Abstract
Purpose: The present study investigated the effects of combining tRNS with exercise to measure the effects of this combination on brain waves and the improvement of temporal and spatial components in perceptual-motor task learning.
Methods: This semi-experimental research was based on the pretest-acquisition-posttest design. 30 male students (mean age 22.62 ± 62) who were randomly divided into three experimental groups (1-tRNS combined with motor training, 2-sham tRNS combined with motor training, 3- motor training) were divided. The participants performed the movement task of drawing a circle in three phases: pretest (10 trials), intervention (one day after the pretest; 6 sessions including 5 blocks of 10 attempts), post-test (one day after the intervention, 10 trials). In each trial, when 20 laps of the circle were drawn, a trial ended automatically.
Results: Statistical results using SPSS software showed that tRNS improved the power of beta rhythm and sensorimotor rhythm (SMR) (p≤0.05). Also, tRNS had a significant effect on reducing spatial error and movement execution time (p≤0.05). tRNS had an effect on movement time after six sessions, while it had such an effect on spatial error after three sessions.
Conclusions: According to the obtained results, tRNS can be introduced as an effective solution to reduce movement errors and improve movement timing and subsequently improve fine motor performance. Also, according to the results, three training sessions with tRNS are enough to reduce the spatial error, but more sessions are needed to reduce the temporal error.
Main Subjects