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