title: Prevalence of Physical Activity Is Lower among Individuals with Chronic Disease.
abstract: Physical inactivity is associated with increased risk for morbidity and mortality and contributes to health care costs. Although data supporting the secondary preventive benefits of being physically active continues to grow, there is limited data on the prevalence of sufficient volume of leisure-time physical activity among individuals diagnosed with chronic disease.
  
  
  
  To describe the association between select chronic diseases and the prevalence of sufficient volume of aerobic leisure-time physical activity to achieve substantial health benefits (i.e., ≥150 min·wk) among adults in the United States.
  
  
  
  Self-reported leisure-time physical activity (LTPA) and history of select chronic diseases were obtained from a nationally representative sample of noninstitutionalized civilian adults 18 yr or older in the United States who participated in the 2014 National Health Interview Survey (n = 36,697).
  
  
  
  Among all adults, the prevalence of sufficient volume of aerobic LTPA was 50.1% ± 0.5% (mean ± standard error). This prevalence was inversely related to age and was lower in women (47.1% ± 0.6%) compared with men (53.4% ± 0.6%; P < 0.001). Prevalence of sufficient volume of aerobic LTPA was lower for each chronic disease (prevalence range = 26.1%-48.6%) compared with apparently healthy adults (53.6% ± 0.7%). Relative to no chronic disease, each additional chronic disease was associated with an odds ratio of 0.83 (95% confidence interval, 0.81-0.85; P < 0.001) for sufficient volume of aerobic LTPA.
  
  
  
  The prevalence of sufficient volume of aerobic LTPA to achieve substantial health benefits is inversely related to age and is lower among women and individuals with a chronic disease. Systems to regularly assess physical activity are needed as well as programs to help individuals be more active.
authors.affiliation: 1Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, MI; and 2Department of Clinical and Applied Movement Sciences, University of North Florida, Jacksonville, FL.
authors.forename: Clinton A
authors.initials: CA
authors.lastname: Brawner
authors.forename: James R
authors.initials: JR
authors.lastname: Churilla
authors.forename: Steven J
authors.initials: SJ
authors.lastname: Keteyian
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D002908:Chronic Disease / Q000453:epidemiology*; D003430:Cross-Sectional Studies; D015444:Exercise; D006801:Humans; D007899:Leisure Activities; D008875:Middle Aged; D015995:Prevalence; D012307:Risk Factors; D057566:Self Report; D012737:Sex Factors; D014481:United States / Q000453:epidemiology; D055815:Young Adult