ERGYS 2, originally designed for actor Christopher Reeve, uses computerized functional electrical stimulation to allow patients with little or no voluntary leg movement to actively pedal a stationary cycle. This can increase muscle mass, strength, oxygen intake and the heart's pumping volume.

Therapeutic Alliances Inc. (TAI) of Fairborn, Ohio, offers a complete line of electrotherapy and rehabilitation equipment for treating and managing stroke, SCI, TBI, MS, CP, and other neuromuscular disorders and diseases.  Among these products are the ERGYS, REGYS, NeuroEDUCATOR, SpectraSTIM, NeuroSwitch, and Parastep.