Diagnosis of Stage II-III Triple-Negative Breast Cancer (TNBC) (negative for estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER2));
Timeframe of 3 to 9 months after completion of surgery, adjuvant chemotherapy, radiation therapy, and/or immunotherapy;
Physician-certified (cardiologist) physical fitness for exercise testing, supported by echocardiography (ECHO).
Reproductive age (premenopausal);
No current or prior diagnosis of any type of cancer;
Matched by age, body constitution, and physical fitness to the breast cancer participant group.
