title: [Differences in standing balance in patients with cerebral palsy and typically developing children].
abstract: BACKGROUND
  Physical disability is the most common disability (10.3 %) in the central area of Chile. The cerebral palsy is one of the diseases that generates motor deficits and loss of balance. Balance is crucial for maintaining postural stability.
  
  
  OBJECTIVE
  To establish the differences in area and average velocity of the center of pressure between typically developing children and cerebral palsy patients, and to determine the degree of use of different sensory systems.
  
  
  METHODS
  This was a cross-sectional study. A convenience sample was divided into two groups: typically developing children (n=7) and cerebral palsy patients (n=7). The parameters measured by a force plate were the area and average velocity of excursion of the center of pressure, as well as the frequency bands ( 0.0625, 0.125, 0.25, 0.5, 1, 2 and 4 Hz) .
  
  
  RESULTS
  During the eyes open condition, the cerebral palsy subject had an average velocity of the center of pressure significantly higher than the typically developing children group (p=0.043). The frequency bands 0.25 Hz and 0.5 Hz related to the vestibular system showed significant differences between groups (p=0.021 y p=0.036). In the eyes closed phase a significant increase in the area of the center of pressure and a higher use of the otolithic vestibular system were observed in the cerebral palsy group.
  
  
  CONCLUSIONS
  Cerebral palsy patients showed a lower standing balance in addition to using the vestibular system significantly more both in eyes open and eyes closed phases.
authors: Laboratorio de Control Motor Humano, Escuela de Kinesiología, Facultad de Ciencias de la Salud, Universidad de Talca, Talca, Chile.
authors: Valeska Fabiola
authors: VF
authors: Gatica
authors: Escuela de Kinesiología, Facultad de Ciencias de la Salud, Universidad de Talca, Talca, Chile.
authors: Sofía
authors: S
authors: Irene Velásquez
authors: Laboratorio de Control Motor Humano, Escuela de Kinesiología, Facultad de Ciencias de la Salud, Universidad de Talca, Talca, Chile.
authors: Guillermo Andrés
authors: GA
authors: Méndez
authors: Escuela de Kinesiología, Facultad de Ciencias de la Salud, Universidad de Talca, Talca, Chile.
authors: Eduardo Enrique
authors: EE
authors: Guzmán
authors: Programa de Doctorado en Ciencias Médicas, Universidad de La Frontera.
authors: Carlos Guillermo
authors: CG
authors: Manterola
mesh_terms: D000293:Adolescent; D002547:Cerebral Palsy / Q000503:physiopathology*; D002648:Child; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D004856:Postural Balance / Q000502:physiology*