Surrogate lower limb design for ankle-foot orthosis mechanical evaluation.

ABSTRACT:

Purpose

This study designs and provides a pilot evaluation of a novel surrogate lower limb (SLL) that provides anatomically realistic three-dimensional (3D) foot motion, based on a literature consensus of passive lower limb motion. This SLL is intended to replace single axis surrogates currently used in mechanical testing of ankle-foot orthoses (AFO).

Material and methods

The SLL design is inspired by the Rizzoli foot model, with shank, hindfoot, midfoot, forefoot, and toe sections. Ball and socket joints were used between hindfoot-midfoot (HM)-forefoot sections. Forefoot-toes used a hinge joint. Three-dimensional printed nylon, thermoplastic polyurethane (TPU) and polylactic acid (PLA), as well as casted silicone rubber were used to re-create foot components. After fabricat

SUBMITTER: Thibodeau A 

PROVIDER: S-EPMC9693806 | biostudies-literature | 2022 Jan-Dec

REPOSITORIES: biostudies-literature