I gave this to my 80 year old mother because she has pain and weakness in her left leg, that is relieved by exercise. She is unable to walk enough to really get the exercise that she needs, so this fits the bill. She has used this for about a week and says she can feel a difference already. The machine is very handy for her , it is light weight enough that she can pick it up with no trouble and the supplied pad keeps it from moving around when in use. She is very happy with it so far.