The technology was developed by a team of engineers and doctors about 30 years ago for the Russian space program.

>The SCENAR (Self Controlled Energo Neuro Adaptive Regulator) is a hand held, electro-stimulation therapeutic medical device. SCENAR therapy is unique because it interactively locates, measures and prompts problem areas in the body (asymmetries) through the skin to HELP RELIEVE PAIN AND RESTORE FUNCTION. <
The feedback measures skin resistance in the electrode area and then dynamically adapts the signal to the body response along preset parameters like frequency, duty cycle etc. It is possible to find the most effective area for treatment by measurement shown on a display ( professional models) and or by scanning the skin of the patient with the device and observation to find areas of stickyness or other assymetries. These are the areas to be treated, so the skill of the therapist in finding assymetries can influence tratment results.

This should be really enough info now, as you can easily find out more from the links already supplied or by googling it or perhaps even by booking a session with a Scenar therapist.

Cheers