NDLI: Comparative abilities of Microsoft Kinect and Vicon 3D motion capture for gait analysis.

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Comparative abilities of Microsoft Kinect and Vicon 3D motion capture for gait analysis.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Pfister, Alexandra West, Alexandre M. Bronner, Shaw Noah, Jack Adam
Description	Country affiliation: United States Author Affiliation: Pfister A ( ADAM Center, Long Island University , Brooklyn, NY , USA .)
Abstract	Biomechanical analysis is a powerful tool in the evaluation of movement dysfunction in orthopaedic and neurologic populations. Three-dimensional (3D) motion capture systems are widely used, accurate systems, but are costly and not available in many clinical settings. The Microsoft Kinect™ has the potential to be used as an alternative low-cost motion analysis tool. The purpose of this study was to assess concurrent validity of the Kinect™ with Brekel Kinect software in comparison to Vicon Nexus during sagittal plane gait kinematics. Twenty healthy adults (nine male, 11 female) were tracked while walking and jogging at three velocities on a treadmill. Concurrent hip and knee peak flexion and extension and stride timing measurements were compared between Vicon and Kinect™. Although Kinect measurements were representative of normal gait, the Kinect™ generally under-estimated joint flexion and over-estimated extension. Kinect™ and Vicon hip angular displacement correlation was very low and error was large. Kinect™ knee measurements were somewhat better than hip, but were not consistent enough for clinical assessment. Correlation between Kinect™ and Vicon stride timing was high and error was fairly small. Variability in Kinect™ measurements was smallest at the slowest velocity. The Kinect™ has basic motion capture capabilities and with some minor adjustments will be an acceptable tool to measure stride timing, but sophisticated advances in software and hardware are necessary to improve Kinect™ sensitivity before it can be implemented for clinical use.
File Format	HTM / HTML
ISSN	03091902
Issue Number	5
Volume Number	38
e-ISSN	1464522X
Journal	Journal of Medical Engineering & Technology
Language	English
Publisher	Taylor & Francis
Publisher Date	2014-07-01
Publisher Place	Great Britain (UK)
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Biomedical Engineering Discipline Technology Discipline Health Services Research Gait Physiology Imaging, Three-dimensional Software Adolescent Adult Biomechanical Phenomena Female Hip Joint Humans Knee Joint Male Running Walking Young Adult Comparative Study Journal Article
Content Type	Text
Resource Type	Article
Subject	Medicine Biomedical Engineering

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