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Lower-Limb Biomechanical Characteristics Associated with Unplanned Gait Termination Under Different Walking Speeds
Published on: August 25, 2020
Impact of impaired executive function on gait stability
Gilles Allali1, Frederic Assal, Reto W Kressig
1Department of Neurology, Geneva University Hospitals, University of Geneva, Geneva, Switzerland. gilles.allali@hcuge.ch
Dementia and Geriatric Cognitive Disorders
|October 15, 2008
Summary
Impaired executive function (IEF) in dementia patients significantly worsens gait stability, especially during dual-tasking scenarios. This highlights the critical role of executive function in maintaining balance and coordinated movement.
Area of Science:
- Neuroscience
- Gerontology
- Biomechanics
Background:
- Executive dysfunction is linked to gait changes, but mechanisms remain unclear.
- Dual-task gait alterations are associated with attention allocation and executive deficits.
- Dementia often involves executive function impairments affecting motor control.
Purpose of the Study:
- To investigate the impact of dysexecutive function on gait stability in dementia patients.
- To analyze gait changes under dual-task conditions in individuals with varying executive function levels.
Main Methods:
- GAITRite system used to measure stride time and variability.
- Comparison of gait parameters during single-task walking and dual-tasking (walking with backward counting).
- Study included subjects with dementia and impaired executive function (IEF), dementia with intact executive function, and non-demented controls.
Main Results:
- Dual-tasking significantly increased stride time and its variability (p < 0.05).
- Impaired executive function (IEF) was associated with greater stride time and variability during single-task walking.
- IEF exacerbated gait changes during dual-tasking compared to controls and demented subjects without IEF.
Conclusions:
- Executive function is crucial for effective dual-tasking performance.
- Executive function plays a significant role in maintaining gait stability, particularly under challenging conditions.
