Análisis de Video del Comportamiento Cinemático de la Rodilla, Usando el Método de Eje Finito Helicoidal.

Abstract

This research proposes a methodology to analyze the kinematic behavior of the knee, apply the video analysis and the helical finite execution method, which is reliable and easy to apply. The experimental protocol begins with the definition of the type of movement to be analyzed, to apply it to a sample of people, the experimental data collected is optimized with the Levenberg Marquardt (LM) algorithm, and finally with the Finite Helical axis method, the Representative graphics of the movement that are of clinical interest, obtaining a simplification of the movement that allows the articulation to six degrees of freedom: Flexo-extension, Abduction-Adduction, rotation of the tibia and the relative displacements between the Femur and the Tibia (Sx,Sy,Sz). The captured movement of the knee was performed on the static bicycle and the results were discussed and validated, with respect to the data obtained from the computerized system VICON (VS) of a study conducted by Cockcroft, (2011) that presents an error of 14.44 a study comparing a 4-bar mechanism with joint movements of the knee, which presents an error of 4.55, with the last error being minor. To conclude this research, it is subject to discussion, validation, testing, and service as a proposal of a method of easy application for future research in the discipline of Biomechanics.