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Tai Chi is effective in treating knee osteoarthritis: A randomized controlled trial
Arthritis Care and Research , 11/03/09

Schouffoer AA et al. –In this trial our goal was to evaluate the effectiveness of Tai Chi in the treatment of knee OA symptoms. Tai Chi reduces pain and improves physical function, self-efficacy, depression, and health-related quality of life for knee OA.

Methods

Prospective, single-blind, randomized controlled trial of 40 individuals with symptomatic tibiofemoral OA
Patients randomly assigned to 60 minutes of Tai Chi (10 modified forms from classic Yang style) or attention control (wellness education and stretching) twice weekly for 12 weeks
Primary outcome was Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain score at 12 weeks
Secondary outcomes included WOMAC function, patient and physician global assessments, timed chair stand, depression index, self-efficacy scale, and QOL
Repeated these assessments at 24 and 48 weeks
Analyses compared by intent-to-treat principles

Results

40 patients had mean age of 65 years and mean BMI of 30.0 kg/m2
Compared with controls, patients assigned to Tai Chi exhibited significantly greater improvement in WOMAC pain (mean difference at 12 weeks -118.80 mm ; WOMAC physical function , patient global visual analog scale ), physician global , chair stand time , Center for Epidemiologic Studies Depression Scale , self-efficacy score , and Short Form 36 physical component summary
No severe adverse events observed

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