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Related Experiment Videos

Predictors of hand function in older persons: a two-year longitudinal analysis

S L Hughes1, J Gibbs, D Dunlop

  • 1Multipurpose Arthritis and Musculoskeletal Diseases Center, Northwestern University, Chicago, Illinois.

Journal of the American Geriatrics Society
|February 1, 1995
PubMed
Summary

Upper extremity joint impairment significantly reduces grip strength in older adults. This reduced grip strength, along with other factors, impacts hand function performance over time.

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Area of Science:

  • Gerontology
  • Rehabilitation Science
  • Biomedical Engineering

Background:

  • Hand function is crucial for independence in older adults.
  • Understanding factors affecting hand function is vital for targeted interventions.
  • Previous research suggests a link between joint impairment and hand function, but longitudinal validation is needed.

Purpose of the Study:

  • To validate a hierarchical model of hand function in older persons.
  • To examine the longitudinal relationships between various factors and hand function.
  • To confirm previous cross-sectional findings using longitudinal data.

Main Methods:

  • Longitudinal observational study with 2-year data from 689 older adults (age > 60).
  • Participants included those from Continuing Care Retirement Communities, homebound, and ambulatory settings.

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  • Independent variables: sociodemographics, upper joint impairment, comorbidity, pain, depression, anxiety. Dependent variables: grip strength, timed manual performance.

    • Main Results:

    • Gender and upper extremity joint impairment were the strongest predictors of grip strength.
    • Grip strength, demographics, comorbidity, and psychological status significantly predicted timed manual performance.
    • Generalized estimating equations (GEE) were used to analyze the hierarchical model.

    Conclusions:

    • Longitudinal analyses confirmed that upper extremity joint impairment significantly reduces grip strength.
    • Reduced grip strength, in turn, significantly impacts hand performance on timed tests.
    • The hierarchical model of hand function in older persons was validated.