WOBBLE BOARD EXERCISE DAN ISOMETRIC EXERCISE LEBIH BAIK DARI PADA WOBBLE BOARD EXERCISE DAN CALF RAISE EXERCISE TERHADAP PENINGKATAN STABILITAS FUNGSIONAL ANKLE PADA CHRONIC ANKLE SPRAIN

Background: Chronic ankle sprain is overstretched in complex lateral ankle ligaments in inversion and plantar flexion. Chronic ankle sprain causes ankle instability, which is accompanied by a reaction to a decrease in ankle muscle strength due to changes in muscle activation. This study was conducted to compare the effectiveness of wobble board exercise and isometric exercise with wobble board exercise and calf raise exercise to improve functional stability of the ankle in patients with chronic ankle sprain. Method: This study used a quasi experimental design with a pre-test and post-test two group design. In this study 9 respondents were given wobble board exercise and isometric exercise for 6 weeks with exercise frequency 2 times a week, and 9 respondents were given wobble board exercise and calf raise exercise for 6 weeks exercise frequency 2 times a week. The measuring instrument used is the balance error scoring system (BESS). Results: The results of the parametric statistical analysis using paired sample t-test, showed that the two treatment groups could significantly increase ankle stability. The mean value of BESS before treatment in group I with a mean of 30.00 ± 2.784 and after treatment with a mean of 11.67 ± 0.866 with a value of p = 0.001 (p <0.05), and before treatment in Group II 31.67 ± 3.162 and After treatment with a value of 16.67 ± 2.828 with a value of p = 0.001 (p <0.05). The mean BESS test post group I and group II post with the Independent sample t-test between the two groups can significantly improve ankle stability with a Group I value of 11.67 ± 0.866, and group II 16.67 ± 2.828 and p = 0.001 (p < 0.005). The mean difference in the value of BESS in group I was 18.33 ± 2.398 and in group II was 15.00 ± 1.323 at 3.33 with a value of p = 0.001 (p <0.005) indicating a difference in increasing ankle functional stability. The conclusion of the study is that wobble board exercise and isometrick exercise are more effective in increasing functional ankle stability in patients with chronic ankle sprain than wobble board exercise and calf raise exercise.