Key clinical point: High cardiorespiratory fitness (CRF) may prevent the development of breast cancer (BC) in postmenopausal women.
Major finding: Compared with women with low-to-moderate estimated CRF, those with high eCRF had 24% lower odds of developing BC (adjusted subdistribution hazard ratio 0.76; 95% CI 0.60-0.97).
Study details: This study used the UK Biobank data to evaluate 17,840 post-menopausal women who were free of cancer and were followed for 11 years, of which 529 women developed BC.
Disclosures: This project was funded in part by the Canadian Institutes of Health Research and discretionary funds held by JD Brooks. The authors declared no conflicts of interest.
Source: Christensen RAG et al. Association between estimated cardiorespiratory fitness and breast cancer: A prospective cohort study. Br J Sports Med. 2023 (Jun 19). Doi: 10.1136/bjsports-2021-104870