Comparing the amount of EMG activity of the selected involved muscles in ankle strategy in female athletes while standing on one leg on shuttle balance and wobble board

It seems that using shuttle balance which has recently been produced in Iran would be beneficial in exercise prescription for preventing sports injuries and recovery. The purpose of this study is comparing the amount of the electromyography activity of involved muscles in ankle strategy while standing on one leg on shuttle balance versus wobble board. this study is a functional and cause-compare study. 15 female students 20-22 years of age having the enterance standards were selected meaningfully. The amount of EMG activity of selected muscles (Tibialis Anterior, Gastrocnemius, Rectus Femoris and Hamstring) was measured while standing on one leg on two devices. The difference in means of muscles activity in both of devices was estimated using multivariate analysis of variance. The results showed a significant difference between the amount of EMG activity of involved muscles (p=0.001). Also, the results of the intragroup effects showed that the electromyography activity of Tibialis Anterior, Rectus Femoris and Hamstring while standing on shuttle balance was significantly more than the activity while standing on wobble board (p<0/05). While the amount of activity on shuttle balance was higher as compared to wobble board, but there was no significant difference in Gastrocnemius EMG activity between two devices (p>0/05). It seems that standing on shuttle balance can make higher electromyography activity in the muscles that are involved on ankle and thigh joints, i.e. Tibialis Anterior, Rectus Femoris and Hamstring. So it is recommended that shuttle balance can be used in balance training program.