Active above knee prosthesis : a guide to a smart prosthetic leg Active Above Knee Prosthesis: A Guide to a Smart Prosthetic Leg presents original research and development results providing a firsthand overview of idea generation and prototype production. The book gives insights into the problem of stair ascent for people with above knee amputation and offers a solution in the form of a physical prototype of an active above knee prosthesis with an actuated ankle. The books authors have developed and tested a physical prototype of an active above knee prosthesis giving anyone who is researching and designing prosthetic devices firsthand knowledge on how to build on and continue with work that has already been done