Our work with elite athletes serves as the proving grounds for our methods. Most people don’t play professional sports. But if our methods help athletes at the highest levels, they can work for anyone.
After I posted that I remembered there was one hip flexion test I did not do well on — the one where you essentially do a good morning and try to get to 90 degrees with the spine neutral. I can get almost to 90 degrees on that one but my back rounds badly.
I’ll try not sending the hips back as far on my squat and see if that helps the buttwink.