Adherence to a randomized controlled trial of aerobic exercise in breast cancer survivors: the Yale exercise and survivorship study
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To examine predictors of exercise adherence in breast cancer survivors.
Seventy-five breast cancer survivors were randomly assigned to exercise (n = 37) or usual care (n = 38). Demographic, prognostic, physiologic, and psychosocial information was collected at baseline and 6 months. The exercise goal was 30 min of exercise 5 days/week for 6 months.
Women randomized to exercise participated in moderate-intensity recreational exercise for 123 ± 52 min/week (81% of the prescribed 150 min/week) over 6 months. Baseline variables associated with better adherence were lower body mass index (BMI), smaller waist circumference, higher amounts of physical activity 6 months prior to enrollment, being in the preparation vs. contemplation Stage of Change and higher FACT-B breast cancer subscale score. After adjusting for these variables, lower BMI and higher Stage of Change continued to be associated with better adherence (p < 0.05).
Future studies of exercise and breast cancer prognosis should target obese women for participation, as well as women just beginning to contemplate participation and its benefits after a cancer diagnosis.
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- Adherence to a randomized controlled trial of aerobic exercise in breast cancer survivors: the Yale exercise and survivorship study
Journal of Cancer Survivorship
Volume 3, Issue 3 , pp 148-157
- Cover Date
- Print ISSN
- Online ISSN
- Springer US
- Additional Links
- Physical activity
- Industry Sectors
- Author Affiliations
- 1. Yale School of Public Health, New Haven, CT, USA
- 2. Dana Farber Cancer Institute, Boston, MA, USA
- 3. Fred Hutchinson Cancer Research Center, Seattle, WA, USA
- 4. Department of Epidemiology and Public Health, Yale School of Public Health, P.O. Box 208034, New Haven, CT, 06520-8034, USA