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Altered dynamic postural control during gait termination following concussion.

Jessie R Oldham1, Barry A Munkasy2, Kelsey M Evans3

  • 1Department of Kinesiology & Applied Physiology, University of Delaware, 541 South College Avenue, Newark, DE 19716, USA.

Gait & Posture
|August 15, 2016
PubMed
Summary

Following concussion, dynamic postural control is impaired. Planned gait termination (GT) effectively measures these deficits by analyzing body sway during stopping, revealing conservative motor strategies post-injury.

Keywords:
Center of pressure displacementsCenter of pressure velocitiesMild traumatic brain injuryMotor control

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Area of Science:

  • Neurology
  • Biomechanics
  • Sports Medicine

Background:

  • Impaired postural control is a primary symptom of concussion.
  • Planned gait termination (GT) is a dynamic task that challenges balance and could identify neurological deficits.
  • Assessing dynamic postural control is crucial for understanding concussion recovery.

Purpose of the Study:

  • To evaluate acute post-concussion dynamic postural control using a planned gait termination (GT) task.
  • To identify specific impairments in postural control following concussion.
  • To validate GT as a measure for post-concussion assessment.

Main Methods:

  • Concussion participants (n=19) and healthy controls (n=19) performed planned GT trials.
  • Measurements included center of pressure (COP) displacement and velocity in mediolateral (ML) and anteroposterior (AP) axes.
  • Data were collected during baseline and Day 1 post-concussion for the concussion group.

Main Results:

  • Significant interactions were found in braking ML and transitional AP displacement and velocity.
  • These findings indicate altered motor control strategies during planned GT post-concussion.
  • The results highlight differences in dynamic postural control between baseline and acute post-concussion states.

Conclusions:

  • Planned gait termination reveals significant dynamic postural control impairments following concussion.
  • A conservative motor control strategy is suggested in individuals post-concussion during GT.
  • Dynamic postural control tasks like GT are valuable for assessing concussion-related deficits.