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Exploring cognitive motor interference in multiple sclerosis by the visual Stroop test.

Giancarlo Coghe1, Giuseppina Pilloni2, Erica Zucca1

  • 1Multiple Sclerosis Center, Department of Medical Science and Public Health, University of Cagliari, Cagliari, Italy.

Multiple Sclerosis and Related Disorders
|March 5, 2018
PubMed
Summary
This summary is machine-generated.

Individuals with multiple sclerosis (MS) experience greater walking impairment when performing cognitive tasks. This study standardized a dual task method to measure this cognitive motor interference in MS patients compared to healthy controls.

Keywords:
Cognitive motor interferenceDual taskGaitMultiple sclerosisStroop colour word testValidation

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Area of Science:

  • Neuroscience
  • Rehabilitation Science
  • Biomedical Engineering

Background:

  • Dual task paradigms assess real-world walking impairments in neurological conditions.
  • Existing dual task methods lack standardization and validation for multiple sclerosis (MS).
  • Cognitive motor interference significantly impacts daily functioning for individuals with MS.

Purpose of the Study:

  • To establish a standardized instrument for evaluating cognitive motor interference in MS.
  • To utilize the Stroop Colour Word Test (SCWT) as a validated cognitive task.
  • To compare cognitive motor interference in MS patients and healthy controls (HC).

Main Methods:

  • 3D gait analysis was performed on MS patients and HC under a dual task protocol.
  • The SCWT was employed as the cognitive task during gait analysis.
  • Dual Task Cost (DTC) quantified gait performance impairment, analyzed via MANOVA for spatiotemporal parameters.

Main Results:

  • MS patients exhibited significantly higher DTC for gait speed, cadence, and stride time.
  • Increased DTC was observed in MS for stance and swing phase durations.
  • These findings highlight a pronounced motor cost associated with cognitive tasks in MS.

Conclusions:

  • Dual Task Cost (DTC) is evident in both MS patients and HC, but is significantly elevated in MS.
  • The study provides a validated framework for future research on cognitive motor interference in MS.
  • Standardized dual task assessment is crucial for understanding and managing MS-related gait disturbances.