The therapeutic effect of the application of pulsed magnetic field therapy (PMFT) has at last received world-wide recognition, although for a long time many practitioners saw it only as an aid to fracture union. Research has now shown that it has the potential to improve a wide range of conditions, although few understood just how it achieved its effectiveness. Extensive research has since been carried out to determine the mechanism by which this occurs. For the clinician presented with a wide range of clinical problems, PMFT is an invaluable aid to the clinic.
The application of PMFT to damaged cells accelerates the re-establishment of normal potentials (Sansaverino 1980 1) increasing the rate of healing and reducing swelling. This can help to disperse bruising also. A magnetic field pulsed at 5Hz with a base frequency of 50Hz can have the same effect as an ice pack in that it causes vasoconstriction.