A Continuous Loading Apparatus for Measuring Three-dimensional Stiffness of Ankle-Foot Orthoses-Reference-Cited by-同舟云学术

A Continuous Loading Apparatus for Measuring Three-dimensional Stiffness of Ankle-Foot Orthoses

Published:2005-07-11 Issue:6 Volume:127 Page:1025-1029
ISSN:0148-0731
Container-title:Journal of Biomechanical Engineering
language:en
Short-container-title:

Author:

Cappa Paolo¹,Patanè Fabrizio¹,Di Rosa Giuseppe²

Affiliation:

1. Department of Mechanics and Aeronautics, University of Rome “La Sapienza,” Via Eudossiana 18, Rome, Italy and Paediatric Neuro-rehabilitation Division, Children’s Hospital “Bambino Gesù,” Via Torre di Palidoro, Passoscuro Rome, Italy

2. Paediatric Neuro-rehabilitation Division, Children’s Hospital “Bambino Gesù,” Via Torre di Palidoro, Passoscuro, Rome, Italy

Abstract

This paper describes a novel device to evaluate the mechanical properties of ankle foot orthoses (AFOs). The apparatus permits the application to AFOs of continuous three-dimensional (3D) movements between specified and settable endpoints. Using an x-y robot with a rotary stage and a six-component load cell, characteristic displacement versus reaction force curves can be generated and consequently the ankle moments can be determined as a function of dorsi/plantar flexion, inv/eversion and int/external rotation. Representative curves for two polypropylene lateral leaf AFOs, different in shape but produced for the same leg by a skilled orthotist, are presented to illustrate the capabilities of the novel testing system. The metrological investigation showed that the apparatus creates a highly repeatable data set (uncertainty ⩽1% FSO).

Publisher

ASME International

Subject

Physiology (medical),Biomedical Engineering

Link

http://asmedigitalcollection.asme.org/biomechanical/article-pdf/127/6/1025/5675860/1025_1.pdf

Reference22 articles.

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5. Gait Abnormalities in Hemiplegia: Their Correction by Ankle-Foot Orthoses;Lehmann;Arch. Phys. Med. Rehabil.

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