A continuous loading apparatus for measuring three-dimensional stiffness of ankle-foot orthoses.
J Biomech Eng
; 127(6): 1025-9, 2005 Nov.
Article
em En
| MEDLINE
| ID: mdl-16438244
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 < or = 1% FSO).
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Aparelhos Ortopédicos
/
Suporte de Carga
/
Análise de Falha de Equipamento
/
Pé
/
Tornozelo
Tipo de estudo:
Evaluation_studies
Idioma:
En
Revista:
J Biomech Eng
Ano de publicação:
2005
Tipo de documento:
Article
País de afiliação:
Itália