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Comments and corrections on 3D modeling studies of locomotor muscle moment arms in archosaurs
In a number of recent studies we used computer modeling to investigate the evolution of muscle leverage (moment arms) and function in extant and extinct archosaur lineages (crocodilians, dinosaurs including birds and pterosaurs). These studies sought to quantify the level of disparity and convergenc...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
PeerJ Inc.
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4614809/ https://www.ncbi.nlm.nih.gov/pubmed/26500810 http://dx.doi.org/10.7717/peerj.1272 |
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author | Bates, Karl Maidment, Susannah C.R. Schachner, Emma R. Barrett, Paul M. |
author_facet | Bates, Karl Maidment, Susannah C.R. Schachner, Emma R. Barrett, Paul M. |
author_sort | Bates, Karl |
collection | PubMed |
description | In a number of recent studies we used computer modeling to investigate the evolution of muscle leverage (moment arms) and function in extant and extinct archosaur lineages (crocodilians, dinosaurs including birds and pterosaurs). These studies sought to quantify the level of disparity and convergence in muscle moment arms during the evolution of bipedal and quadrupedal posture in various independent archosaur lineages, and in doing so further our understanding of changes in anatomy, locomotion and ecology during the group’s >250 million year evolutionary history. Subsequent work by others has led us to re-evaluate our models, which revealed a methodological error that impacted on the results obtained from the abduction–adduction and long-axis rotation moment arms in our published studies. In this paper we present corrected abduction–adduction and long axis rotation moment arms for all our models, and evaluate the impact of this new data on the conclusions of our previous studies. We find that, in general, our newly corrected data differed only slightly from that previously published, with very few qualitative changes in muscle moments (e.g., muscles originally identified as abductors remained abductors). As a result the majority of our previous conclusions regarding the functional evolution of key muscles in these archosaur groups are upheld. |
format | Online Article Text |
id | pubmed-4614809 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | PeerJ Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-46148092015-10-23 Comments and corrections on 3D modeling studies of locomotor muscle moment arms in archosaurs Bates, Karl Maidment, Susannah C.R. Schachner, Emma R. Barrett, Paul M. PeerJ Bioengineering In a number of recent studies we used computer modeling to investigate the evolution of muscle leverage (moment arms) and function in extant and extinct archosaur lineages (crocodilians, dinosaurs including birds and pterosaurs). These studies sought to quantify the level of disparity and convergence in muscle moment arms during the evolution of bipedal and quadrupedal posture in various independent archosaur lineages, and in doing so further our understanding of changes in anatomy, locomotion and ecology during the group’s >250 million year evolutionary history. Subsequent work by others has led us to re-evaluate our models, which revealed a methodological error that impacted on the results obtained from the abduction–adduction and long-axis rotation moment arms in our published studies. In this paper we present corrected abduction–adduction and long axis rotation moment arms for all our models, and evaluate the impact of this new data on the conclusions of our previous studies. We find that, in general, our newly corrected data differed only slightly from that previously published, with very few qualitative changes in muscle moments (e.g., muscles originally identified as abductors remained abductors). As a result the majority of our previous conclusions regarding the functional evolution of key muscles in these archosaur groups are upheld. PeerJ Inc. 2015-10-08 /pmc/articles/PMC4614809/ /pubmed/26500810 http://dx.doi.org/10.7717/peerj.1272 Text en © 2015 Bates et al. http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited. |
spellingShingle | Bioengineering Bates, Karl Maidment, Susannah C.R. Schachner, Emma R. Barrett, Paul M. Comments and corrections on 3D modeling studies of locomotor muscle moment arms in archosaurs |
title | Comments and corrections on 3D modeling studies of locomotor muscle moment arms in archosaurs |
title_full | Comments and corrections on 3D modeling studies of locomotor muscle moment arms in archosaurs |
title_fullStr | Comments and corrections on 3D modeling studies of locomotor muscle moment arms in archosaurs |
title_full_unstemmed | Comments and corrections on 3D modeling studies of locomotor muscle moment arms in archosaurs |
title_short | Comments and corrections on 3D modeling studies of locomotor muscle moment arms in archosaurs |
title_sort | comments and corrections on 3d modeling studies of locomotor muscle moment arms in archosaurs |
topic | Bioengineering |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4614809/ https://www.ncbi.nlm.nih.gov/pubmed/26500810 http://dx.doi.org/10.7717/peerj.1272 |
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