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Related Experiment Videos

Executive function correlates with walking speed in older persons: the InCHIANTI study.

Alesandro Ble1, Stefano Volpato, Giovanni Zuliani

  • 1Longitudinal Studies Section, Clinical Research Branch, National Institute on Aging, National Institutes of Health, Baltimore, Maryland.

Journal of the American Geriatrics Society
|March 4, 2005
PubMed
Summary

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Executive function, measured by the Trail Making Test (TMT), is linked to complex walking tasks in older adults. Poor TMT performance correlated with slower obstacle course walking speeds, highlighting the importance of executive function for mobility.

Area of Science:

  • Gerontology
  • Neuroscience
  • Kinesiology

Background:

  • Executive function is crucial for complex motor tasks.
  • Age-related cognitive decline can impact mobility in older adults.
  • Understanding the relationship between executive function and lower extremity tasks is vital for maintaining independence.

Purpose of the Study:

  • To investigate the association between executive function and lower extremity tasks with varying attentional demands.
  • To examine this relationship in a large cohort of nondemented older adults.

Main Methods:

  • A cross-sectional, community-based study included 926 participants aged 65+ without cognitive impairment or mobility-limiting conditions.
  • Executive function was assessed using the Trail Making Test (TMT) parts A and B, with a difference score (Delta TMT) indicating performance.

Related Experiment Videos

  • Lower extremity function was measured by walking speed on a 4-m course (usual pace) and a 7-m obstacle course (fast pace).

    • Main Results:

    • No significant association was found between Delta TMT and usual-pace 4-m walking speed.
    • Participants with poorer Delta TMT performance (poor and intermediate) were more likely to have slower speeds on the 7-m obstacle course.
    • This suggests executive function is linked to more demanding mobility tasks.

    Conclusions:

    • Executive function is independently associated with lower extremity tasks requiring high attentional demand in nondemented older adults.
    • These findings underscore the role of cognitive processes in complex motor control and mobility.
    • Interventions targeting executive function may benefit mobility in aging populations.