Aplicación de la cinemática articular a la valoración funcional de la rodilla.

Abstract

The objective of the project was to use joint kinematics for the functional assessment of the knee. In this sense, the photogrammetry technique was used. A set of 13 markers were placed on different areas of interest of the right lower limb, following the ISB recommendations. Subsequently, the tool recorded the leg positions derived from the execution of flexion-extension, likewise, each participant performed three tests in the experimentation. To ensure the standardization of the flexion-extension movement, the use of a stationary bicycle was incorporated. The values obtained from the positions were executed by an algorithm implemented in the Matlab software. To develop the programming, a kinematic model based on finite and infinitesimal displacements was used, in addition to the use of statistical techniques. A sample of healthy subjects (n=18) was studied to establish a baseline of normality and examine the impact of individual characteristics (sex, strain, and segment mass index). The results of the algorithm show continuous curves describing the positions, velocities, and angular accelerations, in addition to the instantaneous axis of rotation EIR. Based on the results, kinematic patterns are influenced by gender, effort, and segment mass index.