[QUOTE=yogacambodia;65818]I am not sure…I think that Udiyana bandha is a gentle contraction/uplift that is done throughout Ashtanga ,power or vinyasa type yoga asana.
And Udiyana practice is the STRONG contraction/uplift…where the belly become hollow and is the beginnings of Nauli.
Different schools of yoga use different terms/names.
(Half Moon or Ardha Chandrasana is a totally different posture in different schools of yoga…this goes for many asanas/practices/mudras…very confusing)[/QUOTE]
this is how I learned it was well. And primarily as the lower abdomen.
although I don’t practice Ashtanga here is Kino MacGregor talking about using the Udiyana bandha and pelvic floor as a steering wheel
I post Kino b/c I thinks she’s a great teacher irregardless of your style.
and here’s a great 17min. video of Kino talking about Udiyana bandha, how to find your pelvic floor and why you should always have your lower abdomen tucked in a little during your whole asana routine. Well worth the viewing.