Heat is known to increase circulation, which oxygenates and relaxes muscles, tendons and connecting tissue, and can consequently relieve back pain. Many heating pads and back-warming devices exist on the market and work on this principle, but BACK-TEK claim that their new Y wave technology and far infrared rays can penetrate tissue ten times deeper than heating pads due to their long wavelength, providing greater pain relief. BACK-TEK uses a medically designed support system, available in two sizes with adjustable velcro straps and is worn around the waist. Powered by a 7.4 volt rechargeable battery, the device aims to deliver heat to the injury and not the skin, and can even be worn during moderate activity such as biking or golf to ease muscle spasms and stiffness.
Source: springwise.comAdded: 12 September 2011