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Abstract
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BACKGROUND: Neuroplastic compensations are reported to improve static balance in visually impaired people (VIP).
OBJECTIVE: To compare the static balance of VIP with control sighted subjects in different conditions of proprioceptive disturbance.
METHODS: Thanks to a stabilometric platform, static balance was determined by measuring (1) the speed of displacement of the center of pressure of the subjects and (2) its total surface. Recordings on surfaces with (foam) or without (hard) proprioceptive disturbance were taken with both open and closed eyes.
RESULTS: We compared 38 VIP to 36 control subjects. On hard surface, the speed of displacement was always higher in VIP than in control. On the foam surface, the speed was higher in VIP with open eyes while no difference was seen with closed eyes. The total surface of displacement was larger in VIP on the foam surface with open eyes while there was no difference either with closed eyes or on hard surface between VIP and control.
CONCLUSIONS: Static balance with open eyes is more precarious in VIP than in control. Nevertheless, VIP subjects do as well as control sighted subjects with closed eyes as shown by similar total surface of displacement irrespective with the type of surface.
Language: en |