Is man able to breathe once a minute for an hour?: The effect of yoga respiration on blood gases

Abstract

The ventilatory response to hypercapnia and arterial blood gases during ujjai respiration of once per minute for an hour were determined in a professional hatha yogi. The results suggest that lower chemosensitivity to hypercapnia in yoga practitioners may be due to an adaptation to low arterial pH and high PaCO2 for long periods.