Ultrasound Therapy is used for its non-thermal effect, in which high-frequency sound waves cause biological fluids to vibrate and move. Ultrasound is effective in three folds. First, it increases blood flow in the treated area. Secondly, it decreases pain from the reduction of swelling and edema. Thirdly, the gentle massage of muscle tendons and/ or ligaments in the treated area adds no strain and scar tissue is softened.
The sound waves generate heat in the deep tissues, increasing blood flow and promoting relaxation.
Mechanical effects such as cavitation (formation of tiny gas bubbles) and microstreaming (fluid movement around cells) enhance cellular activity and tissue healing.