| 优秀跳远运动员起跳环节支撑腿表面肌电活动特征研究 |
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| 引用本文： | 刘述芝,吴瑛.优秀跳远运动员起跳环节支撑腿表面肌电活动特征研究[J].河北体育学院学报,2010,24(6):65-69. |
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| 作者姓名： | 刘述芝 吴瑛 |
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| 作者单位： | [1]上海体育学院研究生部,上海200438 [2]上海体育学院教务处,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 |
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| 摘 要： | 通过表面肌电和运动学同步测试,揭示优秀跳远运动员起跳环节下肢肌肉表面肌电活动特征。研究结果表明：运动员起跳过程中比目鱼肌、腓肠肌、股外侧肌、股内侧肌是起跳腿的主要发力肌肉;所测肌肉最大发力时的顺序为：胫骨前肌首先发力,股外侧肌和股内侧肌次之,腓肠肌、比目鱼肌、股二头肌依次最后发力至最大;在整个起跳环节,踝关节和膝关节的拮抗肌共激活水平较高,其中尤以缓冲阶段踝关节的共激活水平最高。上述特征提示,在专项训练实践中,教练员应设计与跳远起跳用力特征相一致的专项力量训练手段,以打造出良好的专项力量素质。
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| 关 键 词： | 跳远 起跳 支撑腿 缓冲 蹬伸 表面肌电 肌电活动 |
Elite Long Jumpers' Characteristics of Muscle Activation during Take-off |
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| LIU Shu-zhi,WU Ying.Elite Long Jumpers' Characteristics of Muscle Activation during Take-off[J].Journal of Hebei Institute of Physical Education,2010,24(6):65-69. |
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| Authors: | LIU Shu-zhi WU Ying |
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| Institution: | 1.Graduate School,Shanghai University of Sport,Shanghai 200438,China;2.Academic Affairs Department,Shanghai University of Sport,Shanghai 200438,China ) |
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| Abstract: | Simultaneous surface electromyography and kinematic photographing were used to investigate elite long-jumpers,muscle exertion characteristics during take-off phrase.Results：soleus,medial gastrocnemius,lateral vastus and medial vastus were the dominating exerting muscles;the proper exerting order of measured muscles was ranked according to the time head of peak amplitude：tibialis anterior,lateral vastus,medial vastus,medial gastrocnemius,soleus,biceps femoris;during take-off phrase,co-activation of antagonistic muscle was relatively high,esp.that of the ankle and knee;but during buffering phrase,ankle was highest.That means： when designing special force training methods,the coach should pay attention to the physical exertion of muscles during take-off phrase so as to build better force. |
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| Keywords: | long-jump take-off supporting leg buffering pedal to stretch surface electromyography muscle activation |
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