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The Scientific World Journal
Volume 2014 (2014), Article ID 964576, 9 pages
http://dx.doi.org/10.1155/2014/964576
Research Article

Improving Vision-Based Motor Rehabilitation Interactive Systems for Users with Disabilities Using Mirror Feedback

1Unitat de Gràfics, Visió i Intelligència Artificial, Department de Ciències Matemàtiques i Informàtica, Universitat de les Illes Balears, E07122 Palma, Spain
2Grup d’Investigació d’Evidència, Estils de Vida i Salut, Department d’Infermeria i Fisioteràpia, Universitat de les Illes Balears, E07122 Palma, Spain

Received 17 May 2014; Revised 5 August 2014; Accepted 22 August 2014; Published 11 September 2014

Academic Editor: Ching-Yi Wu

Copyright © 2014 Antoni Jaume-i-Capó et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Observation is recommended in motor rehabilitation. For this reason, the aim of this study was to experimentally test the feasibility and benefit of including mirror feedback in vision-based rehabilitation systems: we projected the user on the screen. We conducted a user study by using a previously evaluated system that improved the balance and postural control of adults with cerebral palsy. We used a within-subjects design with the two defined feedback conditions (mirror and no-mirror) with two different groups of users (8 with disabilities and 32 without disabilities) using usability measures (time-to-start () and time-to-complete ()). A two-tailed paired samples -test confirmed that in case of disabilities the mirror feedback facilitated the interaction in vision-based systems for rehabilitation. The measured times were significantly worse in the absence of the user’s own visual feedback ( () and ()). In vision-based interaction systems, the input device is the user’s own body; therefore, it makes sense that feedback should be related to the body of the user. In case of disabilities the mirror feedback mechanisms facilitated the interaction in vision-based systems for rehabilitation. Results recommends developers and researchers use this improvement in vision-based motor rehabilitation interactive systems.