Previous studies suggest that Veterans with below the knee amputation using passive-elastic or powered prostheses have impaired physical function, which could increase the risk of osteoarthritis, leg/back pain, and diabetes/obesity. Utilization of rehabilitation strategies/techniques such as real-time visual feedback training could restore physical function, increase physical activity, and reduce injury risk. The investigators will systematically determine the effects of using real-time visual feedback training of peak propulsive (push-off) force during walking while Veterans with below the knee amputations use a passive-elastic and battery-powered prosthesis. Similar to previous studies of non-amputee older (\>65 years) and post-stroke adults, use of real-time visual feedback training of propulsive force will likely improve walking function in Veterans with amputations. Such training presents a promising rehabilitation strategy that could reduce comorbidities, while improving quality of life, comfort, and physical function, and advancing rehabilitation research and prosthetic development.
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Affected Leg Peak Propulsive Horizontal Ground Reaction Force
Timeframe: 18 trials that are 5 minutes in length
Net Metabolic Power
Timeframe: 18 trials that are 5 minutes in length
Trailing Affected Leg Positive Work
Timeframe: 18 trials that are 5 minutes in length
Leading Unaffected Leg Negative Work
Timeframe: 18 trials that are 5 minutes in length