title: Physical activity and function in older adults: theory of planned behavior.
abstract: OBJECTIVE
  To assess the theory of planned behavior (TPB) and TPB with functional ability to explain intention and self-reported physical activity (PA) behavior of older adults.
  
  
  METHODS
  A survey was mailed to 2056 retirees from a large Midwestern university.
  
  
  RESULTS
  Structural equation modeling revealed that the TPB plus functional ability explained an additional 11% variance than the TPB alone in older adult PA and functional ability was the best predictor of PA (beta = .53, P<.05).
  
  
  CONCLUSIONS
  Functional ability appears to be an important predictor of PA behavior and should be included when designing PA programs for older adults.
authors.affiliation: School of Nursing, University of Michigan, Ann Arbor, MI 48109-0482, USA. kagreteb@umich.edu
authors.forename: Kimberlee A
authors.initials: KA
authors.lastname: Gretebeck
authors.forename: David R
authors.initials: DR
authors.lastname: Black
authors.forename: Carolyn L
authors.initials: CL
authors.lastname: Blue
authors.forename: Lawrence T
authors.initials: LT
authors.lastname: Glickman
authors.forename: Sally A
authors.initials: SA
authors.lastname: Huston
authors.forename: Randall J
authors.initials: RJ
authors.lastname: Gretebeck
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003430:Cross-Sectional Studies; D015444:Exercise; D005260:Female; D015438:Health Behavior; D006801:Humans; D033182:Intention; D008297:Male; D015146:Midwestern United States; D008962:Models, Theoretical; D009042:Motivation