Specific brain activation patterns associated with two neuromuscular electrical stimulation protocols.

Details

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State: Public
Version: Final published version
Serval ID
serval:BIB_0D8F7E514C01
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Specific brain activation patterns associated with two neuromuscular electrical stimulation protocols.
Journal
Scientific reports
Author(s)
Wegrzyk J., Ranjeva J.P., Fouré A., Kavounoudias A., Vilmen C., Mattei J.P., Guye M., Maffiuletti N.A., Place N., Bendahan D., Gondin J.
ISSN
2045-2322 (Electronic)
ISSN-L
2045-2322
Publication state
Published
Issued date
02/06/2017
Peer-reviewed
Oui
Volume
7
Number
1
Pages
2742
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: epublish
Abstract
The influence of neuromuscular electrical stimulation (NMES) parameters on brain activation has been scarcely investigated. We aimed at comparing two frequently used NMES protocols - designed to vary in the extent of sensory input. Whole-brain functional magnetic resonance imaging was performed in sixteen healthy subjects during wide-pulse high-frequency (WPHF, 100 Hz-1 ms) and conventional (CONV, 25 Hz-0.05 ms) NMES applied over the triceps surae. Each protocol included 20 isometric contractions performed at 10% of maximal force. Voluntary plantar flexions (VOL) were performed as control trial. Mean force was not different among the three protocols, however, total current charge was higher for WPHF than for CONV. All protocols elicited significant activations of the sensorimotor network, cerebellum and thalamus. WPHF resulted in lower deactivation in the secondary somatosensory cortex and precuneus. Bilateral thalami and caudate nuclei were hyperactivated for CONV. The modulation of the NMES parameters resulted in differently activated/deactivated regions related to total current charge of the stimulation but not to mean force. By targeting different cerebral brain regions, the two NMES protocols might allow for individually-designed rehabilitation training in patients who can no longer execute voluntary movements.
Keywords
Adult, Brain Mapping, Caudate Nucleus/diagnostic imaging, Caudate Nucleus/physiology, Cerebellum/diagnostic imaging, Cerebellum/physiology, Electric Stimulation, Female, Humans, Isometric Contraction/physiology, Magnetic Resonance Imaging/methods, Male, Muscle Contraction/physiology, Muscle Fatigue/physiology, Muscle, Skeletal/innervation, Muscle, Skeletal/physiology, Sensorimotor Cortex/diagnostic imaging, Sensorimotor Cortex/physiology, Thalamus/diagnostic imaging, Thalamus/physiology
Pubmed
Web of science
Open Access
Yes
Create date
19/06/2017 7:43
Last modification date
20/08/2019 12:34
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