Abstract

Introduction: Weakness in core stabilizer muscles can have a negative effect on the balance. Accordingly, this study was designed to compare the effect of core stability exercises in the stable and unstable surface on the balance of female athletes with trunk deficiency. Methods: The statistical population of the study consisted of 30 female athletes from Gilan province who were intentionally entered into the study. They were divided into two groups of 15, and stable and unstable training exercises were implemented for 6 weeks and 3 sessions per week). Static balance was evaluated using BESS test and the dynamic balance was measured using WI balance test. To analyze the difference in balance between athletes of the two groups, statistical analysis of covariance and t-correlation analysis was used. Findings: The results of the study showed a significant effect of both exercise protocols on static and dynamic balance (P = 001.0). In addition, the results of covariance analysis showed that exercises at the unstable surface have more effect on static and dynamic balance in compare to exercises at the stable surface (P <05.0). Discussion: Considering the difference between the two types of exercises in affecting the balance component, the results of the study suggest that both types of core stability exercises of the body are beneficial to improve the balance, by strengthening the muscles associated with controlling the spinal cord and the pelvis. In addition, coaches and athletes can take advantage of unstable surfaces of core stability exercises to improve balance.