title: Association Between Body Mass Index, Physical Activity, and Health-Related Quality of Life in Canadian Adults.
abstract: BACKGROUND
  Obesity is associated with impairments in health-related quality of life (HRQL), whereas physical activity (PA) is a promoter of HRQL.
  
  
  OBJECTIVE
  The aim of this study was to investigate the interaction between BMI and PA with HRQL in younger and older Canadian adults.
  
  
  METHODS
  Data from the 2012 annual component of the Canadian Community Health Survey (N = 48,041; ≥ 30 years) were used to capture self-reported body mass index (BMI- kg/m2), PA (kcal/kg/day, KKD), and HRQL. Interactions between PA and age on the BMI and HRQL relationship were assessed using general linear models and logistic regression.
  
  
  RESULTS
  Those younger (younger: μ = 0.79 ± 0.02; older: μ = 0.70 ± 0.02) and more active (active: μ = 0.82 ± 0.02; moderately active: μ = 0.77 ± 0.03; inactive: μ = 0.73 ± 0.01) reported higher HRQL. Older inactive underweight, normal weight, and overweight adults have lower odds of high HRQL.
  
  
  CONCLUSIONS
  PA was associated with higher HRQL in younger adults. In older adults, BMI and PA influenced HRQL.
authors.affiliation: School of Kinesiology and Health Science, York University, Toronto, Ontario, Canada.
authors.forename: Alina
authors.initials: A
authors.lastname: Cohen
authors.forename: Joseph
authors.initials: J
authors.lastname: Baker
authors.forename: Chris I
authors.initials: CI
authors.lastname: Ardern
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D015992:Body Mass Index; D002170:Canada; D005260:Female; D006305:Health Status Indicators; D006306:Health Surveys; D006801:Humans; D008297:Male; D008875:Middle Aged; D009043:Motor Activity; D011788:Quality of Life; D057566:Self Report