Shortwave Diathermy

Continuous and Pulsed SWD Therapy

Shortwave diathermy (SWD) is a widely used clinical modality, which has been used in therapeutic treatments since 1928. The focused electromagnetic energy that is produced by shortwave diathermy machines works at the molecular level to move rapidly move ions in the treatment area. In areas of tissue containing blood vessels or muscle this produces heat.

The physiological response to tissue heating from shortwave diathermy is similar to other methods of heating, dilation of blood vessels and increased blood flow, which has been shown to alleviate pain symptoms, as well as muscle spasms. Shortwave diathermy has also been shown to decrease stiffness in joints, increase range of motion, and reduce swelling.

Referenced from Continuous short-wave (radio-frequency) diathermy by Geoffrey C. Goats. PhD, MCSP.



Pulsed shortwave diathermy (PSWD) produces an increase in tissue temperature, which in turn results in desirable therapeutic effects..."

Temperature Change in Human Muscle During and After Pulsed Short-Wave Diathermy 
David O. Draper, EdD, ATC; Kenneth Knight, PhD, ATC; T. Fujiwara, MD, PhD, PT; Chris Castel

Shortwave (SW) diathermy can be used to improve vascular circulation and reduce inflammation and pain for patients with osteoarthritis..."

Diathermy for Reducing Synovitis inPatients With Knee Osteoarthritis: An Ultrasonographic Study
Mei-Hwa Jan, Huei-Ming Chai, Chung-Li Wang, Yeong-Fwu Lin, Li-Ying Tsai


Nonthermal [Pulsed Shortwave Diathermy] has been advocated for the treatment of pain associated with acute and subacute injuries..."

A Diathermy Comeback? A resurgence of this modality could be beneficial to many patients.
Joseph A. Gallo, DSc, ATC, PT, and Christopher M. Proulx, DC, MS, ATC, CSCS

TheraTouch DX2 Shortwave Diathermy

TheraTouch DX2

The TheraTouch DX2 is an innovative addition to the diathermy offerings of today. Capable of tighter titrations – the DX2 boasts 2 additional dosimetry parameters compared to competing devices, allowing for treatment options that better suit a variety of patient demographics. To learn more about our innovations in diathermy – view the DX2 product page.