Wave breath

When you talk about the wave breath is that the same as the three-part ujjaye yogi breath? If so then I am confused because other sources say fill the abdomen, chest then under the clavicle on the inhalation and release clavicle, chest and abdomen on the exhalation. You say the chest, is first.

Please clarify and thanks so much Namaste, D from Florida

3-part breath is confusing depending upon where you learned it. Most teachers learned it from a Sivananda tradition parent teacher, it involves filling belly upward on inhale this is reverse of Desikachar/Krishnamacharya method which is what I teach. Read over passages in my book on this. It follows the movement of the diaphragm as the primary respiratory muscle.