Ultrasound therapy massage stimulates the tissue beneath the skin’s surface using high-frequency sound waves, between 800,000 Hz and 2,000,000 Hz, these cannot be heard by humans.
There are three potential effects of this kind of massage. The first is the increase in blood flow in the treated area. The second is the decrease in pain from the reduction of swelling and edema. The third is the gentle massage of muscle tendons and/ or ligaments in the treated area because no strain is added and any scar tissue is softened.