A new systematic review and meta-analysis published in the British Journal of Sports Medicine shows that structured exercise significantly improves overall survival in cancer patients. Adults who engaged in regular physical activity as part of their care were twenty-three percent less likely to die and seventeen percent less likely to experience disease recurrence before death.
Clinical Trial Findings and Survival Benefits
Researchers scanned research databases for randomized controlled clinical trials published up to the end of 2025 to evaluate the impact of structured exercise on survival and disease recurrence in adults with confirmed cancer.
The average age of participants was 54, with a range spanning from 47 to 76 years. The average monitoring period across these studies lasted 64 months, ranging from 2 to 99 months. Breast cancer emerged as the most common type of cancer studied, followed by cancers of the bowel and pancreas.
Pooled results demonstrated that patients who exercised as part of their oncology care experienced distinct survival advantages. Separate analyses revealed that these individuals were 18% less likely to die from any cause and 26% less likely to die specifically from their cancer. However, researchers noted no clear evidence indicating that structured exercise prolonged the time before a patient’s cancer worsened, nor did it increase the likelihood that no invasive cancer remained after standard treatment.
Biological Mechanisms Linking Exercise to Tumor Control
The study authors point to several plausible biological explanations for how physical activity influences cancer survival and recurrence risk. Aerobic exercise drives systemic cardiovascular conditioning, immune cell mobilization, and normalization of tumor perfusion, mechanisms directly relevant to systemic tumor control,
explain the researchers.
Additional biological pathways include boosting the body’s immune response to cancer and improving blood flow within tumors to help medical treatments work more effectively. Exercise may also reduce circulating levels of sex-specific hormones while increasing glucose uptake by muscles, thereby leaving fewer nutrients available to fuel cancer cells. Furthermore, researchers suggest physical activity can help cells repair DNA damage, potentially limiting cellular changes that drive tumors to become more aggressive.
Program Adherence and Modality Analysis
Effectiveness heavily depended on the type of regimen and patient adherence. The survival and recurrence risk benefits proved strongest among patients with early-stage disease, individuals who maintained their exercise routines, and those who performed aerobic exercise or a combination of aerobic exercise and strength training. An exploratory analysis highlighted that associations were even stronger among participants who completed at least 70% of their prescribed exercise program.
While overall survival estimates clearly favored aerobic exercise alone and combined aerobic and strength regimens, researchers found no clear association for strength training alone. They noted that this particular finding was based on only a single trial involving 129 participants.
Considerations and Recommendations for Oncology Care
Despite demonstrating measurable benefits, the study authors acknowledged multiple limitations in their analysis. These include the migration of participants in comparison groups toward healthier behaviors, considerable variations in the type, duration, and intensity of the exercise interventions studied, and a heavy predominance of evidence drawn from breast cancer trials alongside relatively little data on advanced-stage disease.
Our meta-analysis provides direct, quantified evidence suggesting that the benefits of structured exercise may extend beyond supportive care to outcomes traditionally associated with therapeutic interventions, while underscoring that observed effects are context dependent and sensitive to trial design, conduct, and feasibility.
Tzang et al., study authors, British Journal of Sports Medicine
Researchers concluded that incorporating the therapeutic potential of physical activity into cancer care merits serious consideration. Standard curative surgery and chemotherapy leave patients facing a recurrence rate of 20% to 40%, and while structured exercise is already widely recommended to ease fatigue, enhance physical functioning, and boost quality of life, these findings substantiate its role in survival outcomes.
