In this randomized, controlled, prospective, two-arm intervention study, the investigators plan to investigate the effects of high-intensity interval training in women diagnosed with triple-negative breast cancer. Breast cancer is one of the most common cancers and one of the leading causes of cancer-related deaths worldwide. Among the different subtypes, triple-negative breast cancer accounts for about 15-20% of all breast cancer cases and is characterized by a more aggressive clinical course. Recent results indicate that the percentage of patients with a pathologic complete response was 13% higher in the chemotherapy-immunotherapy group (by 64.8%) than in the placebo-chemotherapy group (51.2). High-intensity interval training has a positive effect on the immune system, suggesting that it may improve the efficacy of chemo-immunotherapy, leading to a higher rate of pathologic complete response (pCR) in patients with newly diagnosed triple-negative breast cancer. In addition to the immunomodulatory effects, this exercise model could boost microvascular perfusion, thereby improving tumor perfusion, enhancing chemo-immunotherapy and leading to better outcomes.