So when you qualify something like that, when you say specifically with extension, what do you mean?

We'll see. You might be way ahead.

Yeah, it is. It's kind of one of those vague little things that they go, oh, this is special. It's not special.

Does that make sense?

Let's just do it, because then it's easy to see. All right.

So I guess I'm not following your description then. So you're saying the toe doesn't touch the ground?

Anytime, okay. The implement. Okay, is the guts. Do you understand that? Okay, so wherever that implement goes, the guts are gonna follow. So there's a slight delay because it's water, right? So if I go up like this, my body turns, my guts have a little bit of a delay and then they follow. As I go into the chopping action, my body goes, there's a slight delay and then there's the wave of the guts that follows. You understand that? Okay, if I don't release the ball, I extend the duration of the slow down.

As soon as they start moving forward, they're going to start pushing back, right?

Yeah, you don't want to be necessarily that meditative, right?

But you know, you know, you're not going to let go. Yeah. Okay. Yeah. Yeah. So the difference between the two is I start slowing down sooner. So if I'm going to release, I don't have to slow down at all. If I know I'm not going to release, I start slowing the ball down sooner. So the duration of the yield is extended, but the force of the yield is lessened. So that's the deal.

I was hoping to run through a case study for an athlete I had come in for an evaluation a couple of weeks ago. The athlete is a freshman in high school who came to me with a diagnosis of posteromedial tibial stress syndrome. The symptoms started in mid-February as she was transitioning from swimming to track. At one point, she couldn't walk between classes without pain, which persisted for about a month and a half before seeing a doctor. She had been using rest, heat, and compression with the athletic trainer at school, but her condition wasn't improving. She finally came to me about two weeks ago. Assessment findings include narrow ISA, with significant lateral shift over the right side. Her symptoms are on the right side, and her center of gravity is definitely over that right foot. The only other finding was extreme tenderness along the tibial crest.

That's the important thing to recognize. So again, it's like if I put you in an early representation of just taking a step forward, right? You don't have access to full range of motion under certain circumstances. This goes back to our discussion last week about the full and the normal. There is no position where all of those exist at any one time. It's as you're moving that the shape change can take place and it allows what we have represented as a full excursion to take place. So if you're in an early representation, for you to place yourself there, you have to have a significant external rotation measure available, and then you have to be able to superimpose an element of internal rotation on that. You will have internal rotation, but it will not be the maximal representation of internal rotation under any circumstance. So if you were stepping forward, that leg is positioned towards external rotation as it's about to strike the ground, which means you've got to have a lot of external rotation. This is going to be towards the extreme of the average. If I'm a narrow stance stance, like a crazy narrow stance, that external rotation for me is actually more than it would be for the average Joe. So I would expect to have more external rotation available under those circumstances. Therefore, I would have lesser internal rotation, but I should still have it. As I move towards middle, there has to be a shape change that takes place that allows that internal rotation to increase by my measure. Which means that external rotation and internal rotation are becoming more similar. That means that the external rotation measure will lessen, and the internal rotation measure will increase because that's what the shape change should do. So as I go towards any representation that would constitute like middle propulsion, a sticking point in a squat, any of those measures, I should see an increase in the internal rotation relative to the external rotation. So the external rotation should drop off, and the internal rotation will be more represented because they're becoming more and more the same. They're not separate as much as before. As I move towards a later representation, I should again see the increasing external rotation representation and a progressive drop off of internal rotation.

Okay.

That is correct, sir. Hands are just a little weird because of the capacity to do that.

I wouldn't do a heel to butt in that position. I would always do it in supine. You have too much interference in regards to heel to butt in prone. I would say I would never do any measurements in prone. I just don't do any; they're more like checks and balances for me versus the decision makers.

Right. So why does it stop?

Wonderful. Great. I'm happy to ask.

Slide down so I can get as close to his feet as possible because you can kind of see where his ankles are. Ah, there we go. Awesome. Perfect. Okay. Golden.

As soon as I take you out of that context, I've just changed everything about the strategy that you would have to use because I have reoriented gravity. I have actually increased the force demands upon you. And then I'm going to move you into a context where we now have seven components of force to deal with, right? So the magnitude of the force matters, the rate of force application matters. So again, we have multiple influences now that we have to account for as to what strategy you will utilize because as you move into higher and higher force production, you will lose relative motion. It is inevitable because you cannot produce a higher peak force with relative motion. Motion has to actually stop for you to apply that force into the ground. Over what duration do we need to apply this force? For comparison, consider a max effort squat. So I put 400 pounds on your back and you perform a squat. The duration of your peak force output is going to increase because it takes a little longer to get through that phase of peak force. If you were using half of that weight performing the same activity, it would be a much smaller representation based on time. Because you can move that weight much more quickly. You can still be very, very forceful, but because the acceleration is higher, it's a shorter duration where you would be exposed to that peak force. So it requires a very specific context. This might be something that a lot of people might not recognize is because they just make an assumption like oh, you have internal rotation now, so now you have the capacity to do this. Not necessarily. And this becomes problematic when you're working in the athletic realm because physical structure is going to determine how you apply forces to the ground, what durations you have available to you. For example, a narrow ISA individual has a very small window of opportunity to apply force into the ground because they don't have the shape change that produces maximum force into the ground. So take a high jumper, like a really good high jumper. If they apply force into the ground too long, they dampen.

Yeah, go ahead. Keep going. Sorry. You're fine.

Zach. Morning. Great. So actually Monica's questions will be a good segue into mine. I think it's going to be very similar. So exercise selection based off the chess board, going off what you said that the initial chess board is there to show you the space that you have available to you in that present moment. And then also to kind of get an idea of where you are in space. So like where you want to drive the expansion, the overcoming strategies, is the goal with the setup to be like as close to the border or like your available end range so that, let's say we're doing just like a static breathing, is the goal to be as close to that end range of what you can do without orienting as possible so that any subsequent breaths kind of like drive like a wave of expansion and are basically expanding the joints right on that limit of what you have. Or I'm trying to figure out the mechanics of the breath and influencing the change that you're getting to then unlock your potential for the next exercise.

It does. So in that description, at least the last one, it sounds like we're mainly thinking about where the force contacts the body.

Yep. Got it.

Yes.

If you look at the original definition of closed chain and open chain that the guy's name is Shindler that came up with that concept, it's pretty big. And what he says is when the extremity meets a significant resistance. And so that's what creates the reversibility of the influence. It's like, is it coming from proximal to distal? That would be closed chain, right? If it comes from distal to proximal, that would be open chain.

So number one, limited turning capability to begin with based on archetype. They're going to initiate after the diaphragmatic compensatory strategy to take the breath in, you're going to see a DR compression. So right away, you know where you're going to have to strip away, but they're going to lose both. So they're going to lose ERs and IRs. They're going to use orientations to create their internal rotation. And so again, this is why they start to get that lower cervical spine stuff because the thorax is anteriorly oriented and the spine is pushing downward, like I said, in that IR. Because remember IR is down, ER is up under these circumstances. And so all they're doing is putting downward pressure. You don't want to look at this in isolation. I would encourage you to consider the entire.

Well, would there be any tension on the bow string under those circumstances?

Just put them on the spot. I saw his reaction.

Oh, I got you. Can we do a demonstration? Yeah. Okay. Take your fingertips and put them on your sternum. Okay. So what I want you to do is push your sternum in. Then squeeze your shoulder blades together, but don't let your sternum pop back out. Did you feel yourself go forward? There you go. Now do the same thing at the pelvis.

So formal.