I have been working through the book and I have purchased a new chair that looked similar to the one used in the book.
However I know I am probably doing it wrong somehow. And I feel like it makes me sway back and has my ribs pertruding lots (I do have a rib flare in general though that I am trying to fix) I relax my posture a little at 45 to show how I probably slump again and ruin it when I try and relax. I think in the last few seconds of the video I relax fully and lose everything. I struggle to hold the posture and I think I'm not feeling it right anyway as I don't feel like it stretches my spine much despite me trying to 'pin' myself back. Especially when I try to relax.
If anyone could provide any thoughts and feedback that would be great!
I try to anchor my ribs in general (not in the video) but I just don't know how to do it. Should it be fully down to my abs to pull them down or should they come down from a movement in my spine? I'm not sure whether to start rolling for thoracic mobility if that will help.
Anyway here is the video . Thanks in advance everyone - https://youtu.be/k8372uCMdGA