My students can attest to the fact that I’m somewhat obsessed with pelvic alignment. Belly dance teachers still frequently teach their students to tuck the pelvis, but gone are the days when a swayback was the most common postural problem to be corrected. Most of the folks I see these days over-tuck their pelvises under and push them forward, the result of sitting at a desk all day. I spend more time guiding my students to release that tuck and bring the hips back to fall naturally under the ribcage.
Hadia of Canada opened my eyes to the fact that when the pelvis is correctly aligned, the slight knee bend of belly dance posture causes the tailbone to drop slightly on its own as the hip adductors engage, which is really all we need to be able to move those hips safely, precisely, and freely.
Here’s a wonderful article on how pelvic alignment is meant to work, and how to find it:
And, here’s one written about prepping for squats with proper form, but it’s fantastic for finding and fixing the tight muscles that are getting in the way of your pelvis aligning properly:
http://www.katysays.com/you-dont-know-squat/