Article

Stair ascent is a particularly challenging task for
transfemoral amputees. The aim of this clinical note was to describe the
kinematic features of foot clearance in transfemoral amputee who can ascend
stairs using a step-over-step strategy. TECHNIQUE: The marker trajectories of the
first metatarsophalangeal joint (Mt1) and clearance height were measured in two
transfemoral amputees who could (TF1) and could not (TF2) climb stairs using a
step-over-step strategy. DISCUSSION: The Mt1 marker trajectories of the TF1 moved
backward in the early swing phase, and the trajectory followed an off-centered
parabolic arc to achieve a similar clearance height as able-bodied subjects. TF2
could not climb the stairs without tripping in each step. An effective
compensatory strategy to avoid tripping during stair climbing may be to use the
hip joint for a backward extension and rapid flexion of the prosthetic leg during
the early swing phase. CLINICAL RELEVANCE: The foot clearance strategy in
transfemoral amputees who can climb stairs using a step-over-step strategy will
help us better understand adaptive prosthetic control and thus develop more
effective gait rehabilitation programs.
CI - (c) The International Society for Prosthetics and Orthotics 2013.

Langue : ANGLAIS