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Identification of Post-Concussion Dual-Task Gait Abnormalities Using Normative Reference Values.

David R Howell1,2,3, Thomas A Buckley4,5, Brant Berkstresser6

  • 11 Sports Medicine Center, Children's Hospital Colorado, Aurora, CO.

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|May 30, 2019
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Summary
This summary is machine-generated.

Athletes with concussion show impaired dual-task gait speed compared to controls. This dual-task gait speed may help detect post-concussion deficits.

Keywords:
gaitlocomotionmild traumatic brain injurypostural balanceyoung adult

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Area of Science:

  • Neuroscience
  • Sports Medicine
  • Biomechanics

Background:

  • Concussion, a traumatic brain injury, can affect motor control.
  • Gait performance is a sensitive indicator of neurological function.
  • Dual-tasking challenges cognitive and motor systems simultaneously.

Purpose of the Study:

  • To determine the prevalence of abnormal single-task and dual-task gait performance in athletes acutely after concussion.
  • To compare gait performance in concussed athletes against healthy controls using normative data.

Main Methods:

  • Instrumented gait analysis was performed on athletes with concussion (n=54) and healthy controls (n=60).
  • Participants completed single-task and dual-task gait evaluations measuring walking speed, cadence, and step length.
  • Statistical analyses compared gait parameters between groups and identified factors associated with impaired performance.

Main Results:

  • A significantly higher percentage of concussed athletes exhibited abnormal dual-task gait speed (56%) compared to controls (30%).
  • Concussion was associated with reduced dual-task gait speed, cadence, and stride length after adjusting for confounding variables.
  • While both single-task and dual-task gait were affected, abnormal dual-task gait speed showed a significant difference between groups.

Conclusions:

  • Dual-task gait speed is a sensitive measure for detecting gait impairments in the acute phase post-concussion.
  • Instrumented gait analysis, particularly dual-task conditions, can aid in identifying athletes requiring further evaluation after concussion.