It is an effective at-home rehab exercise bike for those suffering from neurological and mobility conditions, and you can train your body while sitting yourself in a wheelchair. Unlike traditional stationary bikes that must be powered entirely by the user, this physical therapy bike can help you exercise everyday regardless of your strength and endurance. The active passive trainer has four training modes (Passive Training, Constant Speed Training, Assisted Training, and Active Training) and spasticity control function. As a low-impact exercise, this stationary bike provides lots of benefits for patients suffering from prolonged immobilization. It helps prevent muscle atrophy, osteoporosis, and joint spasm, improve blood circulation and cardiopulmonary function, increase joint range of motion, and enhance muscle strength and endurance.