In this study, osteoporosis patients received treatment with pulsed electromagnetic fields (50 G, 50-100 Hz) for 30 minutes per session over a period of two years involving 20 sessions. These subjects were compared to similar patients treated with calcitonin. Results indicated PEMF to be effective in reducing pain, and to be even more so when combined with the conventional
drug treatment.

T.W. Bilotta, The Use of Low-Frequency Low Magnitude PEMFs in Treatment of Osteoporosis, Journal of Bioelectr, 8(2), 1989, p. 316.