Therapeutic Ultrasound is a treatment modality that utilizes high or low frequency sound waves. These sound waves are transmitted to the adjacent tissue and vasculature. They penetrate the muscles to cause deep tissue/muscle warming. This stimulates relaxation of the tissue and therefore is useful in treating muscle tightness and spasms. The warming effect of the sound waves also cause vessel vasodilatation and increase circulation to the area that assists in healing. The frequency on the machine to use waves that will decrease inflammation.