Use of a Non-medicated Plaster in Chronic Lumbar Back Pain.

"The FIT Therapy patch (D. FENSTEC s.r.l. Altavilla Vicentina, Italy) is a medical device class 1 which mechanism of action is through the ability of biominerals to reflect the far infrared radiation (FIR). Normally the human body temperature would dissipate regular far infrared radiations but, thanks to the FIT Therapy (Far Infrared Technology), these waves are reflected and allowed to reach deeper areas in the human body (wavelength spectrum is 4-21 µm with a denser concentration around 11 µm).~Every FIT device act as a mirror and they are able to induce an antalgic effect simply thanks to this biophysical process, therefore without releasing any active ingredient or creating a thermic shock.~The plasters are made of 100% polypropylene non-woven fabric, an acrylic adhesive mass and a mix of titanium dioxide printed on. This particular mix in powder form is characterized by particles sizes above 100 nm."