The effect of a Biofeedback Training Course and Transcranial Direct Current Stimulation (tDCS) on Balance, Proprioception, and Performance of Athletes 18 to 30 Years Old

Introduction: Balance is one of the basic required components for daily life activities, which is as one of the functional independent indicators. Proprioception plays a key role in maintaining balance and optimally doing exercise skills and preventing injury. In this research, the effect of biofeedback and TDCS was compared along with the promotion of balance, proprioception, and performance. Method: In the present experimental study, 36 athletes were randomly divided into three groups of biofeedback (12), TDCS (12), and control (12). Balance assessment was performed by force-plate, proprioception was done with digital photography, and the functional balance was determined by star testing before and after the intervention. Anova and T-stent pair tests were used at a significance level of 0.05 to analyze information. Results: The results show a significant difference in the absolute error rate of the reconstruction of the target angle following the biofeedback intervention at angles of 30° (P=0.01), 45° (P=0.03), and 90° P=0.002) as well as improving the balance in the biofeedback group after intervene in the anterior, external, external, posterior, posterior, and TDCS groups in the anterior, posterior, posterior, internal, and internal posterior directions. Conclusion: The findings showed that the use of biofeedback and TDCS along with proprioception exercises could be recommended to athletes to improve their proprioception and functional balance. Keywords: Electromyographic Biofeedback, Transcranial Direct Current Stimulation, proprioception, Balance, Functional Balance