Objective measurement of gait parameters in healthy and cognitively impaired elderly using the dual-task paradigm

Objectives The present study explores the differences in gait parameters in elderly subjects with or without cognitive impairment measured by means of ambulatory actigraphy while performing a single and a dual task. Methods Sixty-nine participants of which 23 individuals were diagnosed with Alzheime...

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Bibliographic Details
Published in:Aging clinical and experimental research 2017-12, Vol.29 (6), p.1181-1189
Main Authors: König, Alexandra, Klaming, Laura, Pijl, Marten, Demeurraux, Alexandre, David, Renaud, Robert, Philippe
Format: Article
Language:English
Subjects:
Accelerometry - methods
Aged
Aged, 80 and over
Alzheimer Disease - physiopathology
Alzheimer Disease - psychology
Case-Control Studies
Cognitive ability
Cognitive Dysfunction - physiopathology
Cognitive Dysfunction - psychology
Computation and Language
Computer Science
Dementia
Disease Progression
Female
Gait
Geriatrics/Gerontology
Health Status
Humans
Male
Medicine
Medicine & Public Health
Mental Status and Dementia Tests
Original
Original Article
Walking Speed - physiology
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Summary:Objectives The present study explores the differences in gait parameters in elderly subjects with or without cognitive impairment measured by means of ambulatory actigraphy while performing a single and a dual task. Methods Sixty-nine participants of which 23 individuals were diagnosed with Alzheimer’s disease (AD), 24 individuals with mild cognitive impairment (MCI), and 22 healthy controls performed a single and dual walking task while wearing a wrist-worn accelerometer. Objective measures of gait features such as walking speed, cadence (i.e., number of steps per minute), and step variance (i.e., variance in time between two consecutive steps) were derived and analyzed. Results While differences in several gait parameters, namely walking speed, were found between MCI and AD patients, no differences between healthy elderly and MCI patients were found. Conclusion Walking speed seems to be a gait-related feature that differs significantly between MCI and AD patients and thus could be used as an additional measurement in clinical assessment. However, differences in gait may not be salient enough in the early stages of dementia to be detected by actigraphy. More research comparing different methods to measure gait in early stages of dementia under different dual task conditions is neccessary.
ISSN:1720-8319
1594-0667
1720-8319
DOI:10.1007/s40520-016-0703-6