Ambulation With the Motorized Prosthesis in the "Transparent" Condition

The goal of this clinical trial is to learn if a motorized prosthesis can improve mobility in individuals with amputation. The main question it aims to answer is: * Does motorized prosthesis improve ambulation speed, balance, control, or efficiency when performing everyday activities? * What problems arise when using a motorized prosthesis? Researchers will compare mobility of the participants when using and not using the motorized prosthesis to see if mobility and/or function improves. Participants will perform various activities with and without the motorized prosthesis including: * Walking at a mild incline/decline (0°-15°) on treadmill or over-ground * Ascending or descending stairs * Stand to sit and sit to stand transitions * All terrain walking over ground * Turning * Any combination of the above-mentioned activities