Craig, thank you, first of all, for posting all of these practices! I'm having some trouble with the seated practice. I tend to have a slight swayback posture, which tenses my low back. It's improved a lot in the past year using various practices, but I still find it tricky to sit in a balanced way, with everything aligned. My low back tends to round or tighten, which pulls a lot of my attention during a practice like this one. I would appreciate any thought or advice you have on the matter.
This is typical of the kua being a little (or a lot) sticky, which in turn makes the glutes super tight. You'll need to work a few things, mainly activating internal rotation and adduction properly to spread out the posterior hip capsule and release the glutes. These kind of exercises will give you a clue as to whether this is the issue, if they are easy enough then I'm probably off the mark , but if they are super difficult/crampy it would be worth working them until they are stronger, and see what the effect is: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-NFvR1NLuw3Y.html ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Brbt5AHTEkw.html ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Xl-Fvxs1Avk.html and one from me: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-GADjaFEhujs.html Hope this helps