title: Ten-year trends in total physical activity practice in Brazilian adults: 2002-2012.
abstract: BACKGROUND
  One-third of adults worldwide are physically inactive causing over 5.3 million deaths annually. Despite a growing focus on physical activity and health, population-based data on physical activity trends in low- and middle-income countries are still limited. To help fill the gap, this study provides trend data over a 10-year period in Pelotas, a southern Brazilian city.
  
  
  METHODS
  The short version of the International Physical Activity Questionnaire was used to assess the prevalence of physical inactivity in 2002 (n = 3119), 2007 (n = 2969), and 2012 (n = 2868). Levels of inactivity and trends were assessed according to sex, age, schooling, and socioeconomic position (SEP).
  
  
  RESULTS
  The prevalence of physical inactivity rose from 41.1% (95% CI: 37.4-44.9) in 2002 and 52.0% (95% CI: 49.1-53.8) in 2007 to 54.4% (95% CI: 51.8-56.9) in 2012 (P < .001). Physical inactivity significantly increased in all subgroups except in the highest SEP and 70+ year age subgroups.
  
  
  CONCLUSIONS
  After a sharp increase in the prevalence of physical inactivity from 2002-2007, levels plateaued from 2007-2012. However, it is important to stress that current levels are still unacceptably high, and that efforts must be intensified to reverse the trend.
authors.affiliation: Post-graduate Program in Epidemiology, Federal University of Pelotas, Brazil.
authors.forename: Pedro C
authors.initials: PC
authors.lastname: Hallal
authors.forename: Kelly
authors.initials: K
authors.lastname: Cordeira
authors.forename: Alan G
authors.initials: AG
authors.lastname: Knuth
authors.forename: Grégore Iven
authors.initials: GI
authors.lastname: Mielke
authors.forename: Cesar G
authors.initials: CG
authors.lastname: Victora
mesh_terms: D000328:Adult; D000368:Aged; D001938:Brazil / Q000453:epidemiology; D003430:Cross-Sectional Studies; D004032:Diet; D005260:Female; D006801:Humans; D007182:Income; D008019:Life Style; D008297:Male; D008875:Middle Aged; D009043:Motor Activity; D015995:Prevalence; D012923:Social Class; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires; D055815:Young Adult