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Does a specific MR imaging protocol with a supine-lying subject replicate tarsal kinematics seen during upright standing? / Bildet ein spezifisches MR-Verfahren mit rücklings liegendem Probanden die tarsale Kinematik unter stehenden Bedingungen nach?

Wolf, P, Stacoff, A, Liu, A, Arndt, A, Nester, CJ, Lundberg, A and Stuessi, E 2007, 'Does a specific MR imaging protocol with a supine-lying subject replicate tarsal kinematics seen during upright standing? / Bildet ein spezifisches MR-Verfahren mit rücklings liegendem Probanden die tarsale Kinematik unter stehenden Bedingungen nach?' , Biomedizinische Technik/Biomedical Engineering, 52 (4) , pp. 290-294.

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Abstract

Magnetic resonance (MR) imaging is becoming increasingly important in the study of foot biomechanics. Specific devices have been constructed to load and position the foot while the subject is lying supine in the scanner. The present study examines the efficacy of such a newly developed device in replicating tarsal kinematics seen during the more commonly studied standing loading conditions. The results showed that although knee flexion and the externally applied load were carefully controlled, subtalar and talo-navicular joint rotations while lying during MR imaging and when standing (measured opto-electrically with markers attached to intracortical pins) did not match, nor were they systematically shifted. Thus, the proposed MR protocol cannot replicate tarsal kinematics seen during upright standing. It is concluded that specific foot loading conditions have to be considered when tarsal kinematics are evaluated. Improved replication of tarsal kinematics in different postures should comprehensively consider muscle activity, a fixed hip position, and a well-defined point of load application.

Item Type: Article
Themes: Health and Wellbeing
Schools: Colleges and Schools > College of Health & Social Care > School of Health Sciences > Centre for Health Sciences Research
Journal or Publication Title: Biomedizinische Technik/Biomedical Engineering
Publisher: Walter de Gruyter
Refereed: Yes
ISSN: 0013-5585
Depositing User: Users 29196 not found.
Date Deposited: 22 Feb 2012 11:22
Last Modified: 20 Aug 2013 18:24
URI: http://usir.salford.ac.uk/id/eprint/20656

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