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A validated method for modeling anthropoid hip abduction in silico
American journal of physical anthropology, 2016-07, Vol.160 (3), p.529-548
Hammond, Ashley S.
Plavcan, J. Michael
Ward, Carol V.
2016
Volltextzugriff (PDF)
Details
Autor(en) / Beteiligte
Hammond, Ashley S.
Plavcan, J. Michael
Ward, Carol V.
Titel
A validated method for modeling anthropoid hip abduction in silico
Ist Teil von
American journal of physical anthropology, 2016-07, Vol.160 (3), p.529-548
Ort / Verlag
United States: Blackwell Publishing Ltd
Erscheinungsjahr
2016
Quelle
Access via Wiley Online Library
Beschreibungen/Notizen
ABSTRACT Objectives The ability to reconstruct hip joint mobility from femora and pelves could provide insight into the locomotion and paleobiology of fossil primates. This study presents a method for modeling hip abduction in anthropoids validated with in vivo data. Methods Hip abduction simulations were performed on a large sample of anthropoids. The modeling approach integrates three‐dimensional (3D) polygonal models created from laser surface scans of bones, 3D landmark data, and shape analysis software to digitally articulate and manipulate the hip joint. Range of femoral abduction (degrees) and the abducted knee position (distance spanned at the knee during abduction) were compared with published live animal data. Results The models accurately estimate knee position and (to a lesser extent) angular abduction across broad locomotor groups. They tend to underestimate abduction for acrobatic or suspensory taxa, but overestimate it in more stereotyped taxa. Correspondence between in vivo and in silico data varies at the specific and generic level. Conclusions Our models broadly correspond to in vivo data on hip abduction, although the relationship between the models and live animal data is less straightforward than hypothesized. The models can predict acrobatic or stereotyped locomotor adaptation for taxa with values near the extremes of the range of abduction ability. Our findings underscore the difficulties associated with modeling complex systems and the importance of validating in silico models. They suggest that models of joint mobility can offer additional insight into the functional abilities of extinct primates when done in consideration of how joints move and function in vivo. Am J Phys Anthropol 160:529–548, 2016. © 2016 Wiley Periodicals, Inc.
Sprache
Englisch
Identifikatoren
ISSN: 0002-9483
eISSN: 1096-8644, 2692-7691
DOI: 10.1002/ajpa.22990
Titel-ID: cdi_proquest_miscellaneous_1795865945
Format
–
Schlagworte
Animals
,
Anthropology, Physical
,
Computer Simulation
,
Female
,
Fossils
,
Hip Joint - anatomy & histology
,
Hip Joint - physiology
,
hip joint mobility
,
in vivo
,
limb postures
,
Locomotion - physiology
,
Male
,
model validation
,
primate locomotion
,
Primates - anatomy & histology
,
Primates - physiology
,
Range of Motion, Articular - physiology
,
Reproducibility of Results
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