This double-blind, placebo-controlled study examined the effects of a magnetic treatment device taped over the carpal tunnel against wrist pain sustained at work among a group of turkey plant employees. Results showed that the device was effective in alleviating such pain and that it was free of side effects.

M.J. McLean, Treatment of Wrist Pain in the Work Place with a Static Magnetic Device – Interim Report of a Clinical Trial, Second World Congress for Electricity and Magnetism in Biology and Medicine, June 8-13, Bologna, Italy.