Construct validity and physical performance of older adults in different hierarchical physical-disability levels

Ching Yi Wang, Ching Fan Sheu, Elizabeth Protas

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The purpose of this study was to test the construct validity of the hierarchical levels of self-reported physical disability using health-related variables and physical-performance tests as criteria. The study participants were a community-based sample of 368 adults age 60 years or older. These older adults were grouped into 4 levels according to their physical-disability status (able, mildly disabled, moderately disabled, and severely disabled groups) based on their self-reported measures on the mobility, instrumented activity of daily living (IADL), and activities of daily living (ADL) domains. Health-related variables (body-mass index, number of comorbidities, depression status, mental status, and self-perceived health status) and eight performance-based tests demonstrated significant group differences. Self-reported measures of physical disability can be used to categorize older adults into different stages of physical functional decline.

Original languageEnglish (US)
Pages (from-to)75-89
Number of pages15
JournalJournal of Aging and Physical Activity
Volume15
Issue number1
StatePublished - Jan 2007
Externally publishedYes

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Activities of Daily Living
Health
Health Status
Comorbidity
Body Mass Index

Keywords

  • Aging
  • Mobility limitation
  • Psychometrics
  • Screening community

ASJC Scopus subject areas

  • Geriatrics and Gerontology
  • Rehabilitation
  • Physical Therapy, Sports Therapy and Rehabilitation
  • Orthopedics and Sports Medicine

Cite this

Construct validity and physical performance of older adults in different hierarchical physical-disability levels. / Wang, Ching Yi; Sheu, Ching Fan; Protas, Elizabeth.

In: Journal of Aging and Physical Activity, Vol. 15, No. 1, 01.2007, p. 75-89.

Research output: Contribution to journalArticle

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