The Bill Hartman Podcast for The 16% Season 6 Number 10 Podcast
Correct. So consider the position and the turns. I'll walk you through using the left side. We'll examine the sacral position. First, I push the ilium forward and turn the sacrum away. This establishes a late propulsive strategy on this side—ERD ileum and counter-neutated sacrum. This is my lead leg in the split squat. Then I begin turning the sacrum toward the ilium, which is an ERD position. As I continue turning the sacrum, it eventually faces more forward relative to the ilium, creating an internally rotated, exhaled pelvic position. If I keep turning the sacrum, it moves back on the ilium, initiating the yielding action. So the sacrum progresses through this sequence: an externally rotated position, moves toward internal rotation, then ER again depending on how far I turn it. The sacrum must always move through this sequence of events. Does that make sense?
sacral movementpelvic rotationsplit squat biomechanicspropulsive strategyyielding strategy