Anodal tDCS over the primary motor cortex improves motor imagery benefits on postural control: A pilot study.

TitreAnodal tDCS over the primary motor cortex improves motor imagery benefits on postural control: A pilot study.
Publication TypeJournal Article
Year of Publication2017
AuthorsSaruco E, Di Rienzo F, Nunez-Nagy S, Rubio-Gonzalez MA, Jackson PL, Collet C, Saimpont A, Guillot A
JournalSci Rep
Volume7
Issue1
Pagination480
Date Published2017 Mar 28
ISSN2045-2322
Abstract

Performing everyday actions requires fine postural control, which is a major focus of functional rehabilitation programs. Among the various range of training methods likely to improve balance and postural stability, motor imagery practice (MIP) yielded promising results. Transcranial direct current stimulation (tDCS) applied over the primary motor cortex was also found to potentiate the benefits of MIP on upper-limb motor tasks. Yet, combining both techniques has not been tested for tasks requiring fine postural control. To determine the impact of MIP and the additional effects of tDCS, 14 participants performed a postural control task before and after two experimental (MIP + anodal or sham tDCS over the primary motor cortex) and one control (control task + sham tDCS) conditions, in a double blind randomized study. Data revealed a significant decrease of the time required to perform the postural task. Greater performance gains were recorded when MIP was paired with anodal tDCS and when the task involved the most complex postural adjustments. Altogether, findings highlight short-term effects of MIP on postural control and suggest that combining MIP with tDCS might also be effective in rehabilitation programs for regaining postural skills in easily fatigable persons and neurologic populations.

DOI10.1038/s41598-017-00509-w
Alternate JournalSci Rep
PubMed ID28352100