How does a three-dimensional continuum muscle model affect the kinematics and muscle strains of a finite element neck model compared to a discrete muscle model in rear-end, frontal, and lateral impacts

Spine
S Hedenstierna, P Halldin

Abstract

A finite element (FE) model of the human neck with incorporated continuum or discrete muscles was used to simulate experimental impacts in rear, frontal, and lateral directions. The aim of this study was to determine how a continuum muscle model influences the impact behavior of a FE human neck model compared with a discrete muscle model. Most FE neck models used for impact analysis today include a spring element musculature and are limited to discrete geometries and nodal output results. A solid-element muscle model was thought to improve the behavior of the model by adding properties such as tissue inertia and compressive stiffness and by improving the geometry. It would also predict the strain distribution within the continuum elements. A passive continuum muscle model with nonlinear viscoelastic materials was incorporated into the KTH neck model together with active spring muscles and used in impact simulations. The resulting head and vertebral kinematics was compared with the results from a discrete muscle model as well as volunteer corridors. The muscle strain prediction was compared between the 2 muscle models. The head and vertebral kinematics were within the volunteer corridors for both models when activated. The conti...Continue Reading

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Citations

Jul 26, 2011·Annals of Biomedical Engineering·F S GayzikJ D Stitzel
Feb 5, 2011·Computer Methods in Biomechanics and Biomedical Engineering·Jonas ÖsthRiender Happee
Jan 21, 2011·Clinical Biomechanics·Jordi BorstDirkjan H E J Veeger
Dec 26, 2015·International Journal of Computer Assisted Radiology and Surgery·Jihun KimJames M Balter
Aug 25, 2015·Frontiers in Bioengineering and Biotechnology·Themis Toumanidou, Jérôme Noailly
Sep 23, 2014·Journal of Biomechanics·Derek D NevinsAnita N Vasavada
Sep 17, 2014·Experimental Brain Research·Riender HappeeBart van Vliet
Jun 6, 2017·Computer Methods in Biomechanics and Biomedical Engineering·Mang CaiHui Li
Jan 11, 2019·Applied Bionics and Biomechanics·Tien Tuan Dao, Marie-Christine Ho Ba Tho
Apr 2, 2021·Teaching and Learning in Medicine·Hans MöllerMadeleine Abrandt Dahlgren

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