Prescripción ortésica mediante simulación para marcha agazapada: estudio de caso


  • Ximena Rosas-Rosas Universidad Nacional de Colombia, Bogotá, Colombia
  • Carlos J. Cortés-Rodríguez Departamento de Ingeniería Mecánica y Mecatrónica, Universidad Nacional de Colombia, Bogotá, Colombia


The use of biomechanical improves medical prescription and patient wellbeing by reducing the possibility of iatrogenesis and posture compensation. The aim of this study is to implement a computational simulation from a generic musculoskeletal model in order to study the kinematic and kinetic effects of two orthotic devices on a patient suffering from crouch gait. METHODS: A 10 years-old boy pathological gait pattern was captured. From these data, we used Opensim® to adapt a generic musculoskeletal model of two types of orthoses: fixed ankle-foot orthosis (FAFO) and floor reaction ankle-foot orthosis (FRAFO) RESULTS: AFO and FRO were able to correct crouch gait, however FRO showed better results not only for kinematic parameters but also for the location of the floor reaction force. It was observed that the left lower limb worked better with the FRO simulation whereas the right limb achieved a good result with the FRO simulation. DISCUSSION: Taken together, these data demonstrate that a generic musculoskeletal model could be used to simulate the effects of ankle-foot orthoses in crouch gait. Asymmetric orthotics prescription is an important observation and could be a significant contribution to the clinical practice. Although our results are not generalizable to a population of patients, the findings in this study could provide a methodological aproach for further research in this area.






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