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Ontogenetic scaling of fore limb and hind limb joint posture and limb bone cross-sectional geometry in vervets and baboons
American journal of physical anthropology, 2016-09, Vol.161 (1), p.72-83
Burgess, M. Loring
Schmitt, Daniel
Zeininger, Angel
McFarlin, Shannon C.
Zihlman, Adrienne L.
Polk, John D.
Ruff, Christopher B.
2016
Volltextzugriff (PDF)
Details
Autor(en) / Beteiligte
Burgess, M. Loring
Schmitt, Daniel
Zeininger, Angel
McFarlin, Shannon C.
Zihlman, Adrienne L.
Polk, John D.
Ruff, Christopher B.
Titel
Ontogenetic scaling of fore limb and hind limb joint posture and limb bone cross-sectional geometry in vervets and baboons
Ist Teil von
American journal of physical anthropology, 2016-09, Vol.161 (1), p.72-83
Ort / Verlag
United States: Blackwell Publishing Ltd
Erscheinungsjahr
2016
Quelle
Wiley-Blackwell Journals
Beschreibungen/Notizen
ABSTRACT Objectives Previous studies suggest that the postures habitually adopted by an animal influence the mechanical loading of its long bones. Relatively extended limb postures in larger animals should preferentially reduce anteroposterior (A‐P) relative to mediolateral (M‐L) bending of the limb bones and therefore decrease A‐P/M‐L rigidity. We test this hypothesis by examining growth‐related changes in limb bone structure in two primate taxa that differ in ontogenetic patterns of joint posture. Materials and Methods Knee and elbow angles of adult and immature vervets (Chlorocebus aethiops, n = 16) were compared to published data for baboons (Papio hamadryas ursinus, n = 33, Patel et al., ). Ontogenetic changes in ratios of A‐P/M‐L bending rigidity in the femur and humerus were compared in skeletal samples (C. aethiops, n = 28; P. cynocephalus, n = 39). Size changes were assessed with linear regression, and age group differences tested with ANOVA. Results Only the knee of baboons shows significant postural change, becoming more extended with age and mass. A‐P/M‐L bending rigidity of the femur decreases during ontogeny in immature and adult female baboons only. Trends in the humerus are less marked. Adult male baboons have higher A‐P/M‐L bending rigidity of the femur than females. Conclusions The hypothesized relationship between more extended joints and reduced A‐P/M‐L bending rigidity is supported by our results for immature and adult female baboon hind limbs, and the lack of significant age changes in either parameter in forelimbs and vervets. Adult males of both species depart from general ontogenetic trends, possibly due to socially mediated behavioral differences between sexes. Am J Phys Anthropol 161:72–83, 2016. © 2016 Wiley Periodicals, Inc.
Sprache
Englisch
Identifikatoren
ISSN: 0002-9483
eISSN: 1096-8644
DOI: 10.1002/ajpa.23009
Titel-ID: cdi_proquest_miscellaneous_1812438041
Format
–
Schlagworte
Anatomy, Cross-Sectional
,
Animals
,
Anthropology, Physical
,
Cercopithecus aethiops - anatomy & histology
,
Female
,
Forelimb - anatomy & histology
,
Hindlimb - anatomy & histology
,
joint posture
,
Joints - anatomy & histology
,
limb bone structure
,
Male
,
ontogeny
,
Papio - anatomy & histology
,
Posture - physiology
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