Modelado de una prótesis transfemoral electrónica en la marcha humana
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The index of people with disabilities in Colombia exceeds 6% of the population, and the highest concentration is found in families with low resources and / or vulnerability, for this reason, access by these people to transfemoral prostheses is Almost nil. For this reason, the degree project defined as a research modality, a transfemoral prosthesis was designed with real parameters, obtaining the model in such a way that it was possible to simulate and analyze the gait behavior in patients with transfemoral amputation. The alternative solution for the development of this proposal consisted in the design of a transfemoral prosthesis using SolidWorks software, in order to export the design parameters to Matlab, once these SolidWorks parameters had been acquired, using the visual programming tool ( SIMULINK), we proceeded to adapt the parameters in a prosthesis model that in turn will interact with the inverted pendulum equations, once the aforementioned modeling was defined, we proceeded to stimulate the system by means of a random impulse, which replaces a signal electromyography captured through invasive or surface electrodes since there is no real electromyographic signal. Once the behavior of the gait movement has been determined, the kinematic analysis of the system will be carried out. With the development of this research, it was possible to analyze the kinematic behavior of a transfemoral prosthesis throughout the phases of human march, where it is possible to observe the variation of the movement of the prosthetic leg with respect to the kinematics of gait in a person healthy, however, the angles obtained for each of the joints have a behavior similar to said kinematics and its future, the model could be scaled for a patient with these conditions. Throughout the document the pertinent results of this investigation will be evidenced and shown.