As a therapeutic modality, ultrasound is a form of heat treatment for soft tissue injuries to minimize swelling and pain, reduce muscle spasms, and increase the range of motion. Making high frequency sound waves, ultrasound penetrates deep into a damaged area, creating heat that draws blood into the area in order to improve the mending process.
Ultrasound is administered gently with a handheld soundhead, using strokes or circles over the affected area. An ultrasound gel may be administered during the ultrasound therapy session. The role of an ultrasound is to speed up your healing process and alleviate your pain.
In one study, the addition of ultrasound to exercise treatment for lumbar spinal stenosis relief reduced the amount of analgesic usage by the patients. (1)