Okay, so this goes back to Zach's question at the very beginning of the call where we're talking about the differential between the distal radius and the proximal radius. It's like you kind of get the same thing. It's like, yeah, I'm squeezing my knees together, but am I just increasing the differential between the proximal hip and the distal femur? If I have too much external rotation approximately, you're not gonna get the internal rotation into the pelvis. It's not gonna happen. But you can attend to this. You can actually see it happen in people that cannot internally rotate. Like you watch them at the hip, you can watch their hips as you put something between their knees and you'll see them externally rotate. You'll see them try to rock their pelvis back into posterior orientation right away. Just shut it down and start over.

Muscles are very mushy when relaxed.

What are you trying to achieve? What is your goal?

I think the ankle is supposed to be like a class two lever. It has to do with the moment arm and the position of the fulcrum and then the position of the load, right?

OK, so you've got a vertical axis relative to the Earth. And based on your helical orientation of your narrow ISA, your helix is very close to that vertical.

To follow up on Colin's question, you said that if the force doesn't travel down to the apex of the sacrum, then the pelvis would have to orient to produce IR from an IR position.

Say it to her.

Like if you had a pure vertical force going on. Right. Okay.

You would have the opposite leg almost controlling the other.

Okay.

I like the ownership.

So a muscle can behave that way. So just because, and we're simplifying the concept here, just say that you have a muscle that has one attachment at each end. If I fix this attachment, this moves relative to the other attachment. Okay. If I fix this one, it moves this way. And if I can go like that, right? Or I can go like that, or I can bring them both together, right? And so you have to, the traditional, again, the traditional viewpoints based on dead guy anatomy, that's where origins and insertions came from. Okay. Origins and insertions is an inaccurate representation of muscle behavior.

All right.

Right? Well, it's what I'm saying. It's like, I get a lot of questions from potential students. They say, 'Where should I go to physical therapy school?' And so where can you get in? Because it doesn't matter. Take the most famous physical therapist there is; most people don't know where they went to school. Just because they went to school there doesn't mean you should go to school there. It just means go to school if you need that credential. Probably not what you wanted to hear, right?

Any compensation like a compensatory turn that might happen just like you would in a supine cross connect with a crossover with potentially yes, but again keep in mind that you're already very constrained. Then the question is: okay, if I'm going to use a compensatory strategy in this constrained atmosphere, am I just making refrigerator turns or am I truly capturing some of the relative motion? Again, you may need to do something prior to and then use the sled drag to reinforce that progression. That's the call that you have to make as the good coach and the good therapist: okay, can I just throw you onto a sled and see what happens? Okay, did I get the change that I want? Awesome. If you didn't, then okay, I might need to capture something else first.

Medial.

You understand?

Yeah. You look like beach volleyball players with all the colored tape on them, you know?

OK, so if I compress you max, let's just say that I just crush you, right? Like it's Terminator. It's the end of Terminator. She pushes the button and the press comes down, except I'm going sideways, right? I'm squeezing your front to back. You got no space, right? Where's the ER? Oh, okay. But like, if we're talking about like the joint position, we're talking about shoulders here, right? Cause we're talking about, okay. So where's the ER? I mean it's just upsides it's like up and out it's like up and out right so so literally sockets up right so literally so here's what has to happen so so the resting position of the glenoid is is was down forward and out so it's kind of like that right okay and so if I shrug my shoulders I'm going to do I'm gonna turn them out even more, elevate them and tip them up, right? That's how I find my ER. And then my neck has to allow the thorax to anteriorly orient. And so that's why this becomes like, this is when you see the shoulders and the neck, it's like, we talk about the neck a lot. We don't talk about the glenoid too much, but literally you're twisting the glenoid out up. And so it faces upward to get the ER representation. Yeah.

OK, so it'd be tipped on the oblique axis, which would bring the right side forward, which would take away the ER measure on the right side.

But trying to produce force into the ground.

It's sustained. It's a sustained yield.

Oh, for sure.

Right. Because you, they got smushed from the front first, they got smushed from the back second. Right.

Okay. Try that and then do a body weight split squat.

First of all, dirty word.

Like because it's her passion.

So he's just pinching the shoulder blades together to try to get that to lay the arm back.

Correct. OK. So let's talk about this, because this is useful. Do you mind doing the hand thing again? OK. Remember what early propulsion represents? It's an expanded, it's a yielded representation, right? In ER, it's the yield, right? So that's an expanded version of ER, okay? The way I create that is to make space between the scapula and the spine. Okay, so do that on the left side, make the space between the scapula and the spine bigger, not by sliding your hand forward, but by moving the rib cage back and turning the spine, okay?

Right.