Enhancing Physical Activity Adherence After Breast Cancer Diagnosis (BEAT Cancer Study II)
Physical activity may improve quality of life, the control of comorbid conditions, and
weight management while reducing breast cancer recurrence and mortality among breast cancer
survivors. Unfortunately, most breast cancer survivors do not engage in regular physical
activity. In fact, breast cancer survivors are often less active after a diagnosis and may
not return to pre-diagnosis activity levels. Therefore, we conducted a pilot study, "BEAT
Cancer", to test a specifically defined physical activity behavior change intervention to
increase physical activity for breast cancer survivors. The pilot study showed significant
improvement in both physical activity and health outcomes for the study participants after
the intervention. Importantly, the pilot intervention resulted in changes in physical
activity and social cognitive theory constructs, such as the participants feeling more
confident in their ability to exercise. The positive results enhance our potential for
testing mechanisms that encourage physical activity behavior change in breast cancer
survivors. The current study is a follow-up to confirm program effectiveness at 3 months and
to test sustainability of results at 3-12 months. We propose a multi-center, randomized
controlled trial enrolling 256 breast cancer survivors with the following study aims:
1. To compare the effects of the 3-month BEAT Cancer physical activity behavior change
intervention to usual care on short and longer term physical activity adherence among
breast cancer survivors. We hypothesize that, compared with usual care, the
intervention will result in a significant increase in physical activity after the
intervention that will be maintained up to 12 months after baseline.
2. To better understand the reasons why breast cancer patients change their physical
activity behavior, we will compare the effects of the BEAT Cancer physical activity
behavior change intervention to usual care on social cognitive factors to see if such
changes contribute to physical activity behavior change. We hypothesize that, compared
with usual care, the intervention will result in significant improvements in social
cognitive factors which lead to changes in physical activity behavior.
3. We also aim to compare the short and longer term health effects of the BEAT Cancer
physical activity behavior change intervention when compared with usual care. We
hypothesize that, compared with usual care, the intervention will result in significant
improvements in fitness, muscle strength, waist-to-hip ratio, quality of life, fatigue,
and sleep quality, while reducing joint dysfunction.
Interventional
Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment
change in physical activity
Physical activity will be measured with accelerometers and self-report questionnaire. Change will be calculated as difference between baseline and 3 endpoints (3, 6 and 12 months).
baseline to 3 months
No
Laura Q. Rogers, MD, MPH
Principal Investigator
University of Alabama at Birmingham
United States: Institutional Review Board
ROG-SCCI 09-003-2
NCT00929617
June 2010
May 2015
Name | Location |
---|---|
Southern Illinois University School of Medicine | Springfield, Illinois 62794-9658 |
University of Alabama at Birmingham | Birmingham, Alabama 35294-3300 |
University of Illinois | Chicago, Illinois 60612 |