The goal of this clinical trial is to learn the impact and implementation of home-based aerobic and resistance training for patients with breast cancer in Indonesia. The main questions it aims to answer are:
* Does the home-based aerobic and resistance training improve physical fitness, fatigue, and quality of life of patients with breast cancer?
* Are the benefits of aerobic and resistance training mediated by inflammatory level changes?
* What are the barriers and facilitators in implementing the home-based aerobic and resistance training?
* Is the home-based aerobic and resistance training feasible to be implemented in Indonesia's setting?
To answer those questions, participants will:
* Conduct home-based aerobic and resistance training with supervision.
* Visit the hospital once every 4 weeks for their routine visits.
* Undergo physical fitness test before and after 12 weeks using treadmill test, as well as interviews to assess fatigue, quality of life, and intervention acceptability.
* Keep a diary to record the aerobic and resistance training at home.
* Undergo routine monitoring by phone every week with the research team.