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Mov Disord. 2013 Sep 15;28(11):1520-33. doi: 10.1002/mds.25674.

Cognitive contributions to gait and falls: evidence and implications.

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  • 1Isituto di Diagnosi e Cura Hermitage-Capodimonte, Naples, Italy; Neurodegenerative Diseases Center, Department of Medicine and Surgery, University of Salerno, Salerno, Italy.

Abstract

Dementia and gait impairments often coexist in older adults and patients with neurodegenerative disease. Both conditions represent independent risk factors for falls. The relationship between cognitive function and gait has recently received increasing attention. Gait is no longer considered merely automated motor activity but rather an activity that requires executive function and attention as well as judgment of external and internal cues. In this review, we intend to: (1) summarize and synthesize the experimental, neuropsychological, and neuroimaging evidence that supports the role played by cognition in the control of gait; and (2) briefly discuss the implications deriving from the interplay between cognition and gait. In recent years, the dual task paradigm has been widely used as an experimental method to explore the interplay between gait and cognition. Several neuropsychological investigations have also demonstrated that walking relies on the use of several cognitive domains, including executive-attentional function, visuospatial abilities, and even memory resources. A number of morphological and functional neuroimaging studies have offered additional evidence supporting the relationship between gait and cognitive resources. Based on the findings from 3 lines of studies, it appears that a growing body of evidence indicates a pivotal role of cognition in gait control and fall prevention. The interplay between higher-order neural function and gait has a number of clinical implications, ranging from integrated assessment tools to possible innovative lines of interventions, including cognitive therapy for falls prevention on one hand and walking program for reducing dementia risk on the other.

© 2013 Movement Disorder Society.

KEYWORDS:

aging; cognitive function; executive function; falls; gait; neuroimaging

PMID:
24132840
[PubMed - indexed for MEDLINE]
PMCID:
PMC4119872
Free PMC Article
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