title: Walking trends among U.S. adults: the Behavioral Risk Factor Surveillance System, 1987-2000.
abstract: OBJECTIVE
  To examine trends in walking among adults in 31 states.
  
  
  METHODS
  Trends by sociodemographic strata were analyzed from respondents who participated in the Behavioral Risk Factor Surveillance System (BRFSS).
  
  
  RESULTS
  The prevalence of walking among men increased 3.8% (95% confidence interval [CI]=2.4-5.2), from 26.2% (95% CI=25.1-25.3) in 1987 to 30.1% (95% CI=29.4-30.8) in 2000. In women, walking increased 6.6% (95% CI=5.4-7.8), from 40.4% (95% CI=-39.4-41.1) to 46.9% (95% CI=46.2-47.6) during the same time period. However, the prevalence of walking three times a week for 30 minutes duration remained constant across all years. The largest increases occurred in minority subpopulations: 8.7% (95% CI=3.2-14.2) in Hispanic women, 8.5% (95% CI=4.4-12.6) non-Hispanic black women, and 7.0% (95% CI=2.3-11.7) in non-Hispanic black men. Walking was the most frequently reported activity among adults who met the national recommendations for regular physical activity (defined as five or more times a week for > or =30 minutes per session).
  
  
  CONCLUSIONS
  Given the acceptability of walking across all sociodemographic subgroups, efforts to increase the frequency of walking could markedly increase the percentage of U.S. adults who engage in regular physical activity, a national priority identified in the Healthy People 2010 objectives for the nation.
authors.affiliation: Epidemic Intelligence Service, Division of Applied Public Health Training, Epidemiology Program Office, Centers for Disease Control and Prevention, 1600 Clifton Road, Atlanta, GA 30333, USA. DHSHPCD@DHS.state.il.us
authors.forename: Mary Ellen
authors.initials: ME
authors.lastname: Simpson
authors.forename: Mary
authors.initials: M
authors.lastname: Serdula
authors.forename: Deborah A
authors.initials: DA
authors.lastname: Galuska
authors.forename: Cathleen
authors.initials: C
authors.lastname: Gillespie
authors.forename: Ralph
authors.initials: R
authors.lastname: Donehoo
authors.forename: Carol
authors.initials: C
authors.lastname: Macera
authors.forename: Karin
authors.initials: K
authors.lastname: Mack
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D040343:Behavioral Risk Factor Surveillance System; D015992:Body Mass Index; D002487:Centers for Disease Control and Prevention, U.S.; D004522:Educational Status; D005006:Ethnicity; D015444:Exercise; D005260:Female; D006293:Health Promotion; D006801:Humans; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D012737:Sex Factors; D012907:Smoking; D013997:Time Factors; D014481:United States; D016138:Walking / Q000706:statistics & numerical data / Q000639:trends*