Table 1.

Measurement and intervention schedule.

Week	Description of I Can! study activities
−1	Initial phone screening for breast cancer eligibility, physical activity level, cognition, etc.
0	Orientation/Measurement
	Written informed consent
	Objective & self-report cognition measures, questionnaires, blood draw, height & weight, medical chart abstraction, given an ActiGraph to wear on the hip for the next 7 days
1	Randomization
	Return ActiGraph, step test, sit-to-stand test, & randomized to Exercise group or Health & Wellness group
	Physical Activity Intervention	Health & Wellness Condition
	45 min in-person intro to the Exercise group:	45 min in-person intro to Health & Wellness group:
	• Taught how to use and sync Fitbit • Guided 10 min walk at moderate intensity • Personalized Weekly Goal • Discuss topic of the week: Self-monitoring, Exercising safely, & Exercise & resources	• Review menu of topics to be covered • Participants chooses topics of interest and receives handouts on each topic (sample topics below) • Discuss topic of the week: Brain Health
1–24	Emails 1–2 times a week with reminders to be active & use Fitbit and information & resources for exercising	Emails 1–2 times a week on Health & Wellness topics
3, 5, 7, 9, 11	20 in phone counseling:	20 min phone counseling:
	• Review Fitbit data & revise goal and action plan • Discuss topic (Week 3: Building motivation; Week 5: Setting goals; Week 7: Social support; Week 9: Slips; Week 11: Benefits of exercise for cancer survivors)	• Discuss any questions from the previous call • Discuss topic (Week 3: Social connections; Week 5: Healthy eating; Week 7: Stress management; Week 9: Balance exercises; Week 11: Time management)
11	Start wearing ActiGraph for 3 Month measurement
12	3 Month Measurement
	Objective & self-report cognition measures, questionnaires, blood draw, weight, step test, sit-to-stand test, return ActiGraph
13, 15, 17, 19, 21, 23	20 min phone counseling:	20 min phone counseling:
	• Review Fitbit data and progress towards goal • Revise goal and action plan • Discuss topic (Week 13: Problem solving barriers; Week 15: Time management; Week 17: Rewards; Week 19: Talking back to negative thoughts; Week 21: Strength and core exercises; Week 23: Maintenance & Holidays/vacations)	• Discuss any questions from the previous call • Discuss topic (Week 13: Keep your mind active; Week 15: Sleep; Week 17: Building healthy recipes; Week 19: Talking back to negative thoughts; Week 21: Nutrition labels; Week 23: Maintenance of healthy habits)
23	Start wearing ActiGraph for 6 Month measurement
24	6 Month Measurement
	Objective & self-report cognition measures, questionnaires, blood draw, weight, step test, sit-to-stand test, return ActiGraph, satisfaction survey
28, 32, 36, 40, 44, 48	Maintenance Period:	Maintenance Period:
	• Continue to wear and sync Fitbit • Monthly check-in phone calls • Emails every other week with reminders to be active & use Fitbit, information and information & resources for exercisingsd	• Monthly check-in phone calls • Emails every other week on Health & Wellness topics
51	Start wearing ActiGraph for 12 Month measurement
52	12 Month Measurement
	Objective & self-report cognition measures, questionnaires, blood draw, weight, step test,