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The purpose of this study is to identify the effects of aqua walking exercise on the joint range of motion (ROM), muscular strength, and pain in patients who have limited knee ROM from surgery or joint fixation. Ten subjects were participated in this study and divided into two groups: continuous passive motion (CPM) therapy+walking exercise on dryland (CWD) and CPM+aqua walking exercise (CAW) groups. The repeated measures analysis of variance was used to verify the difference between the groups and the duration of the program. A paired t-test was used to verify the significance of the observed difference within the groups, and an independent t-test was used to verify the significance of the observed difference between different groups. In this study, ROM in the knee flexion showed interaction effect between the two groups. CAW had a significant increase of knee flexion angle compared to those in CWD. Also, strength on the knee flexors showed interaction effect between the two groups. CAW had a significant increase of knee flexion angle compared to those in CWD, while strength on the knee extensors showed no significant interaction effect between groups. Visual analogue scale (VAS) score showed interaction between the two groups. CAW had a significant increase of the VAS scores compared to those in CWD. Given these findings reported in present study, aqua walking exercise for patients with osteoarthritis is a very safe and effective therapeutic strategies that can move the joint in the optimal ROM.

journal of exercise rehabilitation

Effect of aqua walking exercise on knee joint angles, muscular strength, and visual analogue scale for patients with limited range of motion of the knee