“…In earlier studies, we investigated the morphological, biomechanical, and functional sex differences of coronary resistance vessels in a healthy state on the effects of hypertension and sports activities ( Matrai et al, 2007 ; Mátrai et al, 2012 ; Török et al, 2020b ). By studying coronary vessels, using an in vitro pressure myograph, we found that physical training in females led to an increase in contractility, while, in males, endothelium-related dilatation capacity was increased ( Török et al, 2020b ). This alteration observed in the male group, following long-term physical exercise, was not detected in postmenopausal women ( Pierce et al, 2011 ).…”