Effects of personalized exercise prescriptions and social media delivered through mobile health on cancer survivors' physical activity and quality of life.

"Competing interests The authors declare that they have no competing interests."

"This study was funded by College of Education and Human Development Acceleration Research Award at the University of Minnesota Twin Cities, USA. At the time of this study, the first author was with the School of Kinesiology at the University of Minnesota-Twin Cities, USA."

"This study was registered at Clinical Trials (ClinicalTrials.gov Identifier: NCT05069519). In this study, all CS received a Fitbit Charge 5 tracker (Google, San Francisco, CA, USA) and installed its companion app on their mobile phones. We then randomized 126 CS to 4 groups for a 6-month intervention period: (1) a personalized exercise prescriptions group (tracked daily PA via Fitbit (Google), shared PA data remotely, and received personalized exercise prescriptions from researchers); (2) a Facebook health education group where participants had access to weekly health education and interacted with one another on a private page; (3) a combination of personalized exercise prescriptions and Facebook health education group (tracked daily PA via Fitbit, received personalized exercise prescriptions, had access to weekly health education, and interacted with one another on Facebook); and (4) an attention control group where participants continued with standard care. The primary outcome was daily steps, and secondary outcomes included HRQoL and PA determinants. Each condition lasted 6 months. All CS underwent identical assessments at baseline (pre-test), 3 months (mid-test), and 6 months (end-point or post-test)."