Estudio cinemático de la biomecánica de la pierna con aplicación de fotogrametría.

Abstract

This research work proposes a methodology to analyze the kinematics of the leg, applying a robust technique with a photogrammetry system and mathematical tools based on the method of rolling torque or instantaneous axis of rotation, which was found to be reliable with the use of the video analysis technique through a cell phone camera and in contrast to other research works proposed by the Biomechanics Institute of Valencia. This methodology begins with the determination of the type of flexo-extension movement of the lower limb in a sagittal plane, later with the photogrammetry system the trajectories of technical markers located in the lower limb are recorded, as well as with video analysis where the trajectories with the free software Tracker, and finally the EIR method is applied to the trajectories obtained from the photogrammetry system and the representative graphs of the movement are determined, in addition to the algorithm carried out in the MATLAB programming language. The proposed movement will focus on the knee and will resemble the flexion and extension movement that is performed when pedaling a bicycle. The results will be validated using the multiple correlation coefficient method between the kinematic variables obtained in photogrammetry and video analysis, to conclude this research work it will serve as a proposal for future research in the field of biomechanics, specifically in obtaining forces and torques. that occur in the knee when performing flex extension movements.