title: Differences in seated postural control in children with spastic cerebral palsy and children who are typically developing.
abstract: OBJECTIVE
  To quantitatively evaluate the difference of posture control in sitting position between children with spastic cerebral palsy and normal subjects.
  
  
  METHODS
  Twenty children with spastic cerebral palsy who could sit independently and 20 age- and sex-matched normal children were enrolled. The Chatteex Balance System was used to evaluate static and dynamic posture control as the subjects were sitting on a bench. The sway distance in sagittal and lateral directions, sway ratio, and sway index in both the static and dynamic sitting positions were recorded by the Chatteex Balance System.
  
  
  RESULTS
  There was a significantly lower static and dynamic sway ratio and a greater static sway index and dynamic lateral sway distance in the study group. The dynamic sway index in the study group was greater than the index in the control group, although it did not reach statistical significance.
  
  
  CONCLUSIONS
  Children with diplegic cerebral palsy did perform significantly worse in sitting posture control compared with normal subjects of similar chronological age. The sway index and sway ratio proved to be the objective and sensitive indicators that can be used to distinguish children with cerebral palsy from normal peer groups.
authors.affiliation: Department of Physical Medicine and Rehabilitation, Changhua Christian Hospital, Changhua, Taiwan.
authors.forename: Su-Fen
authors.initials: SF
authors.lastname: Liao
authors.forename: Tsui-Fen
authors.initials: TF
authors.lastname: Yang
authors.forename: Tao-Chang
authors.initials: TC
authors.lastname: Hsu
authors.forename: Rai-Chi
authors.initials: RC
authors.lastname: Chan
authors.forename: Ta-Sen
authors.initials: TS
authors.lastname: Wei
mesh_terms: D016022:Case-Control Studies; D002547:Cerebral Palsy / Q000503:physiopathology*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D009068:Movement; D009069:Movement Disorders / Q000503:physiopathology*; D004856:Postural Balance; D011187:Posture