The relationship between body weight, frailty, and the disablement process.

TitleThe relationship between body weight, frailty, and the disablement process.
Publication TypeJournal Article
Year of Publication2012
AuthorsBowen, ME
JournalJ Gerontol B Psychol Sci Soc Sci
Volume67
Issue5
Pagination618-26
Date Published2012 Sep
ISSN Number1758-5368
KeywordsActivities of Daily Living, Aged, Body Weight, Cross-Sectional Studies, Disability Evaluation, Disabled Persons, Female, Frail Elderly, Geriatric Assessment, Health Behavior, Health Surveys, Humans, Life Style, Longitudinal Studies, Male, Middle Aged, Overweight, Physical Fitness, Prospective Studies, sarcopenia, Socioeconomic factors, Thinness, United States
Abstract

OBJECTIVES: To prospectively examine the relationship between body weight, frailty, and the disablement process.

METHOD: Longitudinal data from the Health and Retirement Study (1998-2006) were used to examine the relationship between being underweight, overweight, or obese (compared with normal weight) and the onset and progression of functional limitations and disabilities in instrumental activities of daily living (IADL) and activities of daily living (ADL) among a nationally representative sample of community-dwelling older adults (aged 50 and older) with characteristics of frailty (n= 11,491). Nonlinear multilevel models additionally adjusted for demographic characteristics and intra-individual changes in body weight, socioeconomic status, health behaviors, and health conditions over the course of 8 years.

RESULTS: Compared with their nonfrail normal weight counterparts, prefrail obese respondents have a 16% (p ≤ 0.001) reduction in the expected functional limitations rate and frail overweight and obese respondents have a 10% (p ≤ 0.01) and 36% (p ≤ 0.001) reduction in the expected functional limitations rate, respectively. In addition, frail obese respondents have a 27% (p ≤ 0.05) reduction in the expected ADL disability rate.

DISCUSSION: This study's findings suggest that underweight, overweight, and obese status differentially affect the risk for functional limitations and disabilities in IADL and ADL. Among prefrail and frail adults, some excess body weight in later life may be beneficial, reducing the rate of functional limitations and disability.

DOI10.1093/geronb/gbs067
User Guide Notes

http://www.ncbi.nlm.nih.gov/pubmed/22967933?dopt=Abstract

Endnote Keywords

Weight/Frailty/Disability/Disability/Older people/Health behavior/Socioeconomic factors/activities Of Daily Living/ADL and IADL Impairments

Endnote ID

69624

Alternate JournalJ Gerontol B Psychol Sci Soc Sci
Citation Key7751
PubMed ID22967933
PubMed Central IDPMC3536552
Grant ListU01AG009740 / AG / NIA NIH HHS / United States