Posted 22 September 2013
A well designed study has found that wearing a magnetic wrist strap or copper bracelet had no practical value for patients with rheumatoid arthritis. The study involved 70 patients who were randomly assigned in various sequences to wear a standard (1502 to 2365 gauss) magnetic wrist strap and three control devices: a demagnetised (<20 gauss) wrist strap, an attenuated (250 to 350 gauss) magnetic wrist strap, and a copper bracelet. No differences among the groups were found for pain, inflammation, disease activity, disability, or medication requirement patterns.
From: Consumer Health Digest #13-35, September 19, 2013
Richmond SJ, Gunadasa S, Bland M, MacPherson H. Copper bracelets and magnetic wrist straps for rheumatoid arthritis: Analgesic and anti-inflammatory effects: A randomized double-blind placebo controlled crossover trial. PLOS ONE 8(9), 2013.
Department of Health Sciences, University of York, Heslington, York, United Kingdom, 2 Health Services Research Unit, University of Aberdeen, Aberdeen, United Kingdom