NDLI: An alternative technical marker set for the pelvis is more repeatable than the standard pelvic marker set.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Borhani, Maedeh McGregor, Alison H. Bull, Anthony M. J.
Description	Author Affiliation: Borhani M ( Department of Bioengineering and Surgery and Cancer, Royal School of Mines, South Kensington Campus, Imperial College London, London SW7 2AZ, United Kingdom. Electronic address: mb107@imperial.ac.uk.)
Abstract	Multiple marker sets and models are currently available for assessing pelvic kinematics in gait. Despite the presence of a variety models, there are still debates on their reliability and consistency, and consequently there is no clearly defined standard. Two marker sets were evaluated in this study: the 'Traditional' where markers are placed at the anterior and posterior superior iliac spines (ASISs, PSISs); and the 'Cluster', where a cluster of three orthogonal markers fixed on a rigid based is attached to the sacrum. The two sets were compared with respect to intra and inter session standard deviations of maximum pelvic tilt, obliquity and rotation angles. The repeatability between and within sessions was measured using coefficient of multiple correlation (CMC). Also the similarity between the two sets was assessed using inter-protocol CMC (ipCMC). Both data sets generated showed high within and between session repeatability in the sagittal plane (CMC>0.80), although the Cluster method showed higher repeatability than that of the Traditional method in non-sagittal plane motion for both within and between sessions. The authors are not aware of other studies reporting the differences in intra and inter session variability and repeatability values for different body mass index categories such as overweight and obese subjects with relatively large sample size. Hence the Cluster method overcomes a number of theoretical and experimental limitations such as minimising the marker occlusion and is a reliable alternative to the Traditional (the standard) marker set.
File Format	HTM / HTML
ISSN	09666362
e-ISSN	18792219
DOI	10.1016/j.gaitpost.2013.05.019
Journal	Gait & Posture
Issue Number	4
Volume Number	38
Language	English
Publisher	Elsevier
Publisher Date	2013-09-01
Publisher Place	Great Britain (UK)
Access Restriction	Open
Subject Keyword	Discipline Orthopedics Comparative Study Gait Pelvis Reproducibility Of Results Artifacts Biomechanical Phenomena Range Of Motion, Articular Physiology
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine Rehabilitation Biophysics Sports Science

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