{"id":{"repo_id":"ohiolink","oai_identifier":"oai:etd.ohiolink.edu:case1365158588"},"canonical_url":"https://search.dev.ndltd.org/etd/ohiolink/oai:etd.ohiolink.edu:case1365158588","repository":{"repo_id":"ohiolink","name":"OhioLINK","base_url":"https://etd.ohiolink.edu/acprod/odb_etd/ws/oai/oai"},"display":{"title":"Comparative Digital Examination of the Talocrural (ankle) Joint Provides Insight into Human bipedal locomotion","abstract":"Locomotion strategies across human evolution are a prominent topic of discussion. The talocrural joint, a major weight-bearing ankle joint, is a feature of this discussion since all animals, including humans and our ancestors, have different functional requirements depending on locomotor modality. These requirements, featuring flexion and extension of the foot, are reflected in morphology of the bones that comprise the talocrural joint (tibia, fibula, and talus). Using a high resolution 3-dimensional laser scanner (FARO Arm EDGE), digital models of these bones from a sample of humans (N=19), fossil hominins (4.4 million year old Ardipithecus ramidus, 3.2 Ma Australopithecus afarensis, 1.8 Ma Homo habilis), non-human primates (N=29), ursids (n=3), and felids (n=2) were created and shapes of the talocrural joint surfaces were analyzed to identify locomotor patterns. Locomotor modality was identifiable through orientation of the joint surfaces and various morphological traits. Body size was also considered as another factor in morphology.","abstract_html":"Locomotion strategies across human evolution are a prominent topic of discussion. The talocrural joint, a major weight-bearing ankle joint, is a feature of this discussion since all animals, including humans and our ancestors, have different functional requirements depending on locomotor modality. These requirements, featuring flexion and extension of the foot, are reflected in morphology of the bones that comprise the talocrural joint (tibia, fibula, and talus). Using a high resolution 3-dimensional laser scanner (FARO Arm EDGE), digital models of these bones from a sample of humans (N=19), fossil hominins (4.4 million year old Ardipithecus ramidus, 3.2 Ma Australopithecus afarensis, 1.8 Ma Homo habilis), non-human primates (N=29), ursids (n=3), and felids (n=2) were created and shapes of the talocrural joint surfaces were analyzed to identify locomotor patterns. Locomotor modality was identifiable through orientation of the joint surfaces and various morphological traits. Body size was also considered as another factor in morphology.","abstract_has_math":false,"creators":["Zimmerman, Allison M."],"institution":"Case Western Reserve University School of Graduate Studies","degree_name":"Master of Sciences","degree_level":"masters","degree_discipline":"Biology","degree_department":null,"school":null,"contributors":["Simpson, Scott","Burns, Jean"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2013,"date_issued":"2013-08-16","date_published":"2013-08-16","updated_at":"2026-07-24T03:37:16Z","subjects":["Biology","Physical Anthropology","bipedal","locomotion","talocrural","three dimensional","3D","ankle","hominin","Ardipithecus ramidus","Australopithecus afarensis","Australopithecus africanus"],"languages":["English"],"rights":["unrestricted","This thesis or dissertation is protected by copyright: all rights reserved. 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Using a high resolution 3-dimensional laser scanner (FARO Arm EDGE), digital models of these bones from a sample of humans (N=19), fossil hominins (4.4 million year old Ardipithecus ramidus, 3.2 Ma Australopithecus afarensis, 1.8 Ma Homo habilis), non-human primates (N=29), ursids (n=3), and felids (n=2) were created and shapes of the talocrural joint surfaces were analyzed to identify locomotor patterns. Locomotor modality was identifiable through orientation of the joint surfaces and various morphological traits. Body size was also considered as another factor in morphology."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf","p.63","13.54 MB"]},{"key":"dc:title","label":"Title","values":["Comparative Digital Examination of the Talocrural (ankle) Joint Provides Insight into Human bipedal locomotion"]}]}],"canonical_facts":{"dc:contributor":["Simpson, Scott","Burns, Jean"],"dc:creator":["Zimmerman, Allison M."],"dc:date":["2013-08-16"],"dc:description":["Locomotion strategies across human evolution are a prominent topic of discussion. The talocrural joint, a major weight-bearing ankle joint, is a feature of this discussion since all animals, including humans and our ancestors, have different functional requirements depending on locomotor modality. These requirements, featuring flexion and extension of the foot, are reflected in morphology of the bones that comprise the talocrural joint (tibia, fibula, and talus). Using a high resolution 3-dimensional laser scanner (FARO Arm EDGE), digital models of these bones from a sample of humans (N=19), fossil hominins (4.4 million year old Ardipithecus ramidus, 3.2 Ma Australopithecus afarensis, 1.8 Ma Homo habilis), non-human primates (N=29), ursids (n=3), and felids (n=2) were created and shapes of the talocrural joint surfaces were analyzed to identify locomotor patterns. Locomotor modality was identifiable through orientation of the joint surfaces and various morphological traits. Body size was also considered as another factor in morphology."],"dc:format":["application/pdf","p.63","13.54 MB"],"dc:identifier":["http://rave.ohiolink.edu/etdc/view?acc_num=case1365158588"],"dc:language":["English"],"dc:publisher":["Case Western Reserve University School of Graduate Studies / OhioLINK"],"dc:rights":["unrestricted","This thesis or dissertation is protected by copyright: all rights reserved. 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