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Error in the description of foot kinematics due to violation of rigid body assumptions

Nester, CJ, Liu, A, Ward, E, Howard, D, Cocheba, J and Derrick, T 2010, 'Error in the description of foot kinematics due to violation of rigid body assumptions' , Journal of Biomechanics, 43 (4) , pp. 666-672.

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Abstract

Kinematic data from rigid segment foot models inevitably includes errors because the bones within each segment move relative to each other. This study sought to define error in foot kinematic data due to violation of the rigid segment assumption. The research compared kinematic data from 17 different mid and forefoot rigid segment models to kinematic data of the individual bones comprising these segments. Kinematic data from a previous dynamic cadaver model study was used to derive individual bone as well as foot segment kinematics. Mean and maximum errors due to violation of the rigid body assumption varied greatly between models. The model with least error was the combination of navicular and cuboid (mean errors <=1.3°, average maximum error <=2.4°). Greatest error was seen for the model combining all the ten bones (mean errors <=4.4°, average maximum errors <=6.9°). Based on the errors reported a three segment mid and forefoot model is proposed: (1) Navicular and cuboid, (2) cuneiforms and metatarsals 1, 2 and 3, and (3) metatarsals 4 and 5. However the utility of this model will depend on the precise purpose of the in vivo foot kinematics research study being undertaken.

Item Type: Article
Themes: Subjects / Themes > R Medicine > RZ Other systems of medicine
Health and Wellbeing
Schools: Colleges and Schools > College of Health & Social Care > School of Health Sciences > Centre for Health Sciences Research
Colleges and Schools > College of Health & Social Care
Colleges and Schools > College of Health & Social Care > School of Health Sciences
Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering > CASE Control & Systems Engineering Research Centre
Journal or Publication Title: Journal of Biomechanics
Publisher: Elsevier
Refereed: Yes
ISSN: 00219290
Depositing User: RH Shuttleworth
Date Deposited: 09 May 2011 13:26
Last Modified: 24 Jul 2014 13:17
URI: http://usir.salford.ac.uk/id/eprint/14969

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