Citation

Pouliot-Laforte A, Lemay M, Rauch F, Veilleux LN. Arch. Phys. Med. Rehabil. 2017; 98(10): 1948-1954.

Affiliation

Shriners Hospital for Children-Canada, 1003 Decarie Blvd, Montréal, Qc, Canada H4A 0A9; Department of kinesiology, University of Montréal, 2100, boul. Édouard-Montpetit, Bureau 8202 Montréal (Qc), H3T 1J4. Electronic address: lnveilleux@shriners.mcgill.ca.

Copyright

(Copyright © 2017, Elsevier Publishing)

DOI

10.1016/j.apmr.2017.03.018

PMID

28433416

Abstract

OBJECTIVE: To assess static postural control in eyes-open and eyes-closed conditions in individuals with osteogenesis imperfecta (OI) type I as compared to typically developing (TD) individuals. The second aim was to explore the relation between postural control and lower-limbs muscle function.

DESIGN: This is a cross-sectional study. SETTINGS: The study was carried out in the outpatient department of a pediatric orthopedic hospital. PARTICIPANTS: 22 individuals with OI type I (mean age [range]: 13.1 [6-21] years) and 16 typically developing (TD) individuals (mean age [range]: 13.1 [6-20] years) participated in the study. A convenience sample of participants 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 prior to testing. MAIN OUTCOMES MEASURES: Postural control was assessed through static balance tests and muscle function through mechanograhic tests, on a force plateform. Selected postural parameters were: path length and velocity, 90% confidence ellipse area and the ellipse's medio-lateral and antero-posterior axes length. Mechanographic parameters were peak force (kN) and peak power (kW) as measured in the Multiple Two-Legged Hopping and the Single Two-Legged jump, respectively.

RESULTS: OI type I had poorer postural control than TD 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 for the OI group compared to the TD group.

CONCLUSIONS: A proprioceptive deficit is suggested to explain decreased postural control in individuals with OI type I.

Copyright © 2017 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.

Language: en

Keywords

Mechanography; Muscle function; Osteogenesis Imperfecta; Postural control; Proprioception; Typically developing