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Comparing muscle temperature during static and dynamic squatting with and without whole-body vibration

Cochrane, Darryl J and Stannard, Stephen and Firth, Elwyn and Rittweger, Jörn (2010) Comparing muscle temperature during static and dynamic squatting with and without whole-body vibration. Clinical Physiology and Functional Imaging, 30 (4), pp. 223-229.

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Abstract

The aim of this study was to investigate the influence of shallow dynamic squatting (DS) versus static squatting (SS) with or without concurrent side-to-side alternating whole-body vibration (WBV) on vastus lateralis temperature and cardiovascular stress as indicated by heart rate (HR). Ten participants (five men, five women) participated in four interventions [DS with WBV (DS+), DS without WBV (DS-), SS with WBV (SS+), SS without WBV (SS-)] 48 h apart, in a randomized order. The interventions were preceded by a approximately 20-min rest period, consisted of 10 mins with or without WBV (26 or 0 Hz) with SS (40 degrees of knee flexion) or DS (55 degrees of knee flexion, at a cadence of 50 bpm) where SS+ and DS- were metabolically matched. Muscle (T(m)), core (T(c)), skin temperature (T(sk)), HR and VO(2) were recorded during each intervention. For T(m), there was a time (P<0.01) and WBV (P<0.01) effect but no squat effect was evident, and there was time xWBV interaction effect (P<0.01). In all four interventions, the work load was too low to cause cardiovascular stress. Instead normal, moderate physiological effects of exercise on autonomic control were observed as indicated by HR; there were no significant increases in T(sk) or T(c). There appears to be no benefit in performing an unloaded, shallow DS+ at a tempo of 50 bpm as T(m,) HR, VO(2) are likely to be increased by the same amount and rate without WBV. However, combining SS with WBV could be advantageous to rapidly increasing soft tissue temperature prior to performing rehabilitation exercises when dynamic exercise cannot be performed.

Document Type:Article
Title:Comparing muscle temperature during static and dynamic squatting with and without whole-body vibration
Authors:
AuthorsInstitution or Email of Authors
Cochrane, Darryl JD.Cochrane@massey.ac.nz
Stannard, Stephen S.Stannard@massey.ac.nz
Firth, ElwynE.Firth@massey.ac.nz
Rittweger, Jörnjoern.rittweger@dlr.de
Date:July 2010
Journal or Publication Title:Clinical Physiology and Functional Imaging
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:30
Page Range:pp. 223-229
Keywords:Vibration exercise, Muscle temperature, Muscle energetics
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W FR - Forschung unter Weltraumbedingungen (old)
DLR - Research area:Space
DLR - Program:W FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):W - Vorhaben Integrative Studien (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Space Physiology
Deposited By: Jörn Rittweger
Deposited On:01 Sep 2010 11:18
Last Modified:07 Feb 2013 21:04

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