it's very, very useful because you'll be able to say, if I do this activity, I'll get the return on investment that I'm trying to, but I have this interference. And you go, but wait a minute, but what if we change the rate over here? And I say, now I'm doing, instead of doing like a slower tempo split squat, then maybe I'm doing something that's a little bit more oscillatory and I eliminate the thing that was gonna create interference that's associated with that activity. So that's one of the advantages of looking at things under these circumstances is because I can categorize the primary influence and then I can also identify secondary consequences. Because what a lot of people do is they get the primary influence correct. That's easy. It's the secondary consequences that will come back and create the problems.

They have to lean backwards. They're leaning backwards to get the bar up into position, right?

That's why you can't walk backwards.

Absolutely. And I want to tell you that a really smart guy told me or I read that he said, I didn't, you know, he didn't tell me specifically that all models are wrong, but some are useful.

Yep. Then where's the pelvis over the foot?

Thank you so much.

Yeah. She's up here.

Yeah.

Yeah. Okay. Shane was a little bit different. He's a different animal. From a physical structure standpoint, it was just to have this interesting body and very explosive for a man. But take somebody like that, typically the physical structure is just not going to allow them to access the mobility that you would need for what we would consider a pretty deep squat kind of thing. And some people just have a pelvic structure that does not allow that much hip range of motion. You'll get narrow hip people that don't have strong internal rotation mobility. So they'll never, no matter how hard they work in the weight room, they're never going to build a bunch of muscle. They just can't because they can't produce enough pressure, enough force to make those changes. You get people that are wide that are never going to have this pretty deep squat. What you may find is that you can add external rotation by reducing the compressive forces necessary to squat. What's another way to access external rotation that might allow them to access greater descent, but it's probably not going to be the prettiest squat.

I won't disagree with that. I think your point is correct.

The apex is the pointy part of the sacrum.

Elevation, elevation is AP compression, right?

It's not possible. I see it. If you and I are standing next to each other and we're looking, Andrew Green is standing right in front of us. Okay. You and I are standing next to each other, Andrew Green standing in front of us. Do you realize the fact that what you see and what I see are two totally different representations of Andrew Green? Yeah.

Okay.

Okay. If I was going to roll back in the opposite direction that from where I started, so I'm going to go back to the starting position. What are you going to lead with? Are you going to lead with the right posterior rib cage? Are you going to lead with the left posterior rib cage?

But during early, wouldn't you still get some dorsal rostral expansion? Yeah, but we're not talking about early, we're talking about middle. Okay, so can you start with early, please? So you would get the dorsal rostral expansion, the scap would externally rotate, and you would get posterior. So I'm thinking it's going to tip posteriorly and the glenad will orient out because it's following the shape of the thorax.

Not too much.

Yeah.

Okay. So all your pulls, your pushes, your chops, your lifts, all that stuff's going to be in that space.

Connective tissue provides rate-dependent behavior. That's the easiest way to see it. When you're moving quickly, like really high velocity, throwing a ball, kicking a ball, sprinting, muscles can't change shape fast enough for you to move that quickly. However, connective tissues can store and release a lot of energy and that moves a heck of a lot faster than any muscle can. Muscles have gotten too much credit for what we do when it's actually connective tissue behaviors that produce a lot of this. So if you look at EMG, Grace, EMG, they get wild and crazy about EMG about what muscles do. And they say that, oh, such as such a muscle is quiet when you're doing some sort of activity. But yet, the connective tissue that's associated with that is moving because it has to, because that's how we do stuff. And then obviously, different recruitment of motor units. So you have rate coding, and you have synchronization, and you have intramuscular coordination, and intermuscular coordination, and all those things that are factors in how the muscles behave. But they're driving the tuning, Austin Ulrich full credit. They're driving the tuning of the connective tissues to get the connective tissues to move either quickly or more stiffly depending on the activity in question. When a joint changes its position, the muscles have to change their orientation because if I have a concentrically oriented muscle, there's no pressure. I can't change the pressure in that area. Therefore there would be no movement. So we're back to Jordan's question about trying to get dorsiflexion on this kid. It's like, okay, you can yank and pull on that, on that ankle all day long, that muscle that he's trying to influence does not want to change shape for a reason. And it's going to go, nope, not changing. Yank and pull all day long, it'll never change. So again, I can't change the expansion in that area. That's muscle behavior. Yeah, it also influences how much tension there would be in the connective tissues under that circumstance. So from a rate standpoint, that muscle is on right away, high rate stiff tissues too. If that kid was doing a box jump, he jumps off the box, he lands on the ground, muscle still concentrically oriented, but because there's more time to load the connective tissues, those connective tissues will elongate. That's a yield. So that's a change in the actual storage and release of energy in the connective tissues, which is a length change in the connective tissues. But the muscle orientation is exactly the same. It's still concentrically oriented under that circumstance. Because if it is concentrically oriented, my ankle would move more and I would reduce the tension on the connective tissues. I would distribute that force and it would dampen and it would land in softly. Do you see the difference in the behavior of the muscle versus the connective tissues?

Yeah, Grace, I was totally doing the same thing you were doing with overcoaching. I just kind of shut my mouth. Don't clients look at me now. I'm just like, just keep going. You'll figure it out.

Yeah.

Expansion of the yield.

Right and then I've seen compression in the mid-back and those athletes take their entire thorax, which looks like the letter C, like they're super arched through the mid-back. They might be able to get the bar behind the head but usually it's in line with their head. Then I'm wondering what does compression higher up on the thorax look like in terms of an overhead press?

I see what you mean. Okay. All right. Yeah.

That's George Box.

Where is the pelvis over the foot?

Let me know how it was with your people, okay?

Yeah. And so it looks like she's hiding a hundred dollar bill, right? So let's think about this for a second. You've got an ERD representation, approximately. She is going to create an IR. So she's going to have a little bit of the outward curve to the femur?

Center of gravity is towards the right heel.