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