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Updated: Feb 14, 2026
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Motor Dual-Tasks for Gait Analysis and Evaluation in Post-Stroke Patients
Published on: March 11, 2021
2.9K
Cognitive-motor dual-task interference modulates mediolateral dynamic stability during gait in post-stroke
R Tisserand1, S Armand2, G Allali3
1Univ. Lyon, Université Claude Bernard Lyon 1, IFSTTAR, UMR_T9406, LBMC, 69622 Lyon, France; School of Kinesiology, University of British Columbia, Vancouver, British Columbia, Canada.
Human Movement Science
|February 16, 2018
Summary
Post-stroke individuals exhibit impaired dynamic balance and gait. During dual-tasking, they prioritize stability over cognitive tasks, highlighting the need for integrated rehabilitation to reduce fall risk.
Area of Science:
- Neurorehabilitation
- Biomechanics
- Human Movement Science
Background:
- Gait asymmetry and dynamic balance deficits in post-stroke individuals elevate fall risk.
- Dual-tasking (walking while performing a cognitive task) further challenges balance control in this population.
Purpose of the Study:
- To investigate mediolateral dynamic stability during single-task and dual-task walking in post-stroke individuals.
- To compare stability strategies between post-stroke participants and healthy controls.
Main Methods:
- Twenty-two community-dwelling participants (12 post-stroke, 10 controls) walked under single-task and four dual-task conditions.
- Extrapolated center of mass, margin of stability, and base of support were analyzed using 35 marker trajectories.
- Mediolateral dynamic stability was assessed in the frontal plane.
Main Results:
- Post-stroke participants showed larger margin of stability and base of support than controls during single-task walking.
- Dual-tasking did not significantly affect stability between groups but altered post-stroke individuals' strategies, reducing cognitive performance.
- Post-stroke participants prioritized dynamic stability over cognitive function during dual-tasking.
Conclusions:
- Post-stroke individuals enhance frontal plane dynamic stability by widening their base of support and relying on the non-paretic limb during single-task walking.
- Under dual-task conditions, post-stroke individuals prioritize stability, indicating a compensatory strategy to ensure safe locomotion.
- Rehabilitation programs should incorporate dynamic balance and dual-task training to mitigate fall risk in chronic stroke survivors.
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