I had an active life style I can no longer have and I would love to at least continue training dogs and competing with them which I could do with something like this as well as this would assist me with keep my core muscles fit. This is very important with my disease to keep my upper body healthy and try to remain active and fit as long as I can to remain active to live as long as possible. I have been gaining weight because using a manual chair I am loosing the fight trying to use it for exercise as I have just damaged my left shoulder beyond repair to full recovery. I do not want to end up in a power chair that does not encourage/need any physical activity at all from the user. This is my greatest fear. It will be a long time until I can save enough, but I would like to know how to purchase in the USA.