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Changes in Motor Unit Activity and Respiratory Oxygen Uptake during 6 Weeks of Progressive Whole-Body Vibration Combined with Progressive, High Intensity Resistance Training

Rosenberger, Andre and Beijer, Asa and Schoenau, Eckhard and Mester, Joachim and Rittweger, Jörn and Zange, Jochen (2019) Changes in Motor Unit Activity and Respiratory Oxygen Uptake during 6 Weeks of Progressive Whole-Body Vibration Combined with Progressive, High Intensity Resistance Training. Journal of Musculoskeletal and Neuronal Interactions, 19 (2), pp. 159-168. International Society of Musculoskeletal and Neuronal Interactions. ISSN 1108-7161

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Abstract

We hypothesized that the additional activation of motor units (MU) and the elevation of metabolic energy turnover resulting from whole-body vibration (WBV) superimposed to high intensity resistance training on a smith machine persist after 6 weeks of training with progressively increasing loads and vibration frequencies. Methods: Two Groups of healthy male subjects performed either 6 weeks of Resistive Vibration Exercise (RVE, squats and heel raises with WBV, n=13) or Resistive Exercise (RE using the same protocol, n=13). During the first (pre) and the last training session (post), we determined the oxygen uptake changes normalized to total training weight (∆V’O2/ttw) and the normalized MU activity from rectus femoris (squats) and gastrocnemius lateralis (heel raise) muscles filtered for vibration frequencies and harmonics (EMG/ttw). Results: At pre measurement, RVE induced higher EMG/ttw (squats) than RE alone (group effect, P=0.006). At post measurement, EMG/ttw was reduced (time effects between P=0.087 and P<0.001 for both Groups and exercises). At pre and post measurement, ∆V’O2/ttw was higher during RVE than during RE (group effects between P=0.005 and P=0.099 for both exercises). Conclusions: RVE permanently elevated metabolic energy turnover, although the initially observed additional MU activity by RVE could not be preserved in the working musculature.

Item URL in elib:https://elib.dlr.de/128153/
Document Type:Article
Title:Changes in Motor Unit Activity and Respiratory Oxygen Uptake during 6 Weeks of Progressive Whole-Body Vibration Combined with Progressive, High Intensity Resistance Training
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Rosenberger, AndreAndre.Rosenberger (at) dlr.deUNSPECIFIED
Beijer, Asaasa.beijer (at) dlr.deUNSPECIFIED
Schoenau, Eckharduniversity childrens hospital, cologne, germanyUNSPECIFIED
Mester, JoachimGerman Sport University CologneUNSPECIFIED
Rittweger, JörnJoern.Rittweger (at) dlr.dehttps://orcid.org/0000-0002-2223-8963
Zange, JochenJochen.Zange (at) dlr.dehttps://orcid.org/0000-0003-1822-0952
Date:2019
Journal or Publication Title:Journal of Musculoskeletal and Neuronal Interactions
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:19
Page Range:pp. 159-168
Publisher:International Society of Musculoskeletal and Neuronal Interactions
ISSN:1108-7161
Status:Published
Keywords:Strength Training, Squats, Heel Raises, EMG, Spirometry
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):R - Vorhaben Systemphysiologie
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Muscle and Bone Metabolism
Deposited By: Becker, Christine
Deposited On:27 Jun 2019 15:53
Last Modified:27 Jun 2019 15:53

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