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August 25, 2014Frontiers in Aging NeuroscienceOpen Access

Utilization of central nervous system resources for preparation and performance of complex walking tasks in older adults

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Why the study?

Does performing complex walking tasks increase prefrontal cortical activity and sympathetic nervous system arousal compared to simple walking in older adults with mild mobility deficits?

Population

16 older men and women with mild mobility deficits, mean age 77.2 ± 5.6 years.

Comparison

Five challenging walking conditions: cognitive… vs Walking at preferred speed without distractions…

Design

Cross-sectional

Authors

DCDavid J. ClarkDRDorian K. RoseSRSarah A. Ring

Discussion

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Overview

Supports elevated cognitive-autonomic demands during complex walking in older adults with mild deficits; hypothesis-generating for targeted interventions, with prospective trials needed.

Structured PICO

Does performing complex walking tasks increase prefrontal cortical activity and sympathetic nervous system arousal compared to simple walking in older adults with mild mobility deficits?

P
Population
16 older men and women with mild mobility deficits, mean age 77.2 ± 5.6 years.
I
Intervention
Five challenging walking conditions: cognitive verbal fluency task, dim lighting, carrying a tray, negotiating obstacles, and wearing a weighted vest.
C
Comparator
Walking at preferred speed without distractions along an unobstructed, well-lit course (control task).
O
Outcome
Prefrontal cortical activity (measured by fNIRS) and sympathetic nervous system arousal (measured by SCL) during preparation and performance phases.surrogate

Complex walking tasks require increased utilization of central nervous system resources (prefrontal activation and sympathetic arousal) in older adults with mild mobility deficits.

Cite This Study

Clark et al. (2014) studied this question.

synapsesocial.com/papers/6a705e22660549caf2c4f1bchttps://doi.org/10.3389/fnagi.2014.00217
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