Vestibular control of deep and superficial lumbar muscles

Author:

Gallina Alessio12ORCID,Abboud Jacques3ORCID,Blouin Jean-Sébastien456ORCID

Affiliation:

1. School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, United Kingdom

2. Centre of Precision Rehabilitation for Spinal Pain, School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, United Kingdom

3. Département des Sciences de l’Activité Physique, Université du Québec à Trois-Rivières, Trois-Rivières, Quebec, Canada

4. School of Kinesiology, University of British Columbia, Vancouver, British Columbia, Canada

5. Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, British Columbia, Canada

6. Institute for Computing, Information and Cognitive Systems, University of British Columbia, Vancouver, British Columbia, Canada

Abstract

We investigated the vestibular control of the deep and superficial lumbar extensor muscles using electrical vestibular stimuli. Vestibular stimuli elicited preferential activation of the longissimus muscle over the multifidus muscle. We did not observe clear regional activation of lumbar muscle subregions in response to the vestibular stimuli. Our findings show that the central nervous system can finely tune the vestibular control of individual lumbar muscles and suggest minimal regional variations in the activation of lumbar muscle subregions.

Funder

Gouvernement du Canada | Natural Sciences and Engineering Research Council of Canada

Publisher

American Physiological Society

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