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Effects of resistance and Tai Ji training on mobility and symptoms in knee osteoarthritis patients
Wortley M, Zhang S, Paquette M, Byrd E, Baumgartner L, Klipple G, Krusenklaus J, Brown L
Journal of Sport and Health Science 2013 Dec;2(4):209-214
clinical trial
4/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: No; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

BACKGROUND: No studies have compared effectiveness of resistance training and Tai Ji exercise on relieving symptoms of knee osteoarthritis (OA). The purpose of the study was to evaluate effects of a 10-week Tai Ji and resistance training intervention on improving OA symptoms and mobility in seniors with knee OA. METHODS: Thirty-one seniors (60 to 85 years) were randomly assigned to a Tai Ji program (n = 12), a resistance training program (n = 13), and a control group (n = 6). All participants completed the Western Ontario and MacMaster (WOMAC) Osteoarthritis Index and performed three physical performance tests (6-min walk, timed-up-and-go, and timed stair climb and descent) before and after the 10-week intervention. RESULTS: The participants in the resistance training group significantly improved on the timed-up-and-go test (p = 0.001), the WOMAC pain sub-score (p = 0.006), WOMAC stiffness sub-score (p < 0.001), and WOMAC physical function sub-score (p = 0.011). The Tai Ji group significantly improved on the timed-up-and-go test (p < 0.001), but not on the WOMAC scores. CONCLUSION: Resistance training was effective for improving mobility and improving the symptoms of knee OA. Tai Ji was also effective for improving mobility, but did not improve knee OA symptoms.

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