This randomized, multicenter, parallel-controlled pilot trial was conducted in two tertiary hospitals in Spain to evaluate the effects of a short-term supervised concurrent training program on physical activity adherence and quality of life in breast cancer survivors.
Participants allocated to the intervention group completed a 6-week supervised concurrent training program consisting of 12 sessions (two sessions per week, approximately 60 minutes per session). The training program combined resistance, cardiovascular, and neuromotor exercises and was designed to address muscle strength, cardiorespiratory fitness, coordination, and functional mobility. Exercise sessions were supervised by qualified exercise professionals trained in oncology rehabilitation. Exercise intensity was individually adjusted and monitored to ensure participant safety and adherence to the prescribed training load.
The control group attended a single educational session focused on healthy lifestyle and nutrition and did not participate in the exercise program. Both groups continued to receive usual oncological follow-up throughout the study period.
Assessments were conducted at baseline, immediately after the intervention (6 weeks), and during follow-up at 3 and 6 months to evaluate changes over time. Ethical approval was obtained from the institutional ethics committees of the participating centers (protocol code 2018/0009), and written informed consent was obtained from all participants prior to study participation.
