Chronic effects of whole-body vibration on jumping performance and body balance using different frequencies and amplitudes with identical acceleration load

被引:18
作者
Chen, Chia-Hsiang [1 ]
Liu, Chiang [2 ]
Chuang, Long-Ren [3 ]
Chung, Pao-Hung [2 ]
Shiang, Tzyy-Yuang [4 ]
机构
[1] Natl Taiwan Normal Univ, Dept Phys Educ, Taipei, Taiwan
[2] Taipei Phys Educ Coll, Grad Inst Sports Equipment Technol, Taipei, Taiwan
[3] Chinese Culture Univ, Dept Chinese Martial Arts, Taipei, Taiwan
[4] Natl Taiwan Normal Univ, Grad Inst Sports & Exercise Sci, Taipei, Taiwan
关键词
Whole body vibration training; Countermovement jump; Static single leg stance; MUSCLE-ACTIVITY; MUSCULAR PERFORMANCE; EXERCISE; STRENGTH; STEADINESS; INCREASE; REFLEX;
D O I
10.1016/j.jsams.2013.02.010
中图分类号
G8 [体育];
学科分类号
04 ; 0403 ;
摘要
Previous studies on vibration training have all been based on protocols at different combinations of frequencies and amplitudes without controlling the loading intensity. Objectives: This study investigated the effect of an 8-week vibration training program, under identical acceleration loads with various frequencies and amplitudes, on jumping performance, muscle activation and body balance. Design: Fifty young adults were randomly assigned to an high-frequency (32 Hz, 1 mm, and 4 g), low-frequency (18 Hz, 3 mm, and 4g), or a control group. The high-frequency and low-frequency groups underwent 60 s of squats exercise on the specific vibration platform three times a week, whereas the control group was trained without vibration. Methods: A force platform was used to measure the center of pressure of a static single leg stance, and the heights and impulse of two consecutive countermovement jumps before and after intervention. The activation of the rectus femoris and biceps femoris were also measured synchronously by surface electromyography. Results: The heights and impulse of both the first and second countermovement jumps were significantly increased and the area of center of pressure was significantly decreased after training in both the high-frequency and low-frequency groups (P<.05). Consequently, activation of the rectus femoris during the first countermovement jump was significantly lower than the pre-training value in the HF group but increased in the low-frequency group after training (P<.05). Conclusions: An 8-week identical acceleration vibration training regimen with various frequencies and amplitudes can significantly improve jumping performance and body balance, but the specific neuromuscular adaptation is possibly induced by different training settings. (C) 2013 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:107 / 112
页数:6
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