History informing the future of exercise oncology.

Exercise is increasingly recognized by patients, clinicians, and allied health professionals globally as an important component of cancer care. In this paper, we provide a viewpoint on developments in exercise oncology over the past 4 decades leading up to the creation of the International Society of Exercise Oncology (ISEO). We briefly review research in adult and pediatric cancers from early foundation studies to larger randomized controlled trials published in mainstream oncology journals alongside critical work undertaken in exercise and cancer biological mechanisms. We also discuss potential strengths, weaknesses, opportunities, and threats facing ISEO in becoming a global forum for exercise oncology. Building on the foundational work undertaken over the past 4 decades by researchers, clinicians, and practitioners, ISEO provides an opportunity to support research, leverage collaborations and partnerships, facilitate education and training, increase awareness of exercise oncology, and support translation of research to clinical practice, ultimately improving the quality and quantity of life for people with cancer.