Sport Sciences Research Institute Motor Behavior 2538-273X 15 53 2023 09 23 The effect of virtual reality with and without transcranial direct current stimulation on the balance performance of sedentary adolescent girls The effect of virtual reality with and without transcranial direct current stimulation on the balance performance of sedentary adolescent girls 113 132 3931 10.22089/mbj.2023.14517.2088 FA Nasrin Shahbazi Motor Behavior, Faculty of Sports Sciences, Razi University Kermanshah, Iran Ali Heyrani Motor Behavior, Sport Science College, Razi University, Kermanshah. Iran 0000-0001-6011-2264 Ehsan Amiri Department of Exercise Physiology Faculty of Sport Sciences Razi University Kermanshah Iran Daniel Gomez Da Silva Machado Research Group in Neuroscience of Human Movement (NeuroMove), Department of Physical Education, Federal University of Rio Grande do Norte, Natal, RN, Brazil 0000-0002-8426-0488 Journal Article 2023 04 19 Today, although virtual reality is suggested as a suitable and exciting alternative to other training methods, but all aspects of its effectiveness in combination with other interventions have not yet been well clarified. Therefore, our aim was to determine the effect of virtual reality with and without transcranial direct current stimulation on balance performance. The participants in the research were 36 sedentary adolescent girls who were purposefully selected and voluntarily participated in this study. The subjects were randomly divided into three control groups (12 people), VR+a-tDCS (12 people) and VR+sh-tDCS (12 people). First, each group received brain stimulation (anodal or sham) for 20 minutes with an intensity of 2 MA, then they performed virtual reality exercises for one hour. The control group did not receive any intervention. Each group conducted 12 sessions (3 sessions per week) with one day in between. Y and STROK tests were used to evaluate balance. The statistical test of the analysis Two-way Mixed ANOVA was used at the significance level of 0.05 and SPSS23 software. Static balance in the anodal group were higher than the sham group (p=0.004) and control group (p=0.001). Also, the dynamic balance in the anodal group was higher than the sham group (p=0.013) and the control group (p<0.001). The findings showed that anodal stimulation can increase the effectiveness of virtual exercises more and more lastingly. And this difference was maintained in the retention stage so that performance of the VR+a-tDCS group was superior to the other two groups. Today, although virtual reality is suggested as a suitable and exciting alternative to other training methods, but all aspects of its effectiveness in combination with other interventions have not yet been well clarified. Therefore, our aim was to determine the effect of virtual reality with and without transcranial direct current stimulation on balance performance. The participants in the research were 36 sedentary adolescent girls who were purposefully selected and voluntarily participated in this study. The subjects were randomly divided into three control groups (12 people), VR+a-tDCS (12 people) and VR+sh-tDCS (12 people). First, each group received brain stimulation (anodal or sham) for 20 minutes with an intensity of 2 MA, then they performed virtual reality exercises for one hour. The control group did not receive any intervention. Each group conducted 12 sessions (3 sessions per week) with one day in between. Y and STROK tests were used to evaluate balance. The statistical test of the analysis Two-way Mixed ANOVA was used at the significance level of 0.05 and SPSS23 software. Static balance in the anodal group were higher than the sham group (p=0.004) and control group (p=0.001). Also, the dynamic balance in the anodal group was higher than the sham group (p=0.013) and the control group (p<0.001). The findings showed that anodal stimulation can increase the effectiveness of virtual exercises more and more lastingly. And this difference was maintained in the retention stage so that performance of the VR+a-tDCS group was superior to the other two groups. https://mbj.ssrc.ac.ir/article_3931_acff1af62d0f91f4be73f4857552d70c.pdf