Finite element analysis of the proximal phalanx of the thumb in Hominoidea during simulated stone tool use

Finite element analysis was applied to analyze six individuals from different primate species (Homo sapiens Linnaeus, 1758, Homo neanderthalensis King, 1864, Pan troglodytes Blumenbach, 1779, Gorilla gorilla Savage, 1847, Pongo pygmaeus Linnaeus, 1760 et Hylobates lar Linnaeus, 1771) to identify str...

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Main Authors: Bucchi, A, Puschel Rouliez, T, Lorenzo, C, Marcé-Nogué, J
Format: Journal article
Language:English
Published: Publications scientifiques du Muséum 2020
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author Bucchi, A
Puschel Rouliez, T
Lorenzo, C
Marcé-Nogué, J
author_facet Bucchi, A
Puschel Rouliez, T
Lorenzo, C
Marcé-Nogué, J
author_sort Bucchi, A
collection OXFORD
description Finite element analysis was applied to analyze six individuals from different primate species (Homo sapiens Linnaeus, 1758, Homo neanderthalensis King, 1864, Pan troglodytes Blumenbach, 1779, Gorilla gorilla Savage, 1847, Pongo pygmaeus Linnaeus, 1760 et Hylobates lar Linnaeus, 1771) to identify stress distribution patterns on the pollical proximal phalanx during simulated hammerstone use. We expected the stress to be better distributed in our species than in other hominids based on the idea that, unlike apes, the human hand is adapted to tool-related behaviors. Our results indicate that the human phalanx unevenly distributes stresses and is one of the most fragile of all, especially when a small hammerstone is simulated. Tool orientation relative to the phalanx did not have a substantial effect on average stress or distribution. We conclude that great apes can resist loads exerted during this activity more efficiently than humans and that there were probably other evolutionary factors acting on this bone in our species.
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spelling oxford-uuid:02a86ee7-cbaf-4e89-b1c6-6f86e1bf7b212022-03-26T08:42:00ZFinite element analysis of the proximal phalanx of the thumb in Hominoidea during simulated stone tool useJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:02a86ee7-cbaf-4e89-b1c6-6f86e1bf7b21EnglishSymplectic Elements at OxfordPublications scientifiques du Muséum2020Bucchi, APuschel Rouliez, TLorenzo, CMarcé-Nogué, JFinite element analysis was applied to analyze six individuals from different primate species (Homo sapiens Linnaeus, 1758, Homo neanderthalensis King, 1864, Pan troglodytes Blumenbach, 1779, Gorilla gorilla Savage, 1847, Pongo pygmaeus Linnaeus, 1760 et Hylobates lar Linnaeus, 1771) to identify stress distribution patterns on the pollical proximal phalanx during simulated hammerstone use. We expected the stress to be better distributed in our species than in other hominids based on the idea that, unlike apes, the human hand is adapted to tool-related behaviors. Our results indicate that the human phalanx unevenly distributes stresses and is one of the most fragile of all, especially when a small hammerstone is simulated. Tool orientation relative to the phalanx did not have a substantial effect on average stress or distribution. We conclude that great apes can resist loads exerted during this activity more efficiently than humans and that there were probably other evolutionary factors acting on this bone in our species.
spellingShingle Bucchi, A
Puschel Rouliez, T
Lorenzo, C
Marcé-Nogué, J
Finite element analysis of the proximal phalanx of the thumb in Hominoidea during simulated stone tool use
title Finite element analysis of the proximal phalanx of the thumb in Hominoidea during simulated stone tool use
title_full Finite element analysis of the proximal phalanx of the thumb in Hominoidea during simulated stone tool use
title_fullStr Finite element analysis of the proximal phalanx of the thumb in Hominoidea during simulated stone tool use
title_full_unstemmed Finite element analysis of the proximal phalanx of the thumb in Hominoidea during simulated stone tool use
title_short Finite element analysis of the proximal phalanx of the thumb in Hominoidea during simulated stone tool use
title_sort finite element analysis of the proximal phalanx of the thumb in hominoidea during simulated stone tool use
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