Effect of 4-min vertical whole body vibration on muscle performance and body balance : a randomized cross-over study
Deutscher übersetzter Titel: | Wirkung einer vierminütigen vertikalen Ganzkörpervibration auf die Muskelleistung und die Körperbalance : eine randomisierte Kreuzstudie |
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Autor: | Torvinen, S.; Sievänen, H.; Järvinen, T.A.H.; Pasanen, M.; Kontulainen, S.; Kannus, P. |
Erschienen in: | International journal of sports medicine |
Veröffentlicht: | 23 (2002), 5, S. 374-379, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource Elektronische Ressource (online) |
Sprache: | Englisch |
ISSN: | 0172-4622, 1439-3964 |
DOI: | 10.1055/s-2002-33148 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU200406001915 |
Quelle: | BISp |
Abstract des Autors
The purpose of this randomized cross-over study was to investigate the effects of a 4-min long, 2-mm vertically-vibrating vibration-exercise on muscle performance and body balance in healthy subjects. Sixteen volunteers (eight men and women aged 18-35 years) underwent both the 4-min vibration- and sham-interventions in a randomized order on different days. Performance- and balance-tests (stability platform, grip strength, extension strength of lower extremities, tandem-walk, vertical jump and shuttle-run) were done 10 minutes before (baseline) and 2 and 60 minutes after the intervention. In addition, the effect of vibration on the surface electro-myography (EMG) of soleus, vastus lateralis, gluteus medius, and paravertebralis muscles was investigated during the vibration. The 4-min vibration-loading did not induce any statistically significant change in the performance- or balance-tests at the 2- or 60-min tests. Interestingly, however, the mean power frequency of the EMG in the vastus lateralis and gluteus medius muscles decreased during the vibration-intervention, indicating muscle fatigue, particularly in the hip region. It was concluded that a 4-min long, 2-mm vertically-vibrating vibration-stimulus did not induce changes in the performance and balance tests. Future studies should focus on evaluating the effects of different kinds of vibration-regimens, as well as the long-term effects of vibration-training, on body balance and muscle performance, and, as a broader objective, on bone. Verf.-Referat