TY  - JOUR
PY  - 2019//
TI  - A quantitative analysis of postural control in elderly patients with vestibular disorders using visual stimulation by virtual reality
JO  - Revista brasileira de otorrinolaringologia
A1  - Gazzola, Juliana Maria
A1  - Caovilla, Heloisa Helena
A1  - Doná, Flávia
A1  - Ganança, Mauricio Malavasi
A1  - Ganança, Fernando Freitas
SP  - ePub
EP  - ePub
VL  - ePub
IS  - ePub
N2  - INTRODUCTION: Postural instability is one the most common disabling features in vestibular disorders. <br><br>OBJECTIVE: This study aimed to analyze the limit of stability and the influence of manipulation of visual, somatosensorial and visual-vestibular information on postural control in older adults with vestibular disorder, with and without a history of falls. <br><br>METHODS: Cross-sectional study. Participants - 76 elderly patients with vestibular disorder (G1, without falls; G2, with falls) and 41 healthy elderly subjects (Control Group; CG). Using posturography, analyzed were limit of stability area, body center of pressure, and velocity of oscillation in the standing position in 10 conditions, including open/closed eyes, unstable surface with eyes closed, saccadic and optokinetic stimuli, and visual-vestibular interaction. <br><br>RESULTS: Limit of stability area in CG was better compared with G1-2, and center of pressure values were worse in G1 than in CG. Center of pressure area in all conditions and velocity of oscillation in the following conditions: open/closed eyes, optokinetic stimulation, and visual-vestibular interaction showed worse values in G2 than in CG. Center of pressure area in the following conditions: open/closed eyes, saccadic and optokinetic stimuli, visual-vestibular interaction, and unstable surface with eyes closed showed worse values in G2 than in G1. <br><br>CONCLUSION: Older adults with vestibular disorder presented reduced limit of stability and increased postural sway in the following conditions: conflict between visual and somatosensory information and visual-vestibular interaction. Deterioration in postural control was significantly associated with history of falls.<br><br>Copyright © 2019 Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial. Published by Elsevier Editora Ltda. All rights reserved.<p />  <p>Language: en</p>
LA  - en
SN  - 1808-8694
UR  - http://dx.doi.org/10.1016/j.bjorl.2019.03.001
ID  - ref1
ER  -