Award Date
May 2024
Degree Type
Thesis
Degree Name
Master of Science (MS)
Department
Kinesiology and Nutrition Sciences
First Committee Member
Brach Poston
Second Committee Member
James Navalta
Third Committee Member
Sharon Jalene
Fourth Committee Member
Mark Guadagnoli
Number of Pages
45
Abstract
Transcranial direct current stimulation (tDCS) applied unilaterally to the cerebellum (ctDCS) can improve several aspects of human motor performance. The purpose of the study was to examine the influence of dual source tDCS delivered bilaterally over the cerebellar cortices (dsc-tDCS) on the time to task failure (TTF) of a fatiguing contraction. The study utilized a double-blind, randomized, SHAM-controlled, within-subjects, crossover design and participants were given either dsc-tDCS or SHAM stimulation in two different experiments held 7 days apart. Every aspect of the two experiments was the same except the type of stimulation (dsc-tDCS or SHAM) delivered during the fatiguing contraction. The fatiguing contraction was executed with a precision grip at 15% of the maximum voluntary contraction (MVC) force and participants were instructed to maintain the contraction for as long of time as possible (TTF). The TTF and fatigue index were both similar for the dsc-tDCS and SHAM stimulation conditions. In addition, the electromyographic (EMG) activity, force error, and standard deviation (SD) of force measured during the fatiguing contraction were also not statistically different between the dsctDCS and SHAM stimulation conditions. The findings suggest that dsc-tDCS does not decrease the rate of progression of muscle fatigue.
Keywords
Fatigue; Kinesiology; tDCS; Transcranial Direct Current Stimulation
Disciplines
Kinesiology
Degree Grantor
University of Nevada, Las Vegas
Language
English
Repository Citation
Bognot, Janriek Asuncion, "The Influence of Dual Sources Cerebellar Transcranial Direct Current Stimulation on Muscle Fatigue" (2024). UNLV Theses, Dissertations, Professional Papers, and Capstones. 4956.
https://digitalscholarship.unlv.edu/thesesdissertations/4956
Rights
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