Diseño e implementación de un sistema para visualizar la marcha humana biomecánica en la afectación de rodilla ante una gonartrosis

Abstract

The present work undertakes the development and implementation of a system to visualize the human biomechanical gait of the knee in the sagittal zone by means of sensors to visualize the affectation of the gonarthosis in the gait. Two inertial sensors were used to acquire signals corresponding to the angle generated between the leg and the thigh which were processed in a development board - Arduino one. Kalman and the complementary have been applied for the filter of the accelerometer and gyroscope signal. The next stage of digital processing was done at the software level with Matlab, once the signal was obtained wirelessly; Initially it is classified and normalized the human march, in addition, adjustments of curves are realized through a polinomio of seventh order of the marches acquired and selected and obtain the knee kinematics. We analyzed people without affectation, to store in the database and to visualize the affectation of the gait with people suffering from gonarthrosis through a graphical interface that allows the specialist to visualize the affectation in the gait.