06/22/2014 at 8:43 pm #74837
The “butt tight” part of the bracing sequence is basically just a pelvis-aligner. It’s to help you get your pelvis into a good position, which then allows you to achieve a good spine position which is what you are trying to brace.
You can’t really keep your glutes on full blast and complete those movements. There has to be a constantly-adjusted tension tension through these tissues to allow you to go through their full lengths.