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Clinical evaluation of Guido robotic walker

Andrew J. Rentschler, PhD, et al.

Figure. Front view of Guido robotic walker.

The Guido is a robotic walker that provides navigation and obstacle avoidance assistance. Previous testing found that the device met applicable design standards. This study determined whether the Guido met reasonable performance stand-ards. The performance of the Guido was compared with a low-tech mobility aid developed at the Atlanta Department of Veterans Affairs Medical Center, the Assistive Mobility Device (AMD), in trials involving older adults with visual impairments. Subjects traversed an obstacle course with the Guido and the AMD. Completion time, obstacle and wall contacts, and reorientations were compared for both devices. The Guido did not perform better than the AMD during the trials. Revisions to the device as well as a change in subject requirements and testing protocol may produce different results.



Volume 45 Number 9, 2008
   Pages 1281 — 1294

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