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KMID : 1211620150100040101
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Journal of the Korean Society of Physical Medicine
2015 Volume.10 No. 4 p.101 ~ p.106
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Effects of an 8-week Vibration Exercise Program on Quadriceps and Hamstring Maximum Strength and Balance in Male and Female College Students
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Ha Kyung-Jin
Lee Sang-Yeol
Choi Seung-Jun
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Abstract
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PURPOSE : Application of an oscillating program for the lower extremities is an effective training method for increasing muscle strength. However, no oscillatory program has yet been identified to confirm the effectiveness of oscillation for balance ability and maximum muscle strength. We investigated the effects of an 8-week vibration exercise program on the maximum muscle strength and balance of the lower extremities.
METHODS : Research subjects participating in the study were 22 male and female college students with no past history of diseases of the nervous or musculoskeletal systems. All subjects were randomly divided into two groups and performed their assigned experimental treatment 3 times a week over a period of 20 min for 8 weeks. Maximum strength of the quadriceps extension, flexion, and balance ability were measured using Biodex System 4 and Biodex balance systems.
RESULTS : The 8-week oscillation program resulted in a significant increase in quadriceps extension and flexion strength in both male and female participants (p<.05). The balance ability also showed a significant improvement after the oscillation program (p<.05). The balance value was higher for male 17% than for female 21% (p<.05) participants.
CONCLUSION : An 8-week oscillation program led to an increase in the strength of knee flexion and extension. The balance ability also improved significantly. This positive effect on balance ability was higher in female than in male subjects.
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KEYWORD
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Whole body vibration exercise, Dynamic standing balance, Strength of lower limb
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