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Using a Real-Time Locating System to Measure Walking Activity Associated with Wandering Behaviors Among Institutionalized Older Adults
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Relationship between self-reported function and disability and balance performance measures in the elderly.

Itshak Melzer1, Ilan Kurz, Orly Sarid

  • 1Department of Physical Therapy, Recanati School for Community Health Professions, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel. itzikm@bgu.ac.il

Journal of Rehabilitation Research and Development
|October 19, 2007
PubMed
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The Hebrew version of the Late-Life Function and Disability Instrument (LLFDI) reliably measures function and disability in older adults. This validated tool is suitable for research assessing functional status in geriatric populations.

Area of Science:

  • Gerontology
  • Rehabilitation Medicine
  • Psychometrics

Background:

  • Assessing functional status and disability in older adults is crucial for effective geriatric care and research.
  • The Late-Life Function and Disability Instrument (LLFDI) is a widely used tool, but its Hebrew version required validation.
  • Establishing reliability and validity is essential for accurate measurement of health outcomes in aging populations.

Purpose of the Study:

  • To evaluate the test-retest reliability and construct validity of the Hebrew version of the LLFDI.
  • To assess the known-groups validity by comparing functional scores between cane and non-cane users.
  • To determine if the Hebrew LLFDI is a suitable instrument for measuring function and disability in older adults.

Main Methods:

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  • Recruited 55 older adults (mean age 79.7 years) for the study.
  • Calculated test-retest reliability using intraclass correlation coefficients (ICCs).
  • Determined construct validity through partial correlations with the Berg Balance Scale (BBS) and Timed Up and Go (TUG) test, and examined known-groups validity.

    • Main Results:

    • Test-retest reliability for the function component ranged from good to excellent (ICCs 0.77-0.90).
    • Disability component reliability was fair to good (ICCs 0.63-0.83), with one subscale showing lower reliability (0.46).
    • Significant associations were found between LLFDI function scores and BBS/TUG, and cane users demonstrated lower function.

    Conclusions:

    • The Hebrew version of the LLFDI demonstrates good reliability and validity for assessing function and disability in older adults.
    • The instrument is recommended for use in research focusing on geriatric functional outcomes.
    • This validated Hebrew LLFDI facilitates research and clinical assessment in aging populations within Hebrew-speaking contexts.