realskiers

Lynn and Ron,
While out road biking this weekend, I thought of this thread. I've a mild deviated septum and sinus conditions so I may not be the best candidate for breathing through the nose.
But I'm here to tell ya, that my demands for breath volume during extended periods near the upper limits of heart rate require me to breath via my mouth. Cycling coaches teach the "belly breathing" technique where the sternum is expanded to inhale. It seemed to me that the body/head/neck position when road biking seems to contract the nasal passages.
Lynn, do you use nose breathing on extended rides?
Mike