Effects of an integrated approach of hatha yoga therapy on functional disability, pain, and flexibility in osteoarthritis of the knee joint: a randomized controlled study

250 patients, with osteoarthritis (OA) of the knee, were randomised into two groups to undergo one of two therapy sessions, as a means to measure functional outcome. After receiving transcutaneous electrical stimulation and ultrasound treatments, patients either completed daily sessions of hatha yoga therapy or therapeutic exercises. Following 3 months of therapy, results displayed that yoga therapy was more effective at increasing knee function than therapeutic exercises.