At first I misunderstood and was holding them until I could not hold my breath any more...that was really hard...Now I just Breathe In through my nose and move, pause briefly, breathe out through my mouth and pause briefly...
so for example in rite 2, I raise my legs and breathe in through my nose, pause in the vertical position, then exhale through my mouth and lower my legs, pause in the resting position, then start over...