Article

The current study addressed the role of visual information in the control of
locomotion in people with Parkinson's disease. Twelve healthy individuals and 12
mild to moderate Parkinson's disease patients were examined while walking at
self-selected velocities, under three visual sampling conditions: dynamic (normal
lighting), static (static visual samples) and voluntary visual sampling. Subjects
wore liquid crystal glasses for visual manipulation. Outcome measures included
spatial-temporal parameters, braking and propulsive impulses, number of samples
and total duration of voluntary visual samples. Interaction between groups and
visual conditions was not observed for kinematic parameters or braking and
propulsive impulses. There were no significant differences between groups for
voluntary visual sampling variables. These findings suggest that the visual
control of locomotion in Parkinson's disease patients was similar to that
observed in controls. Furthermore, Parkinson's disease patients were not more
dependent on visual information than healthy individuals for the locomotion
control.
CI - Copyright (c) 2011 Elsevier B.V. All rights reserved.

Langue : ANGLAIS