The stochastic component of the postural sway variability is higher in children with balance impairments

2014

Max Kurz
[email protected]
402-559-9599

Children with balance impairments have an increased amount of variability in the sway of the center of pressure (COP) during standing. Limited efforts have been made to quantify the nature of the variability. This exploratory investigation examined the deterministic and stochastic features that comprise the time-dependent postural sway variability during standing. We measured the COP in standing of a heterogeneous group of children with balance impairments and an age-matched cohort of typically developing children, both with and without vision. The standard deviation of the COP was used to quantify the amount of variability present in the postural sway. A Langevin equation methodology was additionally employed to reconstruct the deterministic and stochastic features that comprised the postural sway variability. Our experiment resulted in three key findings: (1) removal of visual information increased the stochastic features of the postural sway variability

Balance, Noise, Nonlinear analysis, vision

Peer-reviewed publications in scholarly journals Published/In Press

Professionals

http://bmes.org/annals

N/A