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To establish a three-dimensional finite element model of foot-orthotic-ground, and to use this model to analyze the equivalent stress changes of orthotic when the human body is standing with two feet and wearing orthotic devices of different materials, so as to reflect the influence of materials on the comfort of orthotic devices. Methods: Based on the three-dimensional point cloud data of the left foot of volunteers, the foot was reconstructed geometrically and meshes were divided, and a complete finite element model was established to complete the construction of foot-orthodontist-ground finite element model. Different orthopedic materials were selected for static simulation of human standing state. Results: The finite element analysis results showed that, compared with the other two materials, the pressure peak value of EVA orthotics was reduced, the comfort of EVA orthotics was better than that of the other two materials, which has certain reference significance for the comfort evaluation and functional design of flat foot orthotics.
Li et al. (Fri,) studied this question.