Self-monitoring Activity: a Randomized Trial of Game-oriented Applications

Inclusion Criteria:

1. Age between 45 and 75 years old
2. Report a breast cancer diagnosis no more than 10 years prior to enrollment
3. Cessation of menses for 12 months or more
4. Able to read and understand English
5. Able to read words in standard applications on a mobile device 3-4" large
6. Able to walk for exercise
7. Able to find transportation to the study location
8. Willing to use a mobile device provided by the study to participate (or to use one of their own)
9. Willing to be randomized to either group

Exclusion Criteria:

1. Currently pregnant or nursing
2. Surgery in the past six months
3. Chemotherapy or radiation treatment in the past six months
4. Evidence of disease recurrence
5. Participant is active (90 minutes of moderate-vigorous intensity activity per week or more)
6. BMI is under 25 kg/m2 or over 35 kg/m2
7. Report a heart condition, chest pain during periods of activity or rest, loss of consciousness, etc. on the Physical Activity Readiness Questionnaire (PAR-Q), unless cleared by their physician
8. Participant reports hospitalization within the past year due to psychiatric problem(s)
9. Report current symptoms of alcohol or substance dependence
10. Plans to move away from the Galveston-Houston area or to be out of town for more than 1 week during the study period
11. Stroke, hip fracture, hip or knee replacement, or spinal surgery in the past 6 months
12. Report a history of severe orthopedic complications that would prevent optimal participation in the physical activities prescribed (e.g., severe arthritis, leg amputations, etc.)
13. Clinical judgment concerning safety
14. Lost more than 5% body weight in the previous 6 months
15. Currently participating in a physical activity or weight loss program
16. Current smoker
17. Participant already uses an electronic activity monitor (we will ask them to stop)
18. Another member of the household is a participant or staff member on this trial