Effect of Cognitive Task on Postural Control of the Patients With Chronic Ankle Instability During Single and Double Leg Standing

J Bodyw Mov Ther. 2017 Jan;21(1):58-62. doi: 10.1016/j.jbmt.2016.05.001. Epub 2016 May 13.


Objective: The aim of this study was to investigate the effect of a cognitive task on standing postural control of the injured and non-injured leg of athletes with chronic ankle instability.

Methods: Postural stability was measured by center of pressure parameters while chronic ankle instability patients (n = 8) randomly performed single and double leg standing in isolation or concurrently with a digit-backward cognitive task.

Results: After performing a concurrent cognitive task, anteroposterior sway significantly decreased in injured leg (P < 0.05) and area significantly decreased in both injured and non-injured legs (P < 0.05). There was no significant difference in all center of pressure parameters between injured and non-injured legs.

Conclusion: The findings confirm the effect of a concurrent digit-backwards memory task on single leg standing balance in chronic ankle instability patients but the response to cognitive loading was not significantly different between the injured and non-injured legs.

Keywords: Chronic ankle instability; Cognitive task; Dual task; Postural control.

Publication types

  • Clinical Trial

MeSH terms

  • Adolescent
  • Adult
  • Ankle Joint / physiopathology*
  • Athletes*
  • Chronic Disease
  • Cognition / physiology*
  • Female
  • Humans
  • Joint Instability / physiopathology*
  • Male
  • Postural Balance / physiology*
  • Posture / physiology
  • Young Adult