NDLI: Comparison of three different models to represent the wrist during wheelchair propulsion

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Comparison of three different models to represent the wrist during wheelchair propulsion

Content Provider	IEEE Xplore Digital Library
Author	Shimada, S.D. Cooper, R.A. Boninger, M.L. Koontz, A.M. Corfman, T.A.
Copyright Year	2001
Abstract	Due to the high incidence of secondary wrist injury among manual wheelchair users, recent emphasis has been placed on the investigation of wheelchair propulsion biomechanics. Accurate representation of wrist activity during wheelchair propulsion may help to elucidate the mechanisms contributing to the development of wrist injuries. Unfortunately, no consensual wrist biomechanical model has been established. In order to determine if different methodologies obtain similar results, this investigation created and compared three different wrist models: 1) a fixed joint center placed between the styloids (midstyloid joint center); 2) a joint center with 2/spl deg/ of freedom computed from de Leva's joint center data; and 3) a floating joint center. Results indicate that wrist flexion and extension angles are highly consistent between models, however, radial and ulnar deviation angles vary considerably. Mean maximum right flexion angles were found to be 3.5/spl deg/, 2.2/spl deg/, and 5.0/spl deg/ for the midstyloid, de Leva, and floating joint center models, respectively. Extension angles were 22.3/spl deg/, 23.6/spl deg/, and 23.6/spl deg/, respectively. Mean maximum right radial deviation angles for the midstyloid, de Leva, and floating joint center models were 26.0/spl deg/, 26.9/spl deg/, and 45.1/spl deg/, respectively, and ulnar deviation angles were found to be 30.5/spl deg/, 38.8/spl deg/, and 10.2/spl deg/, respectively. This information is useful when comparing kinematic studies and further supports the need for consensual methodology.
Sponsorship	IEEE Engineering in Medicine and Biology Society
Page Count	9
File Size	288571
Starting Page	274
Ending Page	282
File Format	PDF
ISSN	15344320
Volume Number	9
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-09-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wrist Wheelchairs Propulsion Laboratories Injuries Biomechanics Biomedical engineering Ergonomics Medical services Kinematics
Content Type	Text
Resource Type	Article
Subject	Neuroscience Rehabilitation Internal Medicine Biomedical Engineering Computer Science Applications

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