NDLI: Kinematic features of arm and trunk movements in stroke patients and age-matched healthy controls during reaching in virtual and physical environments

Content Provider	IEEE Xplore Digital Library
Author	Liebermann, D.G. Berman, S. Levin, M.F. Weingarden, H.P. Weiss, P.L.
Copyright Year	2009
Description	Author affiliation: Dept. of Occupational Therapy, Faculty of Social Welfare & Health Sciences, University of Haifa, Israel (Weiss, P.L.) \|\| Dept. of Physical Therapy, Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, 69978 Israel (Liebermann, D.G.) \|\| Department of Neurologic Rehabilitation, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel (Weingarden, H.P.) \|\| Dept. of Physical & Occupational Therapy, Faculty of Medicine, McGill University, Montreal, Canada (Berman, S.) \|\| Dept. of Industrial Engineering & Management, Ben Gurion University of the Negev, Beer Sheva, Israel (Levin, M.F.)
Abstract	Motor performance of stroke patients and healthy individuals was compared in terms of selected kinematic features of arm and trunk movements while subjects reached for visual targets in virtual (VR) and physical (PH) environments. In PH, the targets were placed at an extended arm distance, while in VR comparably placed virtual targets were presented via GestureTek's IREX system. Our goal was to obtain further insights into research methods related to VR-based rehabilitation. Eight right-hemiparetic stroke patients (age =46–87 years) and 8 healthy adults (age =51–73 years) completed 84 reaching movements in VR and PH environments while seated. The results showed that arm and trunk movements differed in the two environments in patients and to a lesser extent in healthy individuals. Arm motion of patients became jerkier in VR, with larger paths and longer movement durations, and presented greater arm torsion (i.e., larger elbow rotations around the hand-shoulder axis). Interestingly, patients also showed a significant reduction of compensatory trunk movements during VR reaching. The findings indicate that when targets were perceived to be beyond hand reach, stroke patients may be less able to estimate 3D virtual target locations obtained from the 2D TV planar displays. This was not the case for healthy participants.
Starting Page	179
Ending Page	184
File Size	399780
Page Count	6
File Format	PDF
ISBN	9781424441884
DOI	10.1109/ICVR.2009.5174228
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-29
Publisher Place	Israel
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Physical Environment TV Medical treatment Industrial engineering Stroke Rehabilitation Environmental management Gallium nitride Reaching Arm and Trunk Kinematics Virtual Enviroment Engineering management Kinematics Virtual reality Three dimensional displays Elbow
Content Type	Text
Resource Type	Article

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