Hi Lucas
I did watch the video and it was … how shall I say … interesting, and at times amusing … and I can also happily see a big parallel in what he’s saying with the precision techniques I teach in class.
So rather than risking “popping a lung” which of course won’t happen, why don’t you focus on a deepening breath in Pranayama exercise? The rhythmic nature of the exercise and the necessity to hold the breath if you can’t keep breathing in or out for the whole 6 counts will fundamentally do the same thing.
Same thing goes with the bends to the side. Breathe well and as deeply as you can without struggle with the BEST damn precision alignment you can to open up your chest.
Your breathing technique will definitely benefit.
Namaste
Gabrielle 🙂