European Journal of Pediatrics

, Volume 171, Issue 7, pp 1087–1094

Postural control among children with and without attention deficit hyperactivity disorder in single and dual conditions

  • Zamir Shorer
  • Boaz Becker
  • Talia Jacobi-Polishook
  • Lars Oddsson
  • Itshak Melzer
Original Article

DOI: 10.1007/s00431-012-1695-7

Cite this article as:
Shorer, Z., Becker, B., Jacobi-Polishook, T. et al. Eur J Pediatr (2012) 171: 1087. doi:10.1007/s00431-012-1695-7

Abstract

Given the known deficits in attention in attention deficit hyperactivity disorder (ADHD) and the evidence suggesting that postural control requires attention, this study aimed to investigate the mechanisms of postural control of children with and without ADHD in single-(ST) and dual-task (DT) conditions. Postural sway and stabilogram diffusion analysis (SDA) were performed on the Center of Pressure trajectories on 24 ADHD children and 17 age–gender-matched healthy controls. The subjects were instructed to stand as stable as possible on a force platform in two task conditions: (1) single task (ST) and (2) dual task (DT)—an auditory-memory attention-demanding cognitive task. During ST and DT conditions, the ADHD children showed significantly greater ML-sway, short- and long-term effective diffusion coefficients, and critical displacement of SDA compared with controls. The effects of DT were somewhat unexpected; the control group indicated a significant decrease in ML-sway, AP-sway, sway area, and critical displacement of SDA; the ADHD group showed a significant decrease in ML-sway range and critical displacement. It is concluded that a greater sway displacement before closed-loop mechanisms is called into play in ADHD children. The DT enhanced balance control by reinforcing balance automaticity and minimizing sway in both healthy and ADHD children.

Keywords

Attention deficit hyperactivity disorder Postural stability Stabilogram diffusion analysis Single task Dual task 

Copyright information

© Springer-Verlag 2012

Authors and Affiliations

  • Zamir Shorer
    • 1
  • Boaz Becker
    • 2
  • Talia Jacobi-Polishook
    • 1
    • 2
  • Lars Oddsson
    • 3
  • Itshak Melzer
    • 2
  1. 1.Pediatric Neurology Unit, Soroka Medical Center and the Faculty of Health SciencesBen-Gurion University of the NegevBeer-ShevaIsrael
  2. 2.Schwartz Movement Analysis & Rehabilitation Laboratory, Department of Physical TherapyFaculty of Health Sciences Ben-Gurion University of the NegevBeer-ShevaIsrael
  3. 3.Sister Kenny Rehabilitation InstituteSister Kenny Research CenterMinneapolisUSA

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