title: Evaluation of postural control in unilateral vestibular hypofunction.
abstract: BACKGROUND
  Patients with vestibular hypofunction, a typical finding in peripheral vestibular disorders, show body balance alterations.
  
  
  OBJECTIVE
  To evaluate the postural control of patients with vertigo and unilateral vestibular hypofunction.
  
  
  METHODS
  This is a clinical cross-sectional study. Twenty-five patients with vertigo and unilateral vestibular hypofunction and a homogeneous control group consisting of 32 healthy individuals were submitted to a neurotological evaluation including the Tetrax Interactive Balance System posturography in eight different sensory conditions.
  
  
  RESULTS
  For different positions, vertiginous patients with unilateral vestibular hypofunction showed significantly higher values of general stability index, weight distribution index, right/left and tool/heel synchronizations, Fourier transformation index and fall index than controls.
  
  
  CONCLUSIONS
  Increased values in the indices of weight distribution, right/left and tool/heel synchronizations, Fourier transformation and fall risk characterize the impairment of postural control in patients with vertigo and unilateral vestibular hypofunction.
authors.affiliation: Post-Graduation Program, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil. Electronic address: rmquitschal@yahoo.com.br.
authors.forename: Rafaela Maia
authors.initials: RM
authors.lastname: Quitschal
authors.affiliation: Post-Graduation Program, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil.
authors.forename: Jackeline Yumi
authors.initials: JY
authors.lastname: Fukunaga
authors.affiliation: Otology and Otoneurology Discipline, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo SP, Brazil.
authors.forename: Maurício Malavasi
authors.initials: MM
authors.lastname: Ganança
authors.affiliation: Otology and Otoneurology Discipline, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo SP, Brazil.
authors.forename: Heloísa Helena
authors.initials: HH
authors.lastname: Caovilla
mesh_terms: D000328:Adult; D000368:Aged; D016022:Case-Control Studies; D003430:Cross-Sectional Studies; D004244:Dizziness / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D004856:Postural Balance / Q000502:physiology*; D012720:Severity of Illness Index; D015837:Vestibular Diseases / Q000503:physiopathology*; D014724:Vestibular Function Tests
keywords: Doenças vestibulares; Equilíbrio postural; Nistagmo fisiológico; Physiological nystagmus; Postural balance; Testes de função vestibular; Vestibular diseases; Vestibular function tests