Development and Application of a Virtual Reality Stumble Method to Test an Angular Velocity Control Orthosis

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Title: Development and Application of a Virtual Reality Stumble Method to Test an Angular Velocity Control Orthosis
Authors: Montgomery, Whitney S.
Date: 2013
Abstract: The Ottawalk-Speed (OWS) orthosis prevents knee collapse in stumble situations. The purpose of this study was to develop a virtual stumble perturbation to measure OWS response to a knee collapse when walking. A new split speed perturbation was developed for the CAREN virtual reality system. This perturbation induced a stumble with increased knee flexion for five able-bodied participants, with either a hopping or stopping recovery strategy. Three knee-ankle-foot orthosis users were subjected to five stumble trials while wearing the OWS. OWS participants used a straight-legged recovery strategy, and extended the knee through recovery weight acceptance. Therefore, the split speed perturbation was not appropriate to measure OWS response to a stumble since knee collapse did not occur. The OWS allowed free knee motion during gait. Further study is required to measure OWS response during a stumble with a knee collapse event.
URL: http://hdl.handle.net/10393/24225
http://dx.doi.org/10.20381/ruor-3028
CollectionThèses, 2011 - // Theses, 2011 -
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