A pathohysiological study of frozen shoulders was carried out by assessing thermography and deep body thermometry results together with the patients' subjective and objective symptoms. Active and dummy magnets were randomly assigned to patients (18 males and 20 females) in a double-blind study. All patients were magnets for three weeks, and subjective and objective symptoms were observed to be improved significantly 1 week after the application of the active magnets. The skin and deep body temperatures in the painful portion significantly increased with exposure to the active magnets at 2 weeks and 3 weeks after the application.
These findings suggest that the static magnetic fields might gradually increase blood circulation.
