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. 2016 Nov 18;7(11):758-765.
doi: 10.5312/wjo.v7.i11.758.

Stochastic resonance whole body vibration increases perceived muscle relaxation but not cardiovascular activation: A randomized controlled trial

Achim Elfering  1 , Christian Burger  1 , Volker Schade  1 , Lorenz Radlinger  1
Affiliations

Stochastic resonance whole body vibration increases perceived muscle relaxation but not cardiovascular activation: A randomized controlled trial

Achim Elfering et al. World J Orthop. .

Abstract

Aim: To investigate the acute effects of stochastic resonance whole body vibration (SR-WBV), including muscle relaxation and cardiovascular activation.

Methods: Sixty-four healthy students participated. The participants were randomly assigned to sham SR-WBV training at a low intensity (1.5 Hz) or a verum SR-WBV training at a higher intensity (5 Hz). Systolic blood pressure (SBP), diastolic blood pressure (DBP), heart rate (HR) and self-reported muscle relaxation were assessed before and immediately after SR-WBV.

Results: Two factorial analyses of variance (ANOVA) showed a significant interaction between pre- vs post-SR-WBV measurements and SR-WBV conditions for muscle relaxation in the neck and back [F(1,55) = 3.35, P = 0.048, η2 = 0.07]. Muscle relaxation in the neck and back increased in verum SR-WBV, but not in sham SR-WBV. No significant changes between pre- and post-training levels of SBD, DBD and HR were observed either in sham or verum SR-WBV conditions. With verum SR-WBV, improved muscle relaxation was the most significant in participants who reported the experience of back, neck or shoulder pain more than once a month (P < 0.05).

Conclusion: A single session of SR-WBV increased muscle relaxation in young healthy individuals, while cardiovascular load was low. An increase in musculoskeletal relaxation in the neck and back is a potential mediator of pain reduction in preventive worksite SR-WBV trials.

Keywords: Blood pressure; Heart rate; Low back pain; Musculoskeletal system; Prevention.

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Conflict of interest statement

Conflict-of-interest statement: All author(s) state that for the current paper there is no financial or other relationship that might lead to a conflict of interest. There is no financial or other involvement of any stakeholders.

Figures

Figure 1
Figure 1
Starting position on stochastic resonance whole body vibration device.
Figure 2
Figure 2
Self-reported muscle relaxation before and after stochastic resonance whole body vibration.
Figure 3
Figure 3
Change in self-reported muscle relaxation by stochastic resonance whole body vibration and back, neck or shoulder pain in last 12 mo before stochastic resonance whole body vibration.
See this image and copyright information in PMC

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