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).

A continuous loading apparatus for measuring 3-d stiffness of ankle-foot orthoses / Cappa, Paolo; Patane', Fabrizio; G., DI ROSA. - In: JOURNAL OF BIOMECHANICAL ENGINEERING. - ISSN 0148-0731. - STAMPA. - 127:(2005), pp. 1025-1029. [10.1115/1.2049313]

A continuous loading apparatus for measuring 3-d stiffness of ankle-foot orthoses

CAPPA, Paolo;PATANE', FABRIZIO;
2005

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).
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A continuous loading apparatus for measuring 3-d stiffness of ankle-foot orthoses / Cappa, Paolo; Patane', Fabrizio; G., DI ROSA. - In: JOURNAL OF BIOMECHANICAL ENGINEERING. - ISSN 0148-0731. - STAMPA. - 127:(2005), pp. 1025-1029. [10.1115/1.2049313]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/361486
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