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Article Publish Status: FREE
Abstract Title:

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

Abstract Source:

World J Orthop. 2016 Nov 18 ;7(11):758-765. Epub 2016 Nov 18. PMID: 27900274

Abstract Author(s):

Achim Elfering, Christian Burger, Volker Schade, Lorenz Radlinger

Article Affiliation:

Achim Elfering

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,η(2) = 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 mostsignificant 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.

Study Type : Human Study

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Sayer Ji
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