Literature indicates that physical activity has significant primary-preventive effects concerning various cancer entities. An entity-specific approach is needed to study the mechanisms for these effects. Numerous studies showed that physical activity during tumour therapy can result in a reduction in fatigue, increase in quality of life and exercise capacity and a reduction in treatment-associated disorders such as fatigue, nausea, insomnia and pain. Therefore, physical activity during ongoing cancer treatment is considered to be an effective support therapy without any negative effects, if relevant contraindications are considered. Prognosis of some malignant diseases may be modulated by physical activity during follow-up care. Furthermore, due to its other multi-dimensional effects, physical activity plays an increasing role in follow-up care even independent of the influence on prognosis. Significance of physical activity in all phases of cancer disease is delineated in this review.
Physical activity can be recommended during all stages of cancer disease if contraindications are followed.