Yoga-based intervention for carpal tunnel syndrome: a randomized trial. Garfinkel MS, Singhal A, Katz WA, Allan DA, Reshetar R, Schumacher HR Jr.

JAMA 1998 Nov 11;280(18):1601-3

Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, USA.
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CONTEXT: Carpal tunnel syndrome is a common complication of repetitive activities and causes significant morbidity. OBJECTIVE: To determine the effectiveness of a yoga-based regimen for relieving symptoms of carpal tunnel syndrome. DESIGN: Randomized, single-blind, controlled trial. SETTING: A geriatric center and an industrial site in 1994-1995. PATIENTS: Forty-two employed or retired individuals with carpal tunnel syndrome (median age, 52 years; range, 24-77 years). INTERVENTION: Subjects assigned to the yoga group received a yoga-based intervention consisting of 11 yoga postures designed for strengthening, stretching, and balancing each joint in the upper body along with relaxation given twice weekly for 8 weeks. Patients in the control group were offered a wrist splint to supplement their current treatment. MAIN OUTCOME MEASURES: Changes from baseline to 8 weeks in grip strength, pain intensity, sleep disturbance, Phalen sign, and Tinel sign, and in median nerve motor and sensory conduction time. RESULTS: Subjects in the yoga groups had significant improvement in grip strength (increased from 162 to 187 mm Hg; P = .009) and pain reduction (decreased from 5.0 to 2.9 mm; P = .02), but changes in grip strength and pain were not significant for control subjects. The yoga group had significantly more improvement in Phalen sign (12 improved vs 2 in control group; P = .008), but no significant differences were found in sleep disturbance, Tinel sign, and median nerve motor and sensory conduction time. CONCLUSION: In this preliminary study, a yoga-based regimen was more effective than wrist splinting or no treatment in relieving some symptoms and signs of carpal tunnel syndrome.

Categories: Joints