title: Obesity's effects on the onset of functional impairment among older adults.
abstract: OBJECTIVE
  This study has two purposes. First, it determines if there is a relationship between body weight and the onset of functional impairment across time among this sample of older adults. More specifically, it examines if obese older adults are more likely to experience the onset of functional impairment. Second, it explores how health behaviors and health conditions may explain the relationship between body weight and the onset of functional impairment.
  
  
  METHODS
  With the use of longitudinal data from the Asset and Health Dynamics Among the Oldest Old (AHEAD) survey, logistic regression models on the onset of functional impairment over two time points are estimated for older adults.
  
  
  RESULTS
  Results indicate that body weight (more specifically being overweight or obese) makes one more likely to experience the onset of functional impairment across various domains of impairment. Outside of health behaviors and health conditions, obesity has an independent effect on the onset of impairment in strength, lower body mobility, and activities of daily living.
  
  
  CONCLUSIONS
  Study findings support the active treatment of weight problems in older adults. Future directions for research in this area should address effective weight management interventions targeting issues related to older individuals.
authors.affiliation: The Institute for Social Research, University of Michigan, 426 Thompson Street, Box 1248, Room 2044, Ann Arbor, MI 48106-1248, USA. kristirj@isr.umich.edu
authors.forename: Kristi Rahrig
authors.initials: KR
authors.lastname: Jenkins
mesh_terms: D000203:Activities of Daily Living; D000368:Aged; D000369:Aged, 80 and over; D001835:Body Weight; D002908:Chronic Disease / Q000453:epidemiology; D006233:Persons with Disabilities / Q000706:statistics & numerical data*; D015444:Exercise; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D009043:Motor Activity / Q000502:physiology; D009068:Movement / Q000502:physiology; D009765:Obesity / Q000150:complications / Q000453:epidemiology / Q000503:physiopathology*; D012309:Risk-Taking; D014481:United States / Q000453:epidemiology