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Related Experiment Video

Updated: Dec 22, 2025

Motor Dual-Tasks for Gait Analysis and Evaluation in Post-Stroke Patients

Motor Dual-Tasks for Gait Analysis and Evaluation in Post-Stroke Patients

Published on: March 11, 2021

The Effect Of Visual Dual-Tasking Interference On Walking In Healthy Young Adults.

Nodoka Kimura¹, Robert van Deursen²

¹Center for Information and Neural Networks (CiNet), National Institute of Information and Communications Technology (NICT), 1-4 Yamadaoka, Suita, Osaka 565-0871, Japan.

|May 4, 2020

Summary

This summary is machine-generated.

Visual dual-tasking, like reading while walking, significantly impacts gait stability. Reading text while walking increases walking speed but reduces step length variability and increases mediolateral center of mass displacement.

Keywords:

Center of mass Gait stability Trunk movement Virtual reality Visual Dual-task

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Area of Science:

Biomechanics
Human locomotion
Virtual reality applications

Background:

Stable ambulation is crucial for daily activities, often involving visual dual-tasking.
Gait analysis in virtual environments offers insights into dual-task walking performance.

Purpose of the Study:

To investigate how visual dual-tasking, including cognitive load from reading and altered optical flow, affects walking speed and stability in healthy adults.
To examine the relationship between mediolateral center of mass (CoM) displacement and trunk movement during dual-task walking.

Main Methods:

Nineteen healthy young adults walked on a treadmill in a virtual environment under single-task, scrolling lines, and reading text conditions.
Three-dimensional motion analysis captured gait velocity, step length, mediolateral CoM displacement, and thorax inclination.

Main Results:

Visual dual-tasking increased walking speed and step length compared to single-tasking.
Reading text while walking significantly reduced step length variability and increased mediolateral CoM displacement.
Mediolateral CoM displacement was linked to mediolateral thorax inclination.

Conclusions:

Visual dual-tasking, through altered optical flow and cognitive load, significantly affects gait stability.
Reading text while walking impacts foot placement, trunk posture, and CoM displacement, highlighting reduced stability.
This virtual reality paradigm is valuable for assessing walking stability in clinical and daily settings.