McGowan EL, et al. – In this study, the association between the built environment and physical activity (PA) in prostate cancer survivors (PCS) was examined. In addition, experts aspired to reveal whether built environment factors (walkability, count of sports complexes) were effect modifiers of a PA intervention. No link was observed between the built environment and PA. Moreover, built environment was not an effect modifier in a PA behaviour change intervention for PCS.

Methods

• 165 PCS residing in Edmonton, Alberta, from the PROMOTE trial, were incorporated in this study.
• It was indicated that the PROMOTE trial was a randomized controlled trial of a behaviour change intervention to increase PA and quality of life in PCS.
• 423 PCS were randomly assigned to a standard physical activity recommendation, self-administered implementation intention, or telephone-assisted implementation intention group, in this trial.
• Assessment was done for PA and quality of life outcomes at baseline, 1, and 3 months.
• The walkability and count of sport complexes were appraised in order to explore the role of the built environment.

Results

• As per the linear regression analyses, the self-administered intervention group had an increase in self-reported PA minutes/week (β = 133.4, 95% CI = -18.9 to 285.6).
• However, none of the built environment variables were found to be significantly associated with PA.
• Although no built environment variables were associated with PA levels, the logistic regression showed that the self-administered intervention group had a significantly greater likelihood of meeting the PA guidelines (OR = 2.1, 95% CI = 0.9 to 4.9).