Inverse finite element characterization of the human thigh soft tissue in the seated position.

In this study, we compared how the choice of material model and modeling area dimension affect prediction accuracy of a model of the thigh. We showed that the first-order Ogden and Fung orthotropic material models could approximate the mechanical behavior of soft tissue significantly better than neo-Hookean and Mooney-Rivlin. We also showed that, significant error results from using a semi-3D model versus a 3D model. We then developed full 3D models for 20 participants employing Ogden and Fung material models and compared the estimated material parameters between different sexes and locations along the thigh. We showed that males tissues are less deformable overall when compared to females and the material parameters are highly dependent on location, with tissues getting softer moving distally for both men and women. PMID: 31420768 [PubMed - as supplied by publisher]
Source: Biomechanics and Modeling in Mechanobiology - Category: Biomedical Science Authors: Tags: Biomech Model Mechanobiol Source Type: research