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. 2020 Jul 6;24(1):1–14. doi: 10.1038/s41391-020-0245-z

Fig. 2. Potential mechanism of exercise-modulated tumour perfusion and hypoxia.

Fig. 2

Systemic effects of augmented cardiac output and increased arterial pressure resulting from mild hyperthermia and increased stroke volume and heart rate in response to acute exercise (top panel) may influence local physiological responses and vascular adaptation in the tumour microenvironment (bottom panel). Improved tumour perfusion, either as a result of increased systemic blood flow during exercise or as a result of vascular maturation, may enhance acute and chronic oxygenation of hypoxic tumour areas, thus resulting in improved radiotherapy efficacy.