Interferential Therapy

Interferential therapy is a medium frequency modality that is used when treating condition deep within a body part from the inside out. Interferential increases deep blood and lymph flow, reduces edema, triggers endorphin production, triggers enkephalin formation, and decreases muscle spasm. Interferential therapy is good at blocking deep seeded pain. The pain control setting for acute conditions is between 80-150 Hz for 15 minutes at patient perception. This will trigger enkephalin formation. The high/low setting, 90-100 Hz and 1-10 Hz for 15 min., at patient comfort, is for subacute conditions. This setting will trigger both endorphin and enkephalin production. The 1-10 Hz setting is for the end of the subacute phase when the desired results are endorphin production, increased circulation and reduction of muscle spasm. This is done at patient comfort. The 10-100 Hz setting, for 15 min., surged, is for chronic conditions when the desired effect is for increased muscle tone and circulation. This setting also has a pronounced effect on the vegetative portions of the nervous system.