Conclusion There is preliminary evidence to suggest that a variety of physical activity behaviour change interventions targeting men with a history of prostate cancer can be efficacious , at least in the short term .
Purpose Men who are survivors of prostate cancer report a variety of psychological and physical factors contributing to a lower quality of life , and physical activity can assist to mitigate these issues .
This review aims to provide a summary of physical activity behaviour change trials targeting prostate cancer survivors , assess the feasibility of these interventions and , if possible , identify intervention and study characteristics associated with significant intervention effects .
Social cognitive theory mediators of physical activity in a lifestyle program for cancer survivors and carers: findings from the ENRICH randomized controlled trial
Background Despite increasing numbers of cancer survivors and evidence that diet and physical activity improves the health of cancer survivors , most do not meet guidelines . Some social cognitive theory (SCT)-based interventions have increased physical activity behavior , however few have used objective physical activity measures . The Exercise and Nutrition Routine Improving Cancer Health ( ENRICH ) r and omized controlled trial reported a significant intervention effect for the primary outcome of pedometer-assessed step counts at post-test ( 8-weeks ) and follow-up ( 20-weeks ) . The aim of this study was to test whether the SCT constructs operationalized in the ENRICH intervention were mediators of physical activity behavior change . Methods R and omized controlled trial with 174 cancer survivors and carers assessed at baseline , post-test ( 8-weeks ) , and follow-up ( 20-weeks ) . Participants were r and omized to the ENRICH six session face-to-face healthy lifestyle program , or to a wait-list control . Hypothesized SCT mediators of physical activity behavior change ( self-efficacy , behavioral goal , outcome expectations , impediments , and social expectations ) were assessed using valid and reliable scales . Mediation was assessed using the Preacher and Hayes SPSS INDIRECT macro . Results At eight weeks , there was a significant intervention effect on behavioral goal ( A = 9.12 , p = 0.031 ) and outcome expectations ( A = 0.25 , p = 0.042 ) . At 20 weeks , the intervention had a significant effect on self-efficacy ( A = 0.31 , p = 0.049 ) and behavioral goal ( A = 13.15 , p = 0.011 ) . Only changes in social support were significantly associated with changes in step counts at eight weeks ( B = 633.81 , p = 0.023 ) . Behavioral goal was the only SCT construct that had a significant mediating effect on step counts , and explained 22 % of the intervention effect at 20 weeks ( AB = 397.9 , 95 % CI 81.5–1025.5 ) . Conclusions SCT constructs had limited impact on objective ly-assessed step counts in a multiple health behavior change intervention for cancer survivors and their carers . Behavioral goal measured post-intervention was a significant mediator of pedometer-assessed step counts at 3-months after intervention completion , and explained 22 % of the intervention effect . Future research should examine the separate impact of goals and planning , as well as examining mediators of behavior maintenance in physical activity interventions targeting cancer survivors . Trial registration Australian and New Zeal and Clinical Trials registry ANZCTRN1260901086257
Conclusion There is preliminary evidence to suggest that a variety of physical activity behaviour change interventions targeting men with a history of prostate cancer can be efficacious , at least in the short term .
Purpose Men who are survivors of prostate cancer report a variety of psychological and physical factors contributing to a lower quality of life , and physical activity can assist to mitigate these issues .
This review aims to provide a summary of physical activity behaviour change trials targeting prostate cancer survivors , assess the feasibility of these interventions and , if possible , identify intervention and study characteristics associated with significant intervention effects .