Efficacy of Therapy Using Monopolar Dielectric Radiofrequency Signals on the Symptoms of Myofascial Trigger Points in Patients With Chronic Nonspecific Low Back Pain.

The Experimental Group formed by 30 subjects will undergo an application of monopolar electrical diathermy by radiofrequency emission (MDR) using the Physicalm® device developed by the electro-medicine company Biotronic Advance Develops SL, on the lumbar muscles by means of rotary movements and translation, adapting to the muscle fibers of the lumbar area. A pulsed emission of 840 KHz and 30v will be made dynamically during a treatment time of 20 minutes. 3 weekly sessions will be performed for 3 weeks, a total of 9 treatment sessions.

"The 30 participants in the control group will receive a placebo treatment, consisting of the same execution protocol as the EG, but with a non-emitting device whose software and hardware will be exactly the same as that used in the EG. The intervention will be simulated for 20 minutes.~3 weekly sessions will be held for 3 weeks, a total of 9 treatment sessions."