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Masticatory biomechanics in the rabbit: a multi-body dynamics analysis
Multi-body dynamics is a powerful engineering tool which is becoming increasingly popular for the simulation and analysis of skull biomechanics. This paper presents the first application of multi-body dynamics to analyse the biomechanics of the rabbit skull. A model has been constructed through the...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4233732/ https://www.ncbi.nlm.nih.gov/pubmed/25121650 http://dx.doi.org/10.1098/rsif.2014.0564 |
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author | Watson, Peter J. Gröning, Flora Curtis, Neil Fitton, Laura C. Herrel, Anthony McCormack, Steven W. Fagan, Michael J. |
author_facet | Watson, Peter J. Gröning, Flora Curtis, Neil Fitton, Laura C. Herrel, Anthony McCormack, Steven W. Fagan, Michael J. |
author_sort | Watson, Peter J. |
collection | PubMed |
description | Multi-body dynamics is a powerful engineering tool which is becoming increasingly popular for the simulation and analysis of skull biomechanics. This paper presents the first application of multi-body dynamics to analyse the biomechanics of the rabbit skull. A model has been constructed through the combination of manual dissection and three-dimensional imaging techniques (magnetic resonance imaging and micro-computed tomography). Individual muscles are represented with multiple layers, thus more accurately modelling muscle fibres with complex lines of action. Model validity was sought through comparing experimentally measured maximum incisor bite forces with those predicted by the model. Simulations of molar biting highlighted the ability of the masticatory system to alter recruitment of two muscle groups, in order to generate shearing or crushing movements. Molar shearing is capable of processing a food bolus in all three orthogonal directions, whereas molar crushing and incisor biting are predominately directed vertically. Simulations also show that the masticatory system is adapted to process foods through several cycles with low muscle activations, presumably in order to prevent rapidly fatiguing fast fibres during repeated chewing cycles. Our study demonstrates the usefulness of a validated multi-body dynamics model for investigating feeding biomechanics in the rabbit, and shows the potential for complementing and eventually reducing in vivo experiments. |
format | Online Article Text |
id | pubmed-4233732 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | The Royal Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-42337322014-11-24 Masticatory biomechanics in the rabbit: a multi-body dynamics analysis Watson, Peter J. Gröning, Flora Curtis, Neil Fitton, Laura C. Herrel, Anthony McCormack, Steven W. Fagan, Michael J. J R Soc Interface Research Articles Multi-body dynamics is a powerful engineering tool which is becoming increasingly popular for the simulation and analysis of skull biomechanics. This paper presents the first application of multi-body dynamics to analyse the biomechanics of the rabbit skull. A model has been constructed through the combination of manual dissection and three-dimensional imaging techniques (magnetic resonance imaging and micro-computed tomography). Individual muscles are represented with multiple layers, thus more accurately modelling muscle fibres with complex lines of action. Model validity was sought through comparing experimentally measured maximum incisor bite forces with those predicted by the model. Simulations of molar biting highlighted the ability of the masticatory system to alter recruitment of two muscle groups, in order to generate shearing or crushing movements. Molar shearing is capable of processing a food bolus in all three orthogonal directions, whereas molar crushing and incisor biting are predominately directed vertically. Simulations also show that the masticatory system is adapted to process foods through several cycles with low muscle activations, presumably in order to prevent rapidly fatiguing fast fibres during repeated chewing cycles. Our study demonstrates the usefulness of a validated multi-body dynamics model for investigating feeding biomechanics in the rabbit, and shows the potential for complementing and eventually reducing in vivo experiments. The Royal Society 2014-10-06 /pmc/articles/PMC4233732/ /pubmed/25121650 http://dx.doi.org/10.1098/rsif.2014.0564 Text en http://creativecommons.org/licenses/by/4.0/ © 2014 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. |
spellingShingle | Research Articles Watson, Peter J. Gröning, Flora Curtis, Neil Fitton, Laura C. Herrel, Anthony McCormack, Steven W. Fagan, Michael J. Masticatory biomechanics in the rabbit: a multi-body dynamics analysis |
title | Masticatory biomechanics in the rabbit: a multi-body dynamics analysis |
title_full | Masticatory biomechanics in the rabbit: a multi-body dynamics analysis |
title_fullStr | Masticatory biomechanics in the rabbit: a multi-body dynamics analysis |
title_full_unstemmed | Masticatory biomechanics in the rabbit: a multi-body dynamics analysis |
title_short | Masticatory biomechanics in the rabbit: a multi-body dynamics analysis |
title_sort | masticatory biomechanics in the rabbit: a multi-body dynamics analysis |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4233732/ https://www.ncbi.nlm.nih.gov/pubmed/25121650 http://dx.doi.org/10.1098/rsif.2014.0564 |
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