Implementing Personalized Exercise Prescriptions Through Mobile Health in the Elderly Cancer Survivors

"Participants will continue with standard care, but will receive a Fitbit and be encouraged to participate in at least 150 min. moderate-to-vigorous physical activity (5 sessions aerobic exercise, 30 min. per session; and 2 sessions of strength training) per week if their body condition allows throughout the intervention period. The previously established daily and weekly exercise prescription will be offered to participants based on their previous week Fitbit data.~PA improvements will be tailored over time based on each participant's previous week PA and they will be encouraged to increase PA by 5-10 min/week if possible depending on specific situations. Participants will save each workout and synchronize the Fitbit PA data to its app where they only share daily data and receive weekly personalized exercise prescriptions established in pilot studies."

Participants assigned to this condition will receive a Fitbit smartwatch, continue with standard care, but will receive health education tips developed in the investigators' previous studies from a private Facebook group in which only group members and researchers can access. Additionally, the investigators will track login counts, analyze their post activity and online sentiments via texting mining and natural language processing, and then offer weekly personalized feedback based on the data to facilitate social support