance of freestyle skiing aerials, especially the trunk extension strength and left rotation strength.
Key words: sport physiology; freestyle skiing aerials; trunk muscle strength; specific performance; rate of landing success
发表期数: 2014年9月第17期
引用格式: 王述周,李扬,周越,等. 中国优秀自由式滑雪空中技巧运动员躯干肌力与专项成绩关系研究[J]. 中国科技论文在线精品论文,2014,7(17):1782-1788.
 
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