Check out this video – It is a great story showing what goes into some of the prosthetic running legs technology, as well as a behind the scenes look at the “Wheelchair, Orthotic & Prosthetic Repair Centre” at the London Paralympics. Watch out for Kelly Cartwright, Scott Reardon & Cameron Ward http://www.youtube.com/watch?v=nUKxHZOnUNU&feature=share&list=PL30E54AB9E6A4235F