Whole-body vibration effects on the muscle activity of upper and lower body muscles during the baseball swing in recreational baseball hitters

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 baseba...

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Bibliographic Details
Published in:Sports biomechanics 2011-11, Vol.10 (4), p.280-293
Main Authors: Reyes, Gabriel F. "Cisco", Dickin, D. Clark, Crusat, Nolan J.K., Dolny, Dennis G.
Format: Article
Language:English
Subjects:
Adolescent
Adult
Athletes
Athletic Performance - physiology
Baseball
Baseball - physiology
Baseball performance
Electromyography
Exercise
Humans
Isometric Contraction - physiology
Lower Extremity - physiology
Male
Movement - physiology
Muscle, Skeletal - physiology
Muscular system
Random Allocation
recruitment order
Recruitment, Neurophysiological - physiology
Statistical analysis
Upper Extremity - physiology
Vibration
Young Adult
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Summary: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.
ISSN:1476-3141
1752-6116
DOI:10.1080/14763141.2011.629208