title: Physical activity levels according to physical and social environmental factors in a sample of adults living in South Brazil.
abstract: OBJECTIVE
  To evaluate the association between the physical and social environment and physical activity (leisure-time and transport-related) in a population-based sample of adults.
  
  
  METHODS
  Cross-sectional study including 972 adults (20-69 years) living in the urban area of Pelotas, Brazil. Physical activity was measured using the long International Physical Activity Questionnaire. Environmental variables were assessed using a modified version of the Neighborhood Environment Walkability Scale.
  
  
  RESULTS
  69.8% (95% CI = 66.9-72.7) and 51.9% (95% CI = 48.8-55.1) of the subjects did not reach 150 min/wk on leisure-time and transport-related physical activity, respectively. Subjects living near green areas were more likely to be active in leisure-time, as well as those who reported to live in safe neighborhoods. Transport-related physical activity was higher among individuals living in areas with garbage accumulation, and was lower among those living in neighborhoods which are difficult to walk or cycle due to traffic. Social support was strongly associated with leisure-time physical activity.
  
  
  CONCLUSIONS
  Safety investments, which are urgently required in Brazil, are likely to have a desirable side effect at increasing physical activity at the population level. Building enjoyable and safe public spaces for physical activity practice must be prioritized.
authors: Post-graduate program in Epidemiology, Federal University of Pelotas, Brazil.
authors: Tales C
authors: TC
authors: Amorim
authors: Mario R
authors: MR
authors: Azevedo
authors: Pedro C
authors: PC
authors: Hallal
mesh_terms: D000328:Adult; D000368:Aged; D001938:Brazil; D003430:Cross-Sectional Studies; D004779:Environment Design; D005260:Female; D006801:Humans; D007899:Leisure Activities; D008297:Male; D008875:Middle Aged; D009043:Motor Activity; D012111:Residence Characteristics; D012449:Safety; D012931:Social Environment; D014186:Transportation; D014504:Urban Health; D016138:Walking; D014887:Weather; D055815:Young Adult