Yoga Physiology

Yoga physiology, anatomy and movement science

About me

I am a senior teacher at OM yoga Center in New York City, where I teach on the teacher training faculty, with a specialization in anatomy for yoga teachers. I have a masters degree in applied physiology, and have written about yoga anatomy and physiology for both popular and scholarly journals.


5 responses to “About me

  1. diahne November 15, 2011 at 8:27 pm

    Love this site. Wonderful info — complicated issues made very understadable….More, lots more, please!!!!!!!

  2. Deirdre February 16, 2013 at 4:33 pm

    Hi – great website. Just one thing. You mention ‘diaphragmatic’ vs’ non-diaphragmatic breathing.’
    Actually the diaphragm is always used for breathing but just in a different way, or a different direction.
    However, I so appreciate your way of clearly describing why CO2 and O2 can stay balanced in properly executed kapalabhati. Thanks again Deirdre

    • Joe Miller February 16, 2013 at 9:41 pm

      Hi Deirdre. Thanks for your comment. Glad you like the blog. I agree that during an active inhalation the diaphragm is always involved (unless there’s nerve damage). It may not be used efficiently, but it’s still contracting. As you point out, the way the terms “diaphragmatic” vs.”non-diaphragmatic” breathing are often used is not very accurate. Even in inefficient breathing — which is what people usually are referring to when they talk about non-diaphragmatic breathing — the diaphragm contracts. There’s just a lot of other work going on in other muscles that makes it harder for the diaphragm to do its job. However, I think that kapalabhati, if it’s done correctly, actually is non-diaphgragmatic. The expansion of the lungs when you inhale during kapalabhati is a result of elastic recoil –the dropping of the abdomen pulling the central tendon of the diaphragm down passively. The diaphragm is moving of course, but it’s not actively contracting. In my experience, it’s when people try to make the inhalation active during kapalabhati that they run into trouble. Anyway, thanks again for your comment. If you want to continue to follow new posts, I’ve moved the blog over to my personal website: Hope to see you there.

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