| 我国部分优秀男子跳远运动员起跳环节肌肉用力特征 |
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| 引用本文： | 刘述芝,吴瑛,李玉章.我国部分优秀男子跳远运动员起跳环节肌肉用力特征[J].上海体育学院学报,2011,35(2). |
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| 作者姓名： | 刘述芝 吴瑛 李玉章 |
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| 作者单位： | 上海体育学院,体育教育训练学院,上海,200438 |
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| 基金项目： | 上海市科学技术委员会重点科研计划项目，上海市教委重点学科建设资助项目 |
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| 摘 要： | 通过表面肌电遥测和高速摄影同步测试,揭示优秀跳远运动员起跳环节肌肉用力特征.结果显示:在起跳环节中,股外侧肌、股内侧肌、股二头肌、比目鱼肌、腓肠肌是起跳腿的主要用力肌肉;在起跳腿即将着地前,所测肌肉均有较明显的预激活现象;着地后,肌肉用力的激活顺序依次为胫骨前肌、股二头肌与股内侧肌、股外侧肌、比目鱼肌、腓肠肌内侧头、股直肌、臀大肌;肌肉用力的失活顺序依次为胫骨前肌、股直肌、股内侧肌、股外侧肌、臀大肌、腓肠肌、股二头肌、比目鱼肌;肌肉用力持续时间长短依次为股二头肌、比目鱼肌、股外侧肌、腓肠肌内侧头和股内侧肌、臀大肌、股直肌、胫骨前肌.起跳腿拮抗肌共同收缩的特征为:缓冲阶段踝关节拮抗肌共同收缩最强烈,而在蹬伸阶段膝关节拮抗肌共同收缩最强烈.
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| 关 键 词： | 中国 男子跳远运动员 起跳环节 缓冲 蹬伸 表面肌电 肌肉 用力特征 |
On Features of Muscle Exertion of Some Chinese Elite Male Long-Jumpers during Take-Off Phrase |
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| LIU Shu-zhi,WU Ying,LI Yu-zhang.On Features of Muscle Exertion of Some Chinese Elite Male Long-Jumpers during Take-Off Phrase[J].Journal of Shanghai Physical Education Institute,2011,35(2). |
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| Authors: | LIU Shu-zhi WU Ying LI Yu-zhang |
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| Institution: | LIU Shu-zhi,WU Ying,LI Yu-zhang School of Physical Education,Shanghai University of Sport,Shanghai 200438,China |
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| Abstract: | Through the synchronized surface electromyography telemetry and high-speed photography,the present paper explored the muscle exertion features of some elite long-jumpers during the take-off phase.The results showed that during the take-off phase, vastus lateralis,vastus medialis,biceps femoris,soleus, gastrocnemius were the major exerting muscles of the take-off leg. Just before the touchdown of the take-off leg,all the measured muscles showed obvious pre-activation phenomenon;after the touchdown,the exerti... |
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| Keywords: | China male long-jumpers take-off phase buffering extending surface electromyogram muscle exertion feature |
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