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Related Experiment Videos

Walking trajectory in neglect patients.

Rients B Huitema1, Wiebo H Brouwer, At L Hof

  • 1Centre for Rehabilitation, University Hospital Groningen, P.O. Box 30.001, 9700 RB Groningen, The Netherlands. r.b.huitema@ppsw.rug.nl

Gait & Posture
|January 10, 2006
PubMed
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Stroke patients with unilateral spatial neglect exhibit altered walking trajectories. Their deviation direction depends on walking ability, with limited ability causing ipsilesional deviation due to task prioritization shifts.

Area of Science:

  • Neuroscience
  • Rehabilitation Medicine
  • Biomechanics

Background:

  • Unilateral spatial neglect (USN) is a common consequence of stroke, often manifesting as altered walking patterns.
  • Previous studies on the direction of lateral deviation in USN patients' walking trajectories have yielded contradictory results.

Purpose of the Study:

  • To investigate the factors influencing the lateral deviation in the walking trajectory of stroke patients with USN.
  • To clarify the relationship between walking ability, neglect severity, and trajectory deviation in USN.

Main Methods:

  • A 2D ultrasonic positioning system was used to record walking trajectories of right hemisphere stroke patients (with and without neglect), left hemisphere stroke patients, and healthy controls.
  • Assessment of patients' walking recovery and presence of neglect was performed.

Related Experiment Videos

Main Results:

  • Neglect patients demonstrated significantly greater lateral deviation compared to non-neglect stroke patients and controls.
  • USN patients with good walking ability deviated towards the contralesional side.
  • USN patients with limited walking ability deviated towards the ipsilesional side.
  • No correlation was found between neglect severity and the degree of lateral deviation within the neglect group.

Conclusions:

  • Walking ability significantly influences the direction of lateral deviation in USN patients' walking trajectories.
  • Limited walking ability in USN patients may lead to a shift in task priority, prioritizing walking over heading control, thus altering trajectory.
  • These findings may reconcile conflicting results in previous research on USN and walking deviations.