title: Pathways from physical activity to quality of life in older women.
abstract: BACKGROUND
  In spite of consistent evidence to suggest that being more physically active is associated with enhanced quality of life (QOL), there have been remarkably few attempts to determine the possible underlying mechanisms in this relationship.
  
  
  OBJECTIVE
  To prospectively examine the roles played by self-efficacy and physical and mental health status in the physical activity and QOL relationship in older women.
  
  
  METHODS
  Older women (M age = 68.12 years) completed measures of physical activity, self-efficacy relative to balance, mental and physical health status, and global QOL at baseline (N = 249) and 24-month follow-up (N = 217). Demographics and general health information were assessed at baseline. A panel analysis within a covariance modeling framework was used to analyze the data.
  
  
  RESULTS
  Analyses indicated that changes in physical activity over time were associated with residual changes in self-efficacy. Changes in self-efficacy were significantly associated with residual changes in physical and mental health status. Only changes in mental health status were significantly related to residual changes in global QOL.
  
  
  CONCLUSIONS
  Results from this study support the role of self-efficacy in the relationship between physical activity and QOL. Future physical activity promotion programs should include strategies to enhance self-efficacy for physical activity to be most effective for this population.
authors.affiliation: Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, 336 Freer Hall, Urbana, IL 61801, USA. emcauley@uiuc.edu
authors.forename: Edward
authors.initials: E
authors.lastname: McAuley
authors.forename: Shawna E
authors.initials: SE
authors.lastname: Doerksen
authors.forename: Katherine S
authors.initials: KS
authors.lastname: Morris
authors.forename: Robert W
authors.initials: RW
authors.lastname: Motl
authors.forename: Liang
authors.initials: L
authors.lastname: Hu
authors.forename: Thomas R
authors.initials: TR
authors.lastname: Wójcicki
authors.forename: Siobhan M
authors.initials: SM
authors.lastname: White
authors.forename: Karl R
authors.initials: KR
authors.lastname: Rosengren
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000523:psychology*; D015444:Exercise / Q000502:physiology / Q000523:psychology*; D005163:Factor Analysis, Statistical; D005260:Female; D015577:Geriatric Assessment; D006304:Health Status; D006801:Humans; D008137:Longitudinal Studies; D008875:Middle Aged; D015233:Models, Statistical; D010809:Physical Fitness / Q000502:physiology / Q000523:psychology*; D011446:Prospective Studies; D011788:Quality of Life / Q000523:psychology*; D020377:Self Efficacy; D012647:Self-Assessment