Choosing appropriate prosthetic ankle work to reduce the metabolic cost of individuals with transtibial amputation.

ABSTRACT: Powered ankle prostheses have been designed to reduce the energetic burden that individuals with transtibial amputation experience during ambulation. There is an open question regarding how much power the prosthesis should provide, and whether approximating biological ankle kinetics is optimal to reduce the metabolic cost of users. We tested 10 individuals with transtibial amputation walking on a treadmill wearing the BiOM powered ankle prosthesis programmed with 6 different power settings (0-100%), including a prosthetist-chosen setting, chosen to approximate biological ankle kinetics. We measured subjects' metabolic cost of transport (COT) and the BiOM's net ankle work during each condition. Across participants, power settings greater than 50% resulted in lower COT than 0% or 25%. The re

SUBMITTER: Ingraham KA 

PROVIDER: S-EPMC6193045 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature