For decades, exercise was viewed as an optional lifestyle choice for women diagnosed with breast cancer. Today, the science tells a very different story. A comprehensive 25-year bibliometric analysis of more than 13,000 scientific publications demonstrates that physical activity has become one of the fastest-growing and most influential areas of breast cancer research.
This landmark review did not evaluate a single clinical trial. Instead, it examined how the entire field of exercise and breast cancer research has evolved from 2000 through 2025, identifying the most influential researchers, institutions, journals, and emerging scientific themes.
From “Is Exercise Safe?” to “Exercise Should Be Standard Care”
One of the most striking findings is how dramatically the focus of research has changed.
Early studies primarily asked whether exercise was safe during and after breast cancer treatment and whether it improved physical fitness. Today, researchers are asking much more sophisticated questions:
- How can exercise improve long-term survivorship?
- What exercise prescription works best for different breast cancer subtypes?
- How can telehealth and remote exercise programs expand access?
- How should exercise be integrated into routine oncology care?
The authors describe a clear shift from studying exercise as a supportive activity to recognizing it as an essential component of comprehensive cancer treatment.
An Explosion of Scientific Evidence
The investigators identified 13,329 publications on physical activity and breast cancer, with research output accelerating dramatically during the past decade. Nearly 90% of all publications were original research articles or review papers, reflecting a mature and scientifically rigorous field.
The review also highlights internationally recognized leaders whose work has helped shape modern Exercise Oncology, including:
- Kerry Courneya
- Christine Friedenreich
- Kathryn Schmitz
- Melinda Irwin
- Jennifer Ligibel
- Lee Jones
- Wendy Demark-Wahnefried
These investigators have produced much of the evidence supporting today’s exercise recommendations for breast cancer patients.
Quality of Life Is Now a Central Goal
Perhaps the most encouraging trend is the growing emphasis on outcomes that matter most to patients.
Instead of focusing solely on laboratory measures or physical performance, current research increasingly addresses:
- Cancer-related fatigue
- Quality of life
- Psychological well-being
- Long-term survivorship
- Functional recovery
- Exercise during active treatment
- Clinical practice guidelines
This evolution reflects a broader recognition that successful cancer treatment is not only about survival—it is also about helping patients live well during and after treatment.
The Next Frontier
The authors conclude that Exercise Oncology has reached an important milestone—but more work remains.
Future priorities include:
- Integrating exercise prescription into routine oncology practice.
- Developing standardized exercise prescriptions based on tumor biology, treatment type, and clinical context.
- Expanding research into underserved populations and low- and middle-income countries.
- Increasing multicenter clinical trials.
- Growing the use of tele-exercise and digital health technologies to improve access.
These recommendations align closely with the mission of CancerFitness.org: making evidence-based exercise accessible to every person living with or beyond cancer.
Why This Matters
This publication is more than a review of scientific trends—it is evidence that Exercise Oncology has evolved into a mature clinical discipline.
The growing body of research confirms that exercise is no longer an “alternative” or “adjunct” therapy. It is becoming a fundamental part of modern breast cancer care, supported by thousands of studies and an expanding global community of researchers, clinicians, and survivors.
For women diagnosed with breast cancer, that represents extraordinary progress—and tremendous hope.
Call to Action
At CancerFitness.org, we believe every breast cancer patient deserves access to safe, personalized, evidence-based exercise throughout diagnosis, treatment, and survivorship.
Whether you are newly diagnosed, undergoing therapy, or years beyond treatment, physical activity can help improve strength, reduce fatigue, enhance quality of life, and support long-term health.
Join us in advancing Exercise Oncology. Learn the science, ask your oncology team about exercise, and become part of the movement that is transforming cancer care—one step, one workout, and one survivor at a time.
Reference: Research Trends in Physical Activity and Breast Cancer: A 25-Year Bibliometric Analysis (2000—2025). C. Navarro-Martínez, D.-H. Villarejo-García, B.A. Becerra-Patino, J. Pino-Ortega. Clinical Oncology 56 (2026) 104208: https://doi.org/10.1016/j.clon.2026.104208
