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JOURNAL
OF
SPORTS SCIENCE &
MEDICINE
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Research
article
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EFFECTS OF VIBRATION TRAINING AND DETRAINING ON BALANCE AND MUSCLE STRENGTH IN OLDER ADULTS |
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Pedro J. Marín1,2  ,
Aurora Martín-López3, Davinia Vicente-Campos4,5, MT
Angulo-Carrere4, Teresa García-Pastor6, Nuria Garatachea7
and José L. Chicharro4 |
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1Laboratory of Physiology, European University Miguel de Cervantes, Valladolid, Spain, 2Research Center on Physical Disability, ASPAYM Castilla y León, Valladolid, Spain, 3Residence of the Third Age "Grupo Los Nogales - Santa Eugenia", Madrid, Spain, 4School of Nursing, Complutense University of Madrid, Madrid, Spain, 5University Francisco de Vitoria, Madrid, Spain, 6University Camilo José Cela, Madrid, Spain, 7Faculty of Health and Sport Science, University of Zaragoza, Spain |
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© Journal of Sports Science and Medicine (2011) 10, 559 - 564 |
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| ABSTRACT | |||
| The purpose of this study was to analyze the effects of 2 days/week
versus 4 days/week of Whole Body Vibration (WBV) during eight weeks of WBV
training on health-related quality of life (SF-36), balance and lower body
strength, as well as short-term detraining (3 weeks) on balance and lower
body strength among older adults. Thirty-four older adults were randomly
assigned to a control group (Control; n = 11) or to one of the vibration
training groups: WBV 2 days/week (WBV_2d; n = 11) or WBV 4 days/week (WBV_4d;
n = 12). The WBV groups exercised for 8 weeks, following 3 weeks of detraining.
Lower body strength increased significantly (p < 0.05) for both groups,
WBV_2d and WBV_4d, after 8-week training. A significant reduction in strength
was observed following 3 weeks of detraining only in WBV_2d group (p <
0.05). All variables of the SF-36 and the balance test did not change after
intervention in any group. 2 days/week and 4 days/week of WBV during 8 weeks
showed the same improvements on muscle strength. 3 weeks of detraining did
not reverse the gains in strength made during 32 sessions of WBV. Key words: Whole-body vibrations, posturography, dose-response, equilibrium. |
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