A pathophysiological study of low back pain or lumbago was carried out by assessing thermography together with patients's subjective and objective symptoms. Active and dummy magnets were randomly assigned to patients (29 male and 34 females) in a double blind study. All patients wore 35-49 magnets for three weeks and after that the magnets were removed. Temperatures were monitored weekly for 4 weeks to investigate the response to magneto-therapy.
Significant pain relief was observed 1 weeks after application of the active magnets.