Dorsiflexion and Plantarflexion Test and Analysis for a new Carbon Fiber Ankle-Foot Prosthesis

Abstract

Dorsiflexion and plantarflexion are an important dynamic functionby which the ankle-foot prosthesismust simulate the human foot. Dorsiflexion and plantarflexion are essential functions to the walking pattern. However, mostankle-feet prostheseshavea notice lack in mimicking the normal gait dorsiflexionand plantarflexion functions. A new carbon fiber ankle-foot prosthesishas been designed and manufactured. Dorsiflexion and plantarflexion tests achieved using a 25 KN tensile test device. The tests have been simulated and analyzed using ANSYS l6 and the results compared with the experimental results. Both test approaches pointed that the new prosthesis satisfy the ISO 10328 requirements that can be classified as multiaxial as it flexed 10oand 8oin dorsiflexion and plantarflexion respectively, under testing loading less than 1230 N