Therapeutic Ultrasound differs from diagnostic Ultrasound. Diagnostic obtains information without intentionally producing a biological effect, whereas therapeutic ultrasound does. The frequency for the diagnostic unit is from 1 megahertz ( 1 million cycles per second ) to 10MHZ. The therapeutic Ultrasound units range from 0.8MHZ to 3MHZ. 1MHZ is ideal for sound absorption in body tissues.
Ultrasound is used in physiotherapy for the treatment of a variety of conditions e.g soft tissue injury and inflammation, circulatory disorders and stimulation of tissue repair. It penetrates deeply enough to reach damaged tissues. it warms up tissues without warming the skin and can cause a temperature rise of 5 degrees or over to a depth of 5 centimetres.
Ultrasound waves are pressure waves of mechanical energy moving in a straight line from the source. There is very little divergence, giving more power to penetrate tissues. A soundwave is one cycle of compression and rarefraction. Particle density is the greatest during compression phase and less dense during refraction phase. Compression waves move along in a row as the waves move deeper into tissue, like a 'slinky toy'. They differ from electromagnetic waves which are up and down and can be transmitted through space. Ultrasound waves are longitudinal waves that consist of to and fro movement of particles and require some medium to travel through - gel.
Ultrasound is used in physiotherapy for the treatment of a variety of conditions e.g soft tissue injury and inflammation, circulatory disorders and stimulation of tissue repair. It penetrates deeply enough to reach damaged tissues. it warms up tissues without warming the skin and can cause a temperature rise of 5 degrees or over to a depth of 5 centimetres.
Ultrasound waves are pressure waves of mechanical energy moving in a straight line from the source. There is very little divergence, giving more power to penetrate tissues. A soundwave is one cycle of compression and rarefraction. Particle density is the greatest during compression phase and less dense during refraction phase. Compression waves move along in a row as the waves move deeper into tissue, like a 'slinky toy'. They differ from electromagnetic waves which are up and down and can be transmitted through space. Ultrasound waves are longitudinal waves that consist of to and fro movement of particles and require some medium to travel through - gel.