Article

OBJECTIVES: To assess static postural control in eyes-open and eyes-closed
conditions in individuals with osteogenesis imperfecta (OI)
type I as compared
with typically developing (TD) individuals and to explore the relation between
postural control and lower limb muscle function.
DESIGN: Cross-sectional study.
SETTING: Outpatient department of a pediatric orthopedic hospital. PARTICIPANTS:
A convenience sample (N=38) of individuals with OI type I (n=22; mean age, 13.1y;
range, 6-21y) and TD individuals (n=16; mean age, 13.1y; range, 6-20y) was
selected. Participants were eligible if they were between 6 and 21 years and if
they did not have any fracture or surgery in the lower limb in the 12 months
before testing. INTERVENTIONS: Not applicable. MAIN OUTCOMES MEASURES: Postural
control was assessed through static balance tests and muscle function through
mechanographic tests on a force platform. Selected postural parameters were path
length, velocity, 90% confidence ellipse area, and the ellipse's length of the
mediolateral and anteroposterior axes. Mechanographic parameters were peak force
and peak power as measured using the multiple two-legged hopping and the single
two-legged jump test, respectively. RESULTS: Individuals with OI type I had
poorer postural control than did TD individuals as indicated by longer and faster
displacements and a larger ellipse area. Muscle function was unrelated to
postural control in the OI group. Removing visual information resulted in a
larger increase in postural control parameters in the OI group than in the TD
group. CONCLUSIONS: A proprioceptive deficit could explain poorer postural
control in individuals with OI type I.
CI - Copyright (c) 2017 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS