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The Influence of Transcranial Alternating Current Stimulation on Fatigue Resistance

Previous research has shown that some forms of non-invasive brain stimulation can increase fatigue resistance. The purpose of this study is to determine the influence of transcranial alternating current stimulation (tACS) on the time to task failure (TTF) of a precision grip task. The study utilized...

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Autores principales: De Guzman, Kayla A., Young, Richard J., Contini, Valentino, Clinton, Eliza, Hitchcock, Ashley, Riley, Zachary A., Poston, Brach
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10452200/
https://www.ncbi.nlm.nih.gov/pubmed/37626581
http://dx.doi.org/10.3390/brainsci13081225
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author De Guzman, Kayla A.
Young, Richard J.
Contini, Valentino
Clinton, Eliza
Hitchcock, Ashley
Riley, Zachary A.
Poston, Brach
author_facet De Guzman, Kayla A.
Young, Richard J.
Contini, Valentino
Clinton, Eliza
Hitchcock, Ashley
Riley, Zachary A.
Poston, Brach
author_sort De Guzman, Kayla A.
collection PubMed
description Previous research has shown that some forms of non-invasive brain stimulation can increase fatigue resistance. The purpose of this study is to determine the influence of transcranial alternating current stimulation (tACS) on the time to task failure (TTF) of a precision grip task. The study utilized a randomized, double-blind, SHAM-controlled, within-subjects design. Twenty-six young adults completed two experimental sessions (tACS and SHAM) with a 7-day washout period between sessions. Each session involved a fatiguing isometric contraction of the right hand with a precision grip with either a tACS or SHAM stimulation applied to the primary motor cortex (M1) simultaneously. For the fatiguing contraction, the participants matched an isometric target force of 20% of the maximum voluntary contraction (MVC) force until task failure. Pre- and post-MVCs were performed to quantify the force decline due to fatigue. Accordingly, the dependent variables were the TTF and MVC force decline as well as the average EMG activity, force error, and standard deviation (SD) of force during the fatiguing contractions. The results indicate that there were no significant differences in any of the dependent variables between the tACS and SHAM conditions (p value range: 0.256–0.820). These findings suggest that tACS does not increase the TTF during fatiguing contractions in young adults.
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spelling pubmed-104522002023-08-26 The Influence of Transcranial Alternating Current Stimulation on Fatigue Resistance De Guzman, Kayla A. Young, Richard J. Contini, Valentino Clinton, Eliza Hitchcock, Ashley Riley, Zachary A. Poston, Brach Brain Sci Article Previous research has shown that some forms of non-invasive brain stimulation can increase fatigue resistance. The purpose of this study is to determine the influence of transcranial alternating current stimulation (tACS) on the time to task failure (TTF) of a precision grip task. The study utilized a randomized, double-blind, SHAM-controlled, within-subjects design. Twenty-six young adults completed two experimental sessions (tACS and SHAM) with a 7-day washout period between sessions. Each session involved a fatiguing isometric contraction of the right hand with a precision grip with either a tACS or SHAM stimulation applied to the primary motor cortex (M1) simultaneously. For the fatiguing contraction, the participants matched an isometric target force of 20% of the maximum voluntary contraction (MVC) force until task failure. Pre- and post-MVCs were performed to quantify the force decline due to fatigue. Accordingly, the dependent variables were the TTF and MVC force decline as well as the average EMG activity, force error, and standard deviation (SD) of force during the fatiguing contractions. The results indicate that there were no significant differences in any of the dependent variables between the tACS and SHAM conditions (p value range: 0.256–0.820). These findings suggest that tACS does not increase the TTF during fatiguing contractions in young adults. MDPI 2023-08-21 /pmc/articles/PMC10452200/ /pubmed/37626581 http://dx.doi.org/10.3390/brainsci13081225 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
De Guzman, Kayla A.
Young, Richard J.
Contini, Valentino
Clinton, Eliza
Hitchcock, Ashley
Riley, Zachary A.
Poston, Brach
The Influence of Transcranial Alternating Current Stimulation on Fatigue Resistance
title The Influence of Transcranial Alternating Current Stimulation on Fatigue Resistance
title_full The Influence of Transcranial Alternating Current Stimulation on Fatigue Resistance
title_fullStr The Influence of Transcranial Alternating Current Stimulation on Fatigue Resistance
title_full_unstemmed The Influence of Transcranial Alternating Current Stimulation on Fatigue Resistance
title_short The Influence of Transcranial Alternating Current Stimulation on Fatigue Resistance
title_sort influence of transcranial alternating current stimulation on fatigue resistance
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10452200/
https://www.ncbi.nlm.nih.gov/pubmed/37626581
http://dx.doi.org/10.3390/brainsci13081225
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