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Motor Dual-Tasks for Gait Analysis and Evaluation in Post-Stroke Patients
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Effect of individualized cognitive and postural task difficulty levels on postural control during dual task

Zeren G Gursoy1, Ugur Yilmaz2, Huseyin Celik2

  • 1Department of Physical Education and Sports, Faculty of Education, Middle East Technical University, Ankara, Turkey.

Gait & Posture
|May 9, 2022
PubMed
Summary

Individualized cognitive and motor task difficulty impacts postural sway. Higher task difficulty, especially in challenging balance tasks, leads to more significant changes in sway features like velocity and range.

Keywords:
Cognitive taskDual taskHuman upright posturePostural controlPostural swayVoluntary sway

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Area of Science:

  • Biomechanics
  • Cognitive Neuroscience
  • Human Motor Control

Background:

  • Dual task interference varies individually.
  • Previous studies lacked individualized task difficulty.
  • This study addresses this gap by individualizing task difficulty.

Purpose of the Study:

  • To investigate how individualized cognitive and postural task difficulty affects postural sway.
  • To examine dual task interference under personalized difficulty levels.

Main Methods:

  • 20 healthy young adults participated.
  • Individualized cognitive task difficulty (No-, Medium-, High) was set.
  • Participants performed quiet stance and voluntary sway tasks with/without cognitive tasks.

Main Results:

  • Postural sway features were significantly affected by individualized task difficulty.
  • Increased difficulty led to greater reductions in sway features (COP velocity, AP range) during voluntary sway.
  • Dual task effects were more pronounced with higher balance demands.

Conclusions:

  • Task-specific changes in postural sway were observed.
  • Individualized difficulty enhances the understanding of dual task effects on balance.
  • The interplay between cognitive load and motor task complexity influences postural control.