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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Petit, Pierre-David Pensini, Manuela Tessaro, Joël Desnuelle, Claude Legros, Patrick Colson, Serge S. |
| Description | Country affiliation: France Author Affiliation: Petit PD ( University of Nice-Sophia Antipolis, Laboratory of Human Motricity, Education and Health, Faculty of Sport Sciences, B.P. 3259, F 06205 Nice Cedex 3, France.) |
| Abstract | This study compared the effects of 6-week whole-body vibration (WBV) training programs with different frequency and peak-to-peak displacement settings on knee extensor muscle strength and power. The underlying mechanisms of the expected gains were also investigated. Thirty-two physically active male subjects were randomly assigned to a high-frequency/high peak-to-peak displacement group (HH; n=12), a low-frequency/low peak-to-peak displacement group (LL; n=10) or a sham training group (SHAM; n=10). Maximal voluntary isometric, concentric and eccentric torque of the knee extensors, maximal voluntary isometric torque of the knee flexors, jump performance, voluntary muscle activation, and contractile properties of the knee extensors were assessed before and after the training period. Significant improvement in knee extensor eccentric voluntary torque (P<0.01), knee flexor isometric voluntary torque (P<0.05), and jump performance (P<0.05) was observed only for HH group. Regardless of the group, knee extensor muscle contractile properties (P<0.05) were enhanced. No modification was observed for voluntary muscle activation or electrical activity of agonist and antagonist muscles. We concluded that high-frequency/high peak-to-peak displacement was the most effective vibration setting to enhance knee extensor muscle strength and jump performance during a 6-week WBV training program and that these improvements were not mediated by central neural adaptations. |
| File Format | HTM / HTML |
| ISSN | 10506411 |
| Issue Number | 6 |
| Volume Number | 20 |
| e-ISSN | 18735711 |
| Journal | Journal of Electromyography and Kinesiology |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2010-12-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Cardiology Knee Physiology Muscle Strength Muscle, Skeletal Vibration Athletic Performance Electromyography Humans Male Muscle Contraction Physical Fitness Random Allocation Torque Young Adult Journal Article |
| Content Type | Text |
| Resource Type | Article |
| Subject | Neuroscience Neurology (clinical) Biophysics Sports Science |
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