The Effects of Transcranial Direct Current Stimulation (tDCS) and Biofeedback on Proprioception and Functional Balance in Athletes with ACL-deficiency

Background: Following an anterior cruciate ligament (ACL) rupture, proprioceptive deficiency may be responsible for functional balance defects and joint instability. Recently, using transcranial direct current stimulation (tDCS) or biofeedback has been recommended athletes with ACL rupture. Objectives: This study aimed to evaluate the effects of tDCS modalities while performing contraction exercises in athlete Methods: Thirty-three rupture were randomly divided into three groups tDCS, biofeedback, control, 11 people each group. All underwent a ten-session training intermittent contractions lower extremity muscles standing position at different knee angles, including 30, 45, 90 degrees flexion during four weeks. The control group received no except exercises. subjects evaluated both before end interventions. proprioception measured as rate absolute error reconstruction was assessed by digital photography technique angles degrees. star excursion test eight directions. measurements carried out on injured limb. Results: results showed significant difference among regarding all variables related (P > 0.05). Intra-group comparison (before after intervention) indicated that significantly improved directions < Moreover, six directions, anterior-lateral posterior, also flexion. Conclusions: Although did not show large groups, modalities, along isometric exercises, have reduced well balance. Therefore, it these should included rehabilitation program targeting ACL-deficient subjects.