A quantitative analysis of postural control in elderly patients with vestibular disorders using visual stimulation by virtual reality.
Braz J Otorhinolaryngol
; 86(5): 593-601, 2020.
Article
em En
| MEDLINE
| ID: mdl-31175041
ABSTRACT
INTRODUCTION:
Postural instability is one the most common disabling features in vestibular disorders.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.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.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.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.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Equilíbrio Postural
/
Realidade Virtual
Tipo de estudo:
Observational_studies
/
Prevalence_studies
/
Risk_factors_studies
Limite:
Aged
/
Humans
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article