title: A randomized prospective trial of a worksite intervention program to increase physical activity.
abstract: OBJECTIVE
  To evaluate the effectiveness of addressing multiple barriers to physical activity (PA) using interventions at the workplace.
  
  
  METHODS
  The Physical Activity and Lifestyle Study used a randomized controlled trial in which 60 university departments were randomized into five groups.
  
  
  METHODS
  Large Southeastern university.
  
  
  METHODS
  Physically inactive nonfaculty employees in the participating departments (n = 410) were interviewed five times over 9 months, with 82% completing all surveys.
  
  
  METHODS
  Departments were randomly assigned to (1) control, (2) gym membership, (3) gym + PA education, (4) gym + time during the workday, and (5) gym + education + time.
  
  
  METHODS
  PA intensity and quantity were measured using the 7-day Physical Activity Recall instrument, with PA then classified as the number of days meeting Centers for Disease Control and Prevention guidelines.
  
  
  METHODS
  The outcome was modeled with generalized linear mixed model methodology.
  
  
  RESULTS
  There was no significant improvement when a group received gym alone compared to the control (Rate Ratio [RR]) 1.22 [.90, 1.67]). However, gym + education, gym + time, and gym + education + time were significantly better than the control (RR 1.51 [1.15, 1.98], RR 1.46 [1.13, 1.88], RR 1.28 [1.01, 1.62]), with improvements sustained over the 9 months.
  
  
  CONCLUSIONS
  Among sedentary adults who had access to indoor exercise facilities, addressing environmental and cognitive barriers simultaneously (i.e., time and education) did not encourage more activity than addressing either barrier alone.
authors.affiliation: Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA.agazma@sph.emory.edu
authors.forename: Julie A
authors.initials: JA
authors.lastname: Gazmararian
authors.forename: Lisa
authors.initials: L
authors.lastname: Elon
authors.forename: Kimberly
authors.initials: K
authors.lastname: Newsome
authors.forename: Laura
authors.initials: L
authors.lastname: Schild
authors.forename: Kara L
authors.initials: KL
authors.lastname: Jacobson
mesh_terms: D000328:Adult; D000368:Aged; D016000:Cluster Analysis; D005260:Female; D020446:Fitness Centers; D005845:Georgia; D006293:Health Promotion / Q000458:organization & administration*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009043:Motor Activity; D016272:Occupational Health; D036301:Qualitative Research; D014495:Universities; D055815:Young Adult