Trabecular bone variation in the gorilla calcaneus.
ankle
arboreality
foot
terrestriality
Journal
American journal of biological anthropology
ISSN: 2692-7691
Titre abrégé: Am J Biol Anthropol
Pays: United States
ID NLM: 101770171
Informations de publication
Date de publication:
17 Apr 2024
17 Apr 2024
Historique:
revised:
15
02
2024
received:
24
08
2023
accepted:
02
04
2024
medline:
18
4
2024
pubmed:
18
4
2024
entrez:
17
4
2024
Statut:
aheadofprint
Résumé
Calcaneal external shape differs among nonhuman primates relative to locomotion. Such relationships between whole-bone calcaneal trabecular structure and locomotion, however, have yet to be studied. Here we analyze calcaneal trabecular architecture in Gorilla gorilla gorilla, Gorilla beringei beringei, and G. b. graueri to investigate general trends and fine-grained differences among gorilla taxa relative to locomotion. Calcanei were micro-CT scanned. A three-dimensional geometric morphometric sliding semilandmark analysis was carried out and the final landmark configurations used to position 156 volumes of interest. Trabecular thickness (Tb.Th), trabecular spacing (Tb.Sp), and bone volume fraction (BV/TV) were calculated using the BoneJ plugin for ImageJ and MATLAB. Non-parametric MANOVAs were run to test for significant differences among taxa in parameter raw values and z-scores. Parameter distributions were visualized using color maps and summarized using principal components analysis. There are no significant differences in raw BV/TV or Tb.Th among gorillas, however G. b. beringei significantly differs in z-scores for both parameters (p = <0.0271). All three taxa exhibit relatively lower BV/TV and Tb.Th in the posterior half of the calcaneus. This gradation is exacerbated in G. b. beringei. G. b. graueri significantly differs from other taxa in Tb.Sp z-scores (p < 0.001) indicating a different spacing distribution. Relatively higher Tb.Th and BV/TV in the anterior calcaneus among gorillas likely reflects higher forces associated with body mass (transmitted through the subtalar joint) relative to forces transferred through the posterior calcaneus. The different Tb.Sp pattern in G. b. graueri may reflect proposed differences in foot positioning during locomotion.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e24939Subventions
Organisme : Division of Behavioral and Cognitive Sciences
ID : BCS-1317047
Organisme : Division of Behavioral and Cognitive Sciences
ID : BCS-1824630
Informations de copyright
© 2024 The Authors. American Journal of Biological Anthropology published by Wiley Periodicals LLC.
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