title: Translating physical activity interventions for breast cancer survivors into practice: an evaluation of randomized controlled trials.
abstract: BACKGROUND
  Although physical activity (PA) interventions have been effective for improving health outcomes in breast cancer survivors, little is known relative to their potential for translation into practice.
  
  
  OBJECTIVE
  This review was designed to provide a quantitative estimate of the reporting of both internal and external validity in recent studies of PA in breast cancer survivors (BCS).
  
  
  METHODS
  The Reach, Efficacy/Effectiveness, Adoption, Implementation, and Maintenance (RE-AIM) framework was utilized to assess the reporting of internal and external validity in 25 randomized controlled trials (RCTs) of PA and BCS published between 1998 and 2008. Each trial was evaluated relative to the degree it met criteria for each of the above dimensions.
  
  
  RESULTS
  The majority of studies in this review reported dimensions reflecting internal validity. The overall level of detail relative to external validity of PA interventions was rarely reported, limiting the generalizability of study findings.
  
  
  CONCLUSIONS
  As with many RCTs of health behavior change, detail relative to contextual elements of published PA interventions in BCS is limited. It is recommended that future physical activity interventions in BCS be designed to facilitate scalable and sustainable interventions for improving health outcomes in this population.
authors.affiliation: Department of Kinesiology and Community Health, University of Illinois, 336 Freer Hall, 906 S. Goodwin Ave, Urbana, IL 61801, USA. smwhite1@illinois.edu
authors.forename: Siobhan M
authors.initials: SM
authors.lastname: White
authors.forename: Edward
authors.initials: E
authors.lastname: McAuley
authors.forename: Paul A
authors.initials: PA
authors.lastname: Estabrooks
authors.forename: Kerry S
authors.initials: KS
authors.lastname: Courneya
mesh_terms: D001943:Breast Neoplasms / Q000534:rehabilitation*; D005260:Female; D015438:Health Behavior; D006801:Humans; D009043:Motor Activity; D016032:Randomized Controlled Trials as Topic; D017741:Survivors