Do the Effects of Exercise on Breast Cancer Prevention Vary With Environment
Abstract
Does walking outdoors have the same breast cancer protective effect as walking on a treadmill indoors, away from natural light, in a typical gym atmosphere? Is the ambient exposure to sunlight important in stress and breast cancer risk reduction? Our basic premise is that the breast cancer protective mechanisms of exercise depend on context of exercise, not just on the number of repetitive muscular contractions completed over a specific period of time, and that a more pleasant and peaceful environment will decrease perceived stress and enhance immunity, theoretically leading to more positive mood and more effective cancer surveillance. A more relaxed walking atmosphere may decrease physiological consequences of stress, such as high cortisol, melatonin, and norepinephrine (as measured by alpha amylase). Revisions to the original endpoints include adding a questionnaire to assess mood changes, and replacing blood samples with salivary hormone measurements of cortisol, alpha amylase, and melatonin.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 2005
- Accession Number
- ADA444027
Entities
People
- Jane Teas
Organizations
- University of South Carolina