Article

The purpose of this study was to determine whether signatures of adaptive
postural control remain present in children with cerebral palsy (CP) when they
performed a supra-postural task (i.e., a task performed above and beyond the
control of posture) requiring them to balance a marble inside a tube held in the
hands. Measures of center of pressure (COP) dynamics (how regular or predictable
were the COP data as quantified by the sample entropy metric) and variability (as
quantified by the COP standard deviation) were obtained from a sample of children
with CP (n=30) and compared to the same measures taken from typically developing
(TD) children. Children with CP demonstrated an apparent inefficiency in postural
control (greater irregularity, greater sway variability) relative to TD peers
during a quiet-stance (no supra-postural task) condition (p<.05). During
supra-postural task performance, those differences were attenuated, though they
remained statistically different
(p<.05). The findings illustrate flexibility and
adaptability in the postural control system, despite the pathological features
associated with CP.
CI - Copyright (c) 2015 Elsevier B.V. All rights reserved.

Langue : ANGLAIS