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dc.contributor.authorRyan, Timothy Men
dc.contributor.authorCarlson, Kristian Jen
dc.contributor.authorGordon, Adam Den
dc.contributor.authorJablonski, Ninaen
dc.contributor.authorShaw, Colin Nen
dc.contributor.authorStock, Jayen
dc.date.accessioned2018-06-27T13:10:44Z
dc.date.available2018-06-27T13:10:44Z
dc.date.issued2018-08en
dc.identifier.issn0047-2484
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/277557
dc.description.abstractAdaptations indicative of habitual bipedalism are present in the earliest recognized hominins. However, debate persists about various aspects of bipedal locomotor behavior in fossil hominins, including the nature of gait kinematics, locomotor variability across different species, and the degree to which various australopith species engaged in arboreal behaviors. In this study, we analyze variation in trabecular bone structure of the femoral head using a sample of modern humans, extant non-human hominoids, baboons, and fossil hominins attributed to Australopithecus africanus, Paranthropus robustus, and the genus Homo. We use μCT data to characterize the fabric anisotropy, material orientation, and bone volume fraction of trabecular bone to reconstruct hip joint loading conditions in these fossil hominins. Femoral head trabecular bone fabric structure in australopiths is more similar to that of modern humans and Pleistocene Homo than extant apes, indicating that these australopith individuals walked with human-like hip kinematics, including a more limited range of habitual hip joint postures (e.g., a more extended hip) during bipedalism. Our results also indicate that australopiths have robust femoral head trabecular bone, suggesting overall increased loading of the musculoskeletal system comparable to that imposed by extant apes. These results provide new evidence of human-like bipedal locomotion in Pliocene hominins, even while other aspects of their musculoskeletal systems retain ape-like characteristics.
dc.format.mediumPrint-Electronicen
dc.languageengen
dc.publisherElsevier
dc.subjectFemuren
dc.subjectHip Jointen
dc.subjectAnimalsen
dc.subjectPapioen
dc.subjectHominidaeen
dc.subjectWalkingen
dc.subjectFossilsen
dc.subjectMaleen
dc.subjectBiomechanical Phenomenaen
dc.subjectCancellous Boneen
dc.titleHuman-like hip joint loading in Australopithecus africanus and Paranthropus robustus.en
dc.typeArticle
prism.endingPage24
prism.publicationDate2018en
prism.publicationNameJournal of human evolutionen
prism.startingPage12
prism.volume121en
dc.identifier.doi10.17863/CAM.24872
dcterms.dateAccepted2018-03-23en
rioxxterms.versionofrecord10.1016/j.jhevol.2018.03.008en
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2018-08en
dc.contributor.orcidGordon, Adam D [0000-0002-1807-4644]
dc.contributor.orcidJablonski, Nina [0000-0001-7644-874X]
dc.contributor.orcidStock, Jay [0000-0003-0147-8631]
dc.identifier.eissn1095-8606
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEuropean Research Council (617627)
pubs.funder-project-idBBSRC (BB/R01292X/1)
rioxxterms.freetoread.startdate2019-04-27


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