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Related Experiment Videos

Increased walking variability in elderly persons with congestive heart failure

J M Hausdorff1, D E Forman, Z Ladin

  • 1Charles A. Dana Research Institute, Beth Israel Hospital, Boston, Massachusetts.

Journal of the American Geriatrics Society
|October 1, 1994
PubMed
Summary

Elderly individuals with congestive heart failure exhibit significantly increased walking variability compared to healthy older adults and young adults. This indicates a reduced ability to maintain a steady walking pace due to heart failure.

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Area of Science:

  • Gerontology
  • Cardiology
  • Biomechanics

Background:

  • Congestive heart failure (CHF) is a prevalent condition in the elderly population.
  • Assessing functional mobility, such as walking, is crucial for evaluating the impact of CHF.
  • Self-determined walking pace is a common measure of daily ambulation.

Purpose of the Study:

  • To investigate the effects of congestive heart failure on gait stability in elderly individuals.
  • To compare walking variability in elderly individuals with CHF, elderly controls, and young healthy adults.

Main Methods:

  • Participants included elderly individuals with CHF (NYHA class I or II), elderly controls, and young healthy adults.
  • Subjects walked for 8 minutes at a self-selected pace on level ground.
Keywords:
NASA Discipline CardiopulmonaryNon-NASA Center

Related Experiment Videos

  • Step rate and step rate variability were measured using footswitches.

    • Main Results:

    • Elderly individuals with CHF demonstrated significantly higher step rate variability than both elderly controls and young adults.
    • Elderly controls showed intermediate walking variability compared to the other two groups.
    • Statistical analysis confirmed significant differences between all three groups, with no overlap in confidence intervals for key variability measures.

    Conclusions:

    • Congestive heart failure significantly impairs gait stability and the ability to maintain a steady walking pace in the elderly.
    • Increased walking variability in CHF patients may have implications for fall risk and overall mobility.
    • Gait variability analysis can serve as a sensitive indicator of functional decline in elderly individuals with CHF.