Is there a trade-off between economy and task goal variability in transfemoral amputee gait?

ABSTRACT:

Background

Energy cost minimization has been widely accepted to regulate gait. Optimization principles have been frequently used to explain how individuals adapt their gait pattern. However, there have been rare attempts to account for the role of variability in this optimization process. Motor redundancy can enable individuals to perform tasks reliably while achieving energy optimization. However, we do not know how the non-goal-equivalent and goal-equivalent variability is regulated. In this study, we investigated how unilateral transfemoral amputees regulate step and stride variability based on the task to achieve energy economy.

Methods

Nine individuals with unilateral transfemoral amputation walked on a treadmill at speeds of 0.6, 0.8, 1.0, 1.2 and 1.4 m/s using their p

SUBMITTER: Lee IC 

PROVIDER: S-EPMC8932056 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature