You can still use heavy training when force production is the limiting factor, right? Or if I'm trying to maintain the ability to produce force, but that's a volume-based decision. So if I'm trying to increase someone's force capabilities, and if I do 10 sets of three in a deadlift, that's a lot of volume for force production. If I do two or three sets, that might be enough to maintain that force production. You see the difference? So I'm making a volumetric change. So the strength of the stimulus is magnitude and the volume of that. And then that's what's going to drive the outcome. So it's not that you can't use heavier stuff with people that you're trying to make changes with. You just have to decide how much volume can I do that doesn't interfere with what I'm trying to capture otherwise.

So when we talk about leg length issues, it is rarely a true representation. It's usually a combination of influences—specifically, the position of the spine, the position of the pelvis, the position of the hips, and the change in the shapes of the bones—which will influence what appears to be a differential in leg length. So I rarely talk about it because I don't look at it from that perspective. It's just a resultant of the twists and turns that the body makes. And you can create them very easily. You can actually do an exercise that would create an apparent differential in the length of your legs. So it stands to reason that if you have one that you feel like you're identifying, you can undo it. We can manage it by understanding the influences and then overcoming them through exercise strategy.

Yeah, because, exactly. So, if I have somebody that can't lay on their left side, okay? And I throw them on the table and they can't, they don't have any AP expansion on that side. So they're more compressed A to P on the left side than they are on the right side. Now think about that shape laying on its side where the narrow side of the thorax is pointing down into the table and the rounder side is up. They're laying on a point. That's why they don't like to lay on their shoulder because they can't create the AP expansion shape change to even lay on their side. It's a dead giveaway for somebody that has AP compression. Camilla, you just got another test.

Okay, and is that because that posterior side is compressed?

Oh, good.

Great questions. Great questions, because I don't think that you're the only one that has these questions. So again, I appreciate you very much for doing this.

But if you understand the rules, it's like, how is this rule being applied? Right? That's what you want to recognize. And then that teaches you how the constraints behave. And if you understand the constraints, you understand the rules, then you understand how it's applied. And it just wraps. It's just exposures, exposures, exposures.

Okay. So this will emphasize more of a yielding strategy. Correct.

It gets so distributed that there's no increase in the force output. This can be risky because if I accidentally load a structure that is trying to distribute force, I may take it to its end constraint. Now I have a situation on my hands that I don't want to have. Because if I can't control it, and we've been going back and forth on email that a lot of people don't know—it's like, you asked me about injury potential. There you go. That's a situation that we really don't want to have, right? I don't want a massive amount of relative motion when the force output is very, very high, unless I have the capacity to distribute that safely and effectively. And that goes, that's a byproduct of exposures, experience and training. Okay. So do I want a situation? Do I want a situation for somebody that I'm trying to improve their capabilities of relative motions and then some measure of force production so they can remain effective in whatever activity that they want? Absolutely. But the rule is not, you have to do split squats or you have to do split stance. The rule is, I need to create the environment that allows relative motion under certain circumstances and I need to produce force under certain circumstances. The great thing about the split squat is that it gives me an element of both under certain circumstances. I can tweak that split squat in any number of ways—asymmetrical loads. We talk about offset loading on contralateral, ipsilateral sides. We talk about bilateral symmetrical loading. I can put a bar on your back. There's any number of ways that I can tweak this thing to bias me more towards force production or bias me more towards relative motions. So your rule of thumb is not, I need to do split squats. Your rule of thumb is I need to select exercises that fulfill my intent of am I restoring relative motion or am I producing force? Do you see it? Yes. So now it's just a matter of understanding, it's like which exercises fulfill that need.

And you will see the disconnect between what their perception of doing it correctly is and what your perception of doing it correctly is. So there's always that gap as well because again, we all have different perspectives and different levels of understanding. So as much as we would like everything to be perfect and the assumption is that somebody comes in and you say, how'd you do with your home exercises? And they go, great. And then you say, did you get them done two times a day every day? And they go, well, right? And then so you know that, okay, so compliance was not at peak. And then you say, show me your exercises as if you're doing them as if I'm not here. And then they show you what they're doing and you see the disconnect again. Right? And so there's always this process of refinement. And that's what I would encourage you to look at this as is process. It's like, how much change can you influence at any one time? Some of these people have adaptations that do take time to change.

