title: Peers promoting physical activity among breast cancer survivors: A randomized controlled trial.
abstract: OBJECTIVE
  Although studies have shown that physical activity (PA) can reduce some treatment-related side effects of breast cancer, there is a need to offer PA programs outside of research settings to reach more cancer survivors. We partnered with the American Cancer Society's Reach to Recovery (RTR) program to train their volunteers (breast cancer survivors) to deliver a 12-week PA intervention to other breast cancer survivors.
  
  
  METHODS
  We conducted a randomized controlled trial to compare the PA intervention delivered by RTR volunteers (PA plus RTR) with contact control (RTR control). Eighteen RTR volunteers/coaches (Mage = 54.9 years; Mtime since diagnosis = 7.0 years) delivered the contact control condition or the PA intervention. Seventy-six breast cancer survivors in New England (Mage = 55.6 years; Mtime since diagnosis = 1.1 years) were randomized to 1 of the 2 groups. At baseline, 12 weeks (postintervention), and at 24 weeks, participants wore an accelerometer for 7 days, were interviewed about their PA, and reported their motivational readiness for PA.
  
  
  RESULTS
  Adjusted, mixed-effects longitudinal regression models showed significant group differences favoring the PA plus RTR group in minutes of moderate to vigorous PA at 12 weeks (Mdifference = 103 min/week, p < .001) and at 24 weeks (Mdifference = 34.7 min/week, p = .03). Results were corroborated with significant group differences in accelerometer data favoring the PA plus RTR group at both time points.
  
  
  CONCLUSIONS
  Peer volunteers were able to significantly increase PA among cancer survivors relative to contact control. Partnerships with existing volunteer programs can help to widen the reach of behavioral interventions among cancer survivors. (PsycINFO Database Record
authors.affiliation: Centers for Behavioral and Preventive Medicine, The Miriam Hospital.
authors.forename: Bernardine M
authors.initials: BM
authors.lastname: Pinto
authors.affiliation: Behavioral Research Center, American Cancer Society.
authors.forename: Kevin
authors.initials: K
authors.lastname: Stein
authors.affiliation: Centers for Behavioral and Preventive Medicine, The Miriam Hospital.
authors.forename: Shira
authors.initials: S
authors.lastname: Dunsiger
mesh_terms: D061725:Accelerometry; D000368:Aged; D001943:Breast Neoplasms / Q000523:psychology*; D005260:Female; D006293:Health Promotion / Q000379:methods*; D006301:Health Services Needs and Demand; D006801:Humans; D008875:Middle Aged; D009042:Motivation; D009043:Motor Activity; D009511:New England; D010379:Peer Group; D011788:Quality of Life / Q000523:psychology*; D017741:Survivors / Q000523:psychology*; D014481:United States
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