This project is a 2-arm, parallel, randomized, controlled clinical trial designed to determine if a microprocessor controlled prosthetic foot MPF, with greater range of motion and active power, will translate into improved functional performance, ambulatory safety risk of falls and quality of life in trans-tibial amputees TTA who function as limited community ambulators. We will assess these outcomes in 54 veterans with TTA by randomizing participants, in a 11 ratio, into an intervention and a comparison group. Participants in the intervention group will receive an MPF, while the comparison group will continue with their currently prescribed prosthetic foot. All participants will be followed with weekly contact over a 6-month period of time in addition to receiving physical therapy training. All outcome measures will be evaluated three times during the 6 month study period. Once HRPO approval for the project was received in April 2016, initial recruitment efforts via Partner Prosthetic clinics was undertaken and identified over 700 potentially eligible individuals, 40 of whom are veterans. Similar efforts with the Regional DAV are also in progress. Active recruitment began in July 2016 that has yielded 9 individuals screened for eligibility and 1 enrolledrandomized. Recruitment, enrollmentrandomization will continue in the coming quarteryear.