Static Postural Control in Youth With Osteogenesis Imperfecta Type I

• Published in: Archives of physical medicine and rehabilitation Vol. 98; no. 10; pp. 1948 - 1954
• Main Authors: Pouliot-Laforte, Annie, Lemay, Martin, Rauch, Frank, Veilleux, Louis-Nicolas
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 01.10.2017
• Subjects: Adolescent; Child; Cross-Sectional Studies; Exercise Test; Female; Healthy subjects; Humans; Lower Extremity - physiopathology; Male; Muscle function; Muscle Strength - physiology; Osteogenesis imperfecta; Osteogenesis Imperfecta - physiopathology; Physical Medicine and Rehabilitation; Postural balance; Postural Balance - physiology; Proprioception; Rehabilitation; Young Adult; TD; Postural balance; Proprioception; Osteogenesis imperfecta; Healthy subjects; Muscle function; OI; Rehabilitation; Mechanography; Center of Force; Postural control; Typically developing; CoF; Osteogenesis Imperfecta
• DOI: 10.1016/j.apmr.2017.03.018
• ISSN: 0003-9993; 1532-821X

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. Cross-sectional study. Outpatient department of a pediatric orthopedic hospital. 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. Not applicable. 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. 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. A proprioceptive deficit could explain poorer postural control in individuals with OI type I. •Postural control deficits are reported in youth with osteogenesis imperfecta type I.•Poorer postural control was not associated with muscle function deficits.•Proprioceptive deficits could explain poorer postural control in osteogenesis imperfecta type I.