title: Do visually impaired people have a static balance as effective as sighted people?
abstract: 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.
authors.affiliation: A.M.P.H.O.R.E. International Moulins, France.
authors.forename: Vinciane
authors.initials: V
authors.lastname: Sobry
authors.affiliation: A.M.P.H.O.R.E. International Moulins, France.
authors.forename: Philippe
authors.initials: P
authors.lastname: Badin
authors.affiliation: University of Craiova Faculty of Physical Education and Sport, Dolj, Romania.
authors.forename: Sorina
authors.initials: S
authors.lastname: Cernaianu
authors.affiliation: Université Nord de France, Département de médecine physique, Direction de la recherche médicale, Groupe hospitalier de l'institut catholique Lillois, Lille, France.
authors.forename: Olivier
authors.initials: O
authors.lastname: Agnani
authors.affiliation: Rehabilitation Hospital Inkendaal, Vlezenbeek, Belgium.
authors.forename: Michel
authors.initials: M
authors.lastname: Toussaint
mesh_terms: D000328:Adult; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D004856:Postural Balance; D014786:Vision Disorders / Q000503:physiopathology*
keywords: Balance (static); Vietnamese; stabilometric platform; visual handicap