Motorized Passive Assist Ergometers Increase Range of Motion, Circulation and Blood Flow to Muscles. Passive Assistance Ergometers incorporate important movements Critical to Everyday Life such as: Arm and Leg Extension and Flexion; Critical in Developing sufficient Strength for Performing Daily Activities. A Passive Assist Ergometer is for persons either too Weak to Cycle Independently or need some Assistance in Exercising. Passive Assist Ergometers are Ideal for Stroke Survivors and those with Progressive Neuromuscular Conditions such as: Spinal Cord Injury, MS, MD or ALS. As Muscular Degeneration occurs, the Cycle Ergometer's Motor Automatically Compensates for increasing Weakness.