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首页> 美国卫生研究院文献>Applied Bionics and Biomechanics >Upper Limb Neuromuscular Activities and Synergies Comparison between Elite and Nonelite Athletics in Badminton Overhead Forehand Smash
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Upper Limb Neuromuscular Activities and Synergies Comparison between Elite and Nonelite Athletics in Badminton Overhead Forehand Smash

机译：羽毛球正手击球中优秀和非优秀运动员的上肢神经肌肉活动和协同作用比较

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摘要

This study is aimed at comparing muscle activations and synergies in badminton forehand overhead smash (BFOS) between elite and nonelite players to clarify how the central nervous system (CNS) controls neuromuscular synergy and activation to generate complex overhead movements. EMG of five upper limb muscles was recorded through surface electromyography (EMG) electrodes from twenty players. Athletics is divided into two groups: elite and nonelite. Eventually, nonnegative matrix factorization (NNMF) was utilized to the calculated electromyography signals for muscle synergy comparison. Similarities between elite and nonelite groups were calculated by scalar product method. Results presented that three muscles synergies could sufficiently delineate the found electromyography signals for elite and nonelite players. Individual muscle patterns were moderately to highly similar between elite and nonelite groups (between-group similarity range: 0.52 to 0.90). In addition, high similarities between groups were found for the shape of synergy activation coefficients (range: 0.85 to 0.89). These results indicate that the synergistic organization of muscle coordination during badminton forehand overhead smash is not profoundly affected by expertise.
机译：这项研究旨在比较精英运动员和非精英运动员之间羽毛球正手头顶粉碎动作（BFOS）的肌肉激活和协同作用，以阐明中枢神经系统（CNS）如何控制神经肌肉协同作用和激活以产生复杂的头顶运动。通过二十名运动员的表面肌电图（EMG）电极记录了五只上肢肌肉的肌电图。田径运动分为两组：精英和非精英。最终，将非负矩阵分解（NNMF）用于计算的肌电信号，以进行肌肉协同作用比较。精英组和非精英组之间的相似性通过标量积方法计算。结果表明，三种肌肉协同作用可以充分描述精英和非精英运动员的肌电信号。精英组和非精英组之间的个体肌肉模式为中度至高度相似（组间相似度范围为0.52至0.90）。此外，发现组间的协同激活系数形状高度相似（范围：0.85至0.89）。这些结果表明，羽毛球正手头顶粉碎过程中肌肉协调的协同组织并未受到专业技能的深刻影响。

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