Simulacion de la marcha del amputado transtibial a partir de los ajustes de posición de la prótesis

Abstract

In recent years, research work has focused on developing new tools and models for the analysis of human walking. The main motivation for this growing interest is to observe differences between one kind of gait and another; usually, this other gait is pathological. As this field research is too recent, the main objective of this research is to develop a tool to establish and understand the differences between the transtibial amputee gait and the normal gait. The strategy employed by this work was to model human walking through multibody systems. Using simulation software MapleSim, different multibody models were constructed for a model of normal gait. Once the model gait was obtained, another multibody model depicted the framework of a transtibial prosthesis with a single axis foot prosthetic. Which was introduced in normal model to observe the dynamic behavior of the new system running. The simulations found kinematic differences between the amputee gait and the normal gait. Most of these differences are related to the lateral and vertical displacement of the center of gravity, suggesting changes in the energy efficiency gait. The other differences were found deviations from the pattern of motion when the prosthesis is undergo to alignment changes.