I have seen many types of rehabiliation equipment that cost little to a lot of moneyall of which have limited parameters for range of motion. My 16 years of study inspinal neurology and biomechanics with 12 years in clinical practice has taughtme that exercise heals patients.So I thought: What if there was a machine thatcould exercise (motion) people in conjunction with other treatments without thedrawbacks of trying to figure out what exercises to do? This is what the NahgraSystem does.