Limb Health and Socket Pressure in Response to Powered Ankle Protheses

Active prostheses like the PROPRIO FOOT® offer great potential to more completely restore the locomotor capabilities of individuals with transtibial amputation, perhaps enhancing RTD for military personnel. The investigators will examine factors of socket loading and direct measures of residual limb health so as to inform the optimization of prosthesis fit. The testing will consist of walking on a treadmill and the use of a 3D motion capture camera to track movement and angles of the participant's upper and lower extremities. Ascending and descending on stairs and ramps with the device will be completed. Participants will also have laser speckle imaging to measure blood flow to skin and transepidermal water loss measurement to check skin health.

Active prostheses -such as the Empower ankle offer great potential to more completely restore the locomotor capabilities of individuals with transtibial amputation, perhaps enhancing RTD for military personnel. The investigators will examine factors of socket loading and direct measures of residual limb health so as to inform the optimization of prosthesis fit. The testing will consist of walking on a treadmill and the use of a 3D motion capture camera to track movement and angles of the participant's upper and lower extremities. Ascending and descending on stairs and ramps with the device will be completed. Participants will also have laser speckle imaging to measure blood flow to skin and trans epidermal water loss measurement to check skin health.