Slow breathing increases cardiac-vagal baroreflex sensitivity (BRS), improves oxygen saturation, lowers blood pressure, and reduces
anxiety. Within the yoga tradition slow breathing is often paired with a contraction of the glottis muscles. This resistance breath
“ujjayi” is performed at various rates and ratios of inspiration/expiration. To test whether ujjayi had additional positive effects to
slow breathing, we compared BRS and ventilatory control under different breathing patterns (equal/unequal inspiration/expiration
at 6 breath/min, with/without ujjayi), in 17 yoga-naive young healthy participants. BRS increased with slow breathing techniques
with or without expiratory ujjayi (