The role of vision in Parkinson's disease locomotion control: Free walking task

Rodrigo Vitório; Ellen Lirani-Silva; Fabio Augusto Barbieri; Vivian Raile; Rosangela Alice Batistela; Florindo Stella; Lilian Teresa Bucken Gobbi

doi:10.1016/j.gaitpost.2011.09.002

The role of vision in Parkinson's disease locomotion control: Free walking task

Rodrigo Vitório^*, Ellen Lirani-Silva, Fabio Augusto Barbieri, Vivian Raile, Rosangela Alice Batistela, Florindo Stella, Lilian Teresa Bucken Gobbi

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	175-179
Number of pages	5
Journal	Gait and Posture
Volume	35
Issue number	2
Early online date	29 Sept 2011
DOIs	https://doi.org/10.1016/j.gaitpost.2011.09.002
Publication status	Published - 1 Feb 2012
Externally published	Yes

Keywords

Gait
Motor control
Optic flow
Parkinson's disease

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10.1016/j.gaitpost.2011.09.002

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title = "The role of vision in Parkinson's disease locomotion control: Free walking task",

abstract = "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.",

keywords = "Gait, Motor control, Optic flow, Parkinson's disease",

author = "Rodrigo Vit{\'o}rio and Ellen Lirani-Silva and Barbieri, {Fabio Augusto} and Vivian Raile and Batistela, {Rosangela Alice} and Florindo Stella and Gobbi, {Lilian Teresa Bucken}",

note = "Funding information: This study was supported by the Funda{\c c}{\~a}o de Amparo {\`a} Pesquisa do Estado de S{\~a}o Paulo as a scholarship (FAPESP #2007/06261-0).",

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AU - Raile, Vivian

AU - Batistela, Rosangela Alice

AU - Stella, Florindo

AU - Gobbi, Lilian Teresa Bucken

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The role of vision in Parkinson's disease locomotion control: Free walking task

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Keywords

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