| 不同角速度下自行车运动员膝关节肌力特征的研究 |
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| 引用本文： | 武晓莉.不同角速度下自行车运动员膝关节肌力特征的研究[J].体育科技文献通报,2011,19(10):124-126. |
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| 作者姓名： | 武晓莉 |
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| 作者单位： | 苏州大学体育学院,江苏苏州,215021 |
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| 摘 要： | 方法：利用CONTREX等速肌力测试与训练系统，以180°／s、120°／s、60°／s3种角速度对苏州市自行车训练队26名运动员右腿膝关节进行等速向心屈伸测试。目的：分析自行车运动员不同角速度下等速向心收缩与膝关节肌肌力的关系及肌力特征。结果：1、屈伸肌峰力矩随速度的增加呈减小趋势。2、到达峰力矩的时间随测试速度的增加而缩短。且男女运动员在180°／s与120°／s组间均无显著差异。3、膝关节相对平均功率伸肌均大于屈肌，120°／ts时，屈伸肌的相对平均功率最大。4、屈伸肌比在64．8％～70．6％内，有随速度增加而增加的趋势。结论：以60°／s的角速度训练肌肉最大力量效果更明显；爆发力在120°／s时训练效果最佳；屈／伸肌比值（H／Q）在正常范围内，但低于优秀运动员（优秀运动员可达80％以上）。
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| 关 键 词： | 自行车运动 膝关节肌群 等速测试 肌力特征 |
Study on Characteristics of Knee Muscle Strength of Cyclist under Different Angular Velocities |
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| WU Xiao-li College of Physical Education,Soochow University,Suzhou ,Jiangsu China..Study on Characteristics of Knee Muscle Strength of Cyclist under Different Angular Velocities[J].Bulletin of Sport Science & Technology,2011,19(10):124-126. |
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| Authors: | WU Xiao-li College of Physical Education Soochow University Suzhou Jiangsu China |
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| Institution: | WU Xiao-li College of Physical Education,Soochow University,Suzhou 215021,Jiangsu China. |
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| Abstract: | Methods： Using of CONTREX Isokinetic testing and training system, with 180 °/s, 120 °/s, 60 °/s 3 species angular velocity, the right knee flexion and extension isokinetic of 26 cyclists from Suzhou cycling team is tested. Objective： To analyze the cyclist under different velocity isokinetic concentric contraction and the relationship between knee muscle strength and muscle characteristics. Results： 1 ） Muscle flexion and extension peak torque increased with a decreasing trend rate. 2）The time to reach peak torque increase with test speed reduced. And male and female athletes in the 180 °/s and 120 °/s were not significantly different between groups. 3） The relative average power of knee extensor were greater than flexor, 120 °/s, the flexor, extensor maximum relative average power. 4） Extensors and flexors than in the 64.8% 70.6%, the rate has increased with the trend. Conclusion ： 60 °/s angular velocity of the maximum muscle strength training effect was more obvious ; explosive at 120 °/s when the training is best; flexor/extensor ratio （H/Q） in the normal range, but below the top athletes. |
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| Keywords: | cyclist knee muscles isokinetic testing strength characteristics |
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