SPEAKER_04 14:20–17:00
So here's the thing that you have to respect when you go from a standing representation to a supine representation on the table, because they're not the same. So there's a couple of potential things that could happen. If I have somebody that is oriented into extra rotation, that's how they create it. Segments are jammed together, so there's no relative motion in the thorax or pelvis. But they can orient the sockets outward to create a field of external rotation. This isn't relative motion, but it's still external rotation. Then they use another orientation—anti-orientation of the pelvis and anti-orientation of the thorax—to capture force downward. That's why external rotation is up, internal rotation is down—simple. But when they lie down on the table, two things can happen. First, they might have so much anti-orientation that they're in the same orientation as in standing, which steals their external rotation on the table. However, if they land on the table and the orientations tip backward, it magnifies external rotations. Now they get a straight leg raise they probably shouldn't have, or shoulder flexion they shouldn't have, or traditional external rotation measures they shouldn't't have. So you see someone with 120 degrees of shoulder external rotation and 10 degrees of shoulder internal rotation on the table. See what I'm getting at? Again, that's what happens. When we think about sequencing, the goal is to restore relative motion in most cases where we're working with people in pain, so we can distribute forces instead of making them focal like we would for performance. When we're trying to restore relative motions, the way to strip away these compensations is in the same sequence they were applied. For example, with a wide inter-scapular abduction (ISA), the last compensatory strategy in the thorax is often posterior lower compression. If we don't address that posterior lower compression first, that's our initial external rotation representation—like when reaching upward. We have to restore that first to expand the external rotation field. Then we can address more anterior strategies to restore internal rotations. It's not as simple as it seems. To simplify, we prioritize orientations first, because without restoring the capacity to reorient the pelvis forward and backward, there's no shot at restoring relative motions. You can't do it. When segments are oriented that way, everything's compressed into one unit, so there's no potential to restore the eccentric orientation required. So orientations first, external rotation somewhere in the sequence it was laid down, then internal rotation superimposed on top. If we're looking at a wide ISA with anti-orientation, we restore the capacity to move the pelvis forward and backward through space—essentially teaching posterior orientation. We expand the external rotation field from the bottom up, as that's how the lungs fill. We restore it from the bottom up—starting with the posterior lower thorax to get expansion there—then we can go after something like pump handle to get internal rotation. Does that make sense?
orientation mechanicsexternal rotation fieldrelative motion restorationsupine vs standing assessmentsequencing of compensations