An Exercise RCT Targeting African-American Women With Metabolic Syndrome and High Risk for Breast Cancer

Supervised Facility-Based Exercise Intervention Arm The participants randomized to the exercise group will be required to meet and maintain a goal of 150 min/wk of moderate intensity exercise for 6 months. This intervention will use heart rate and rating of perceived exertion (RPE) to define moderate intensity. Participants will exercise for the prescribed duration at a heart rate in the range of 45-65% of their maximal oxygen consumption (VO2 max), as determined during baseline testing, and with an RPE in the range of 11-14 on the 20-point scale. The exercise will primarily utilize treadmills and exercise bikes.

Home-Based Exercise Intervention Group The participants randomized to this intervention arm will be required to meet and maintain a goal of 150 min/wk of moderate intensity exercise for 6 months, the same as the supervised intervention group. Their exercise goal will be to achieve a total of 10,000 steps per day, as measured by pedometers. Participants will be required to have a cell phone with text messaging capabilities.