These are sound waves in greater frequencies i.e. 1 to 3 Mhz.
Ultrasonic therapy has 2 effects
Thermal (heat) effect
This is by mechanical vibration. It makes more oxygen available to tissues by increasing blood circulation.
Greater circulation also means better removal of waste products and reduction in swelling.
This is due to waveform of ultrasound, which causes compression/rarefaction in tissues causing
pumping effect and better resolution of swelling. It also helps in reducing stiffness.
Inflammation of Elbow Joint (Tennis elbow) ,Plantar fascitis(Heel pain),Shortening of Muscle or Ligament
,Inflammation of tendons(For eg Supraspinatus tendnitis), Ligament sprain(For eg Lateral Ligament sprain of ankle), Unhealed scars.