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首页> 外文期刊>Sports Biomechanics >Whole-body vibration effects on the muscle activity of upper and lower body muscles during the baseball swing in recreational baseball hitters
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Whole-body vibration effects on the muscle activity of upper and lower body muscles during the baseball swing in recreational baseball hitters

机译：休闲棒球击球手在挥杆过程中全身振动对上下肌肉的肌肉活动的影响

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摘要

The purpose of this study was to evaluate the effects of whole-body vibration (WBV) on the muscle recruitment of selected upper and lower body muscles during the baseball swing. Participants were recreationally trained males (n = 16, 22 ± 2 years, 181.4 ± 7.4 cm, 84.7 ± 9.0 kg), with previous baseball experience. Subjects participated in three randomized sessions on separate days, consisting of three sets of five swings off a hitting tee. Exercises (upper and lower body dynamic and static movements) with or without WBV exposure were performed between swing sets. During each swing, the gastrocnemius, biceps femoris, gluteus maximus, pectoralis major, latissimus dorsi, and triceps brachii were evaluated for electromyographic (EMG) activity. EMG values were normalized to EMG measured during maximal voluntary isometric contraction. Statistical analysis revealed no significant differences in EMG activity across the three treatments. In addition, the results displayed a specific muscle recruitment order during the swing, starting with the lower body followed by the upper body muscles. This study was the first to report the recruitment order during the baseball swing. Although acute exposure to WBV did not significantly alter the muscle recruitment, these results may prove useful for practitioners looking to enhance baseball swing performance.
机译：这项研究的目的是评估在棒球挥杆过程中全身振动（WBV）对选定的上，下身肌肉的肌肉募集的影响。参加者是经过休闲训练的男性（n = 16、22±2岁，181.4±7.4厘米，84.7±9.0公斤），并且有过棒球经验。受试者分别在不同的日子参加了三场随机训练，包括三组，每组5个挥杆击球。在秋千之间进行有或没有WBV暴露的运动（上下身体的动态和静态运动）。在每个摆动过程中，评估腓肠肌，股二头肌，臀大肌，胸大肌，背阔肌和肱三头肌的肌电图（EMG）活性。将EMG值标准化为最大自愿等距收缩期间测得的EMG。统计分析表明，三种治疗方法的EMG活性无明显差异。此外，结果显示了挥杆过程中特定的肌肉募集顺序，从下半身开始，然后是上半身肌肉。这项研究是第一个报告棒球挥杆期间招募顺序的报告。尽管急性暴露于WBV并没有显着改变肌肉的募集，但这些结果可能对希望增强棒球挥杆表现的练习者有用。

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