Transtheoretical model and exercise in breast cancer survivors

A systematic review on the use of the Transtheoretical Model of Change (TTM) as a predictor variable of adherence to Physical Exercise (PE) in breast cancer survivors is presented. The systematic literature review was carried out following the PRISMA method in Scopus, Pubmed, and Psycinfo databases. Both in English and Spanish. Thirteen articles published from June 2005 to June 2020 were included. All of them used TTM constructs in their programs. The results show that the TCM variables that demonstrated its association with PE were stages of change and self-efficacy. Therefore, TCM-based interventions help to understand the adoption of exercise behavior. However, these findings are limited by the small sample size, selection biases, and lack of long-term measurements of follow-ups.