Experimental and Theoretical Investigations of Dorsiflexion Angle and Life of an Ankle - Foot - Orthosis Made From (Perlon / Carbon fiber / Acrylic) and Polypropylene Materials

Abstract

The dorsiflexion angle tests were performed on orthoses made from perlon / carbon fiber / acrylic and polypropylene using "Dartfish program". The obtained dorsiflexion angles were 8.2° for orthosis made from PCA, and 7.7° for that made from PP . The fatigue test was achieved on prosthetic foot worn sole and measured life of sole was found to be 2.137 x 10⁶ cycles. The theoretical AFO lives were equal to 1.0 x 10⁷ and 2.3 x 10⁶ cycles for calf and sole parts respectively, while theoretical dorsiflexion angle of sole was equal to 8.266°.