This exercise bike is great for rehab purposes, or for someone who is not seeking vigerous exercise. I have multiple sclerosis and am in a wheelchair with very limited weight bearing ability. This is perfect for me to allow my muscles to have range of motion without them having to do the work. It does stimulate my muscles and is a great way to work them out without using all my energy. The foot straps are the only thing I think could use improvement. They aren't easy to adjust, and my foot kept slipping out. Great product for passive exercise, great for elderly or for people seeking rehab.