title: The effects of a lifestyle intervention on leisure-time sedentary behaviors in adults at risk: the Hoorn Prevention Study, a randomized controlled trial.
abstract: OBJECTIVE
  This study set out to assess the short- and long-term effects of a primary care-based lifestyle intervention on different domains of leisure-time sedentary behaviors in Dutch adults at risk of type 2 diabetes and cardiovascular diseases.
  
  
  METHODS
  Between 2007 and 2009, adults (n=622) at risk were randomly assigned to a counseling intervention aimed at adopting healthy lifestyle behaviors, or a control group that only received health brochures. Follow-up measures were done after 6, 12 and 24months. Linear regression analysis was used to examine between-group differences in self-report minutes per day sedentary behaviors, adjusted for baseline values. Stratified analyses were performed for sex and educational attainment.
  
  
  RESULTS
  Seventy-nine percent (n=490) of participants completed the last follow-up. Mean baseline sedentary behaviors were 254.6min per day (SD=136.2). Intention-to-treat analyses showed no significant differences in overall or domain-specific sedentary behaviors between the two groups at follow-up. Stratified analyses for educational attainment revealed a small and temporary between-group difference in favor of the intervention group, in those who finished secondary school.
  
  
  CONCLUSIONS
  A primary care-based general lifestyle intervention was not more effective in reducing leisure-time sedentary behaviors than providing brochures in adults at risk for chronic diseases.
authors.affiliation: Department of General Practice and Elderly Care Medicine and the EMGO Institute for Health and Care Research, VU University Medical Center, van der Boechorststraat 7, 1081 BT Amsterdam, The Netherlands. Electronic address: j.lakerveld@vumc.nl.
authors.forename: Jeroen
authors.initials: J
authors.lastname: Lakerveld
authors.forename: Sandra D M
authors.initials: SD
authors.lastname: Bot
authors.forename: Hidde P
authors.initials: HP
authors.lastname: van der Ploeg
authors.forename: Giel
authors.initials: G
authors.lastname: Nijpels
mesh_terms: D000328:Adult; D002318:Cardiovascular Diseases / Q000517:prevention & control*; D003376:Counseling / Q000379:methods; D003924:Diabetes Mellitus, Type 2 / Q000517:prevention & control*; D005260:Female; D006801:Humans; D007899:Leisure Activities / Q000523:psychology; D008297:Male; D008875:Middle Aged; D011320:Primary Health Care / Q000379:methods; D012307:Risk Factors; D040242:Risk Reduction Behavior; D057185:Sedentary Behavior
keywords: CVD; Lifestyle; Primary prevention; Risk factors; Sedentary behavior; T2DM