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Clinics ; 68(4): 517-521, abr. 2013. tab
Artículo en Inglés | LILACS | ID: lil-674250

RESUMEN

OBJECTIVE: This study aimed to evaluate the influence of reduced visual information on postural control by comparing low-vision and normal-vision adults in static and dynamic conditions. METHODS: Twenty-five low-vision subjects and twenty-five normal sighted adults were evaluated for static and dynamic balance using four protocols: 1) the Modified Clinical Test of Sensory Interaction on Balance on firm and foam surfaces with eyes opened and closed; 2) Unilateral Stance with eyes opened and closed; 3) Tandem Walk; and 4) Step Up/Over. RESULTS: The results showed that the low-vision group presented greater body sway compared with the normal vision during balance on a foam surface (p≤0.001), the Unilateral Stance test for both limbs (p≤0.001), and the Tandem Walk test. The low-vision group showed greater step width (p≤0.001) and slower gait speed (p≤0.004). In the Step Up/Over task, low-vision participants were more cautious in stepping up (right p≤0.005 and left p≤0.009) and in executing the movement (p≤0.001). CONCLUSION: These findings suggest that visual feedback is crucial for determining balance, especially for dynamic tasks and on foam surfaces. Low-vision individuals had worse postural stability than normal-vision adults in terms of dynamic tests and balance on foam surfaces. .


Asunto(s)
Adulto , Femenino , Humanos , Masculino , Adulto Joven , Equilibrio Postural/fisiología , Baja Visión/fisiopatología , Visión Ocular/fisiología , Análisis de Varianza , Estudios de Casos y Controles , Estudios Transversales , Técnicas de Diagnóstico Neurológico , Factores de Tiempo , Caminata/fisiología
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