RV-PA coupling ratio

Female sex is associated with RV-PA coupling ratio in humans (2.1 vs. 1.8, P < 0.001).

“Compared with men, women had higher RVEF and more negative RVGLS, but lower RV stroke volume and peak V̇o2, and higher RV-PA ratios (2.1 vs. 1.8, P < 0.001).”

Humanshealthy older adults without cardiovascular diseasen = 255

Sex-based differences and determinants of right ventricular function and right ventricular-pulmonary arterial adaptations in older adults

American journal of physiology. Heart and circulatory physiology·13 Dec 2025