The effects of vibration on explosive and reactive strength when applying individualized vibration frequencies.

Abstract

The aim of this study was to assess the effects of 8 weeks of whole-body vibrations on explosive and reactive leg strength. Thirty-three physically active students took part in the study and were randomly assigned to an individualized-vibration group, a fixed-vibration group or a control group. The frequency of vibration was set to 30 Hz for the fixed-vibration group, whereas the frequency for the individualized-vibration group was determined by monitoring the participants' EMGrms activity. The participants in the two vibration groups were exposed three times a week for 8 weeks to a series of 10 x 1-min whole-body vibrations with a 1-min pause between series of vibrations and a 4-min pause after the first five series of vibrations. Jump height in the squat jump increased significantly in all three groups (by 11% for the individualized-vibration group, p=0.001; by 3% for the fixed-vibration group, p=0.011; and by 2% for the control group, p=0.006), but countermovement jump height was not affected. In continuous rebound jumps by the individualized-vibration group, jumping height increased by 22% (p=0.006) and power increased by 18% (p=0.002). The results of this study suggest that the use of an individualized vibration frequency produces a greater response from the neuromuscular system and is more beneficial than vibrations at a fixed pre-selected frequency.

DOI: 10.1080/02640410802495344

Cite this paper

@article{Giminiani2009TheEO, title={The effects of vibration on explosive and reactive strength when applying individualized vibration frequencies.}, author={Riccardo Di Giminiani and J{\'o}zsef Tihanyi and S{\'a}ndor S{\'a}f{\'a}r and Renato Scrimaglio}, journal={Journal of sports sciences}, year={2009}, volume={27 2}, pages={169-77} }