Activity Promotion Trial (ACTION)
Summary of the ACTION Trial
The Activity Promotion (ACTION) Trial, led by my former doctoral student Dr. Jeff Vallance ( Athabasca University ), was a randomized behavior change trial designed to determine the effects of breast cancer-specific print materials (an exercise guidebook), a step pedometer, or their combination on physical activity and quality of life in breast cancer survivors. The guidebook was first developed and evaluated for its suitability, appropriateness, content, and theoretical base [Vallance et al. Health Ed. Beh. 2008; 35 :174-89] . In the primary paper, we found that all three intervention groups significantly increased their physical activity compared to the standard recommendation group [Vallance et al. J. Clin. Onc. 2007; 25 :2352-9] . In an important mediation analysis, we found that the interventions resulted in favorable changes in attitude, intention, and planning, which partially mediated the effects of the intervention on physical activity [Vallance et al. Ann. Beh. Med. 2008; 35 :150-8] . Finally, we found that several demographic, behavioral, psychosocial, and motivational variables predicted continued exercise adherence six months after the intervention [Vallance et al. Am. J. Health Beh. 2010; 34 :225-36] .
Publications from the ACTION Trial
Vallance, J.K. , Courneya, K.S. , Taylor, L.M., Plotnikoff, R.C., & Mackey, J.R. (2008). Development and evaluation of a theory-based physical activity guide for breast cancer survivors. Health Education & Behavior , 35 , 174-189.
Vallance, J.K.H. , Courneya, K.S. , Plotnikoff, R.C., Yasui, Y., & Mackey, J.R. (2007). Randomized controlled trial of the effects of print materials and step pedometers on physical activity and quality of life in breast cancer survivors. Journal of Clinical Oncology , 25 , 2352-2359.
Vallance, J.K. , Courneya, K.S. , Plotnikoff, R.C., & Mackey, J.R. (2008). Analyzing theoretical mechanisms of physical activity behavior change in breast cancer survivors: Results from the activity promotion (ACTION) trial. Annals of Behavioral Medicine , 35 , 150-158.
Vallance, J.K. , Courneya, K.S. , Plotnikoff, R.C., Dinu, I., & Mackey, J.R. (2008). Maintenance of physical activity in breast cancer survivors after a randomized trial. Medicine & Science in Sports & Exercise , 40 , 173-180.
Vallance, J.K. , Plotnikoff, R.C., Karvinen, K.H. , Mackey, J.R., & Courneya, K.S. (2010). Understanding physical activity maintenance in breast cancer survivors. American Journal of Health Behavior , 34 , 225-236.