Description of age- and sex-specific reference values for cardiorespiratory fitness in healthy ethnic Kazakh adults: a cross-sectional study
Future Sci OA. 2026 Dec;12(1):2670436. doi: 10.1080/20565623.2026.2670436. Epub 2026 May 13.ABSTRACTBACKGROUND: Cardiorespiratory fitness (CRF) is a strong predictor of cardiovascular morbidity and mortality. This study aimed to describe age- and sex-specific reference values for CRF in healthy adul