You're going to say it. Go ahead. I want you to say it.

Yeah.

Gotcha.

I got a little bit of a movement limitation over there, and I can identify what it most likely is. And then I can say, I need to change your movement strategy. So when we talk about something like, again, split squat always pops into my head, it's like, well, when will I use an offset loaded split squat where I put weight in one hand and not in the other. And then where am I going to position that weight? So if I have somebody that I see across the gym and they're doing a split squat and I see that that knee deviate laterally as they descend into the split squat, well, there's my signal that that person doesn't have internal rotation available to them at that point and I want them to have it. Now I can say, okay, that's going to be your lead leg on a split squat, but I'm going to put a weight in the opposite hand. So a contralaterally loaded split squat, and it's going to help you turn into that hip. So now you're going to have a greater likelihood of being able to access that internal rotation. So ultimately, ultimately, that's what I want you to think about as you're learning and understanding these tests. It's like, yeah, it's really cool to throw somebody on the table and show the movement limitation, do something, and then make that movement limitation disappear, so to speak. But ultimately, what I want you to be able to do is go into the gym, just have people move, perform their exercise activities, and then be able to coach and cue them with that understanding.

Uh-huh.

I like that idea. I do like that idea. So I can talk about the special test they use, for example, the Hawkins Kennedy.

Probably a high school baseball player.

Yeah.

It should be a wide ISA.

Why? Why does that happen?

Good morning, happy Friday. I have neuro coffee in hand and it is perfect. All right. What a fabulous week. So this has been a great week. Got a lot done. Very, very busy, which is actually kind of cool considering the circumstances that we're all dealing with. So I'm feeling pretty good about stuff. We did get delayed here in Indiana a little bit more. So we were planning on opening up IFS this weekend. We're not going to be able to do that. So we got another couple of weeks delay but that doesn't mean we can't be productive and can't be successful. So let us rock on. I do have a question that I've been holding for a while. That would be a great way to kind of go into the weekend because it's a little bit off the beaten path from what we typically talk about when we're talking about structure and behaviors of movement and such. And this question comes from Carmine. And Carmen says, I appreciate the content you've continued to put out during these times. So thank you, Carmine. I have a question in regards to your model. George Box said, all models are wrong. Some are useful. What would you say are the limitations of your model and how do the limitations of your model influence your decision making? So thanks, Carmine, for this. This is really, really good. And thanks for mentioning George Box because it is now standard operating procedure to mention George Box in every circumstance where we're talking about models because of that quote. So I love that quote. So let's talk about this for a minute. So when we talk about the limitation on the model that I use, the greatest limitation is me because I'm the human involved in this. And so because I do make the decisions and I do Determine what I'm willing to utilize then I become that limitation and so so one of the things that we have to understand about being human is that We are emotionally driven so people think they make make decisions based on logic we tend to make Decisions based on emotion and then we superimpose logic on top of that to reinforce our emotionally driven decisions, which is which is kind of like a neat process. But if you're aware of that, then that helps a lot. We're also irrational. We can't see reality. And so we have to rely on modeling. So everything that we do Everything that we visualize or think we understand it tends to be a model because the complexity of reality is probably too overwhelming for us to even recognize or understand. And so even like your vision, the things that we physically see is merely a modeled representation because it's just way too complex to take in that detail. So as you said, all models are wrong. And so I understand that.

I have nothing but the best of intentions. I want to provide the best service I possibly can for every one of my clients. And because of that, I don't always listen to the evidence. It should guide, not dictate, educate, not mandate, direct, not decree, reinforce, not enforce.

Let's do it.

Yeah. Well, and it just makes your life so much easier because at some point you realize, I mean, there's a lot of stuff to learn. I can't learn everything about everything. So, okay, maybe you don't want to, my skill set isn't best for this person or this person likes hands-on therapy. Well, great. We'll send him to Jenny. Or they need just more forced recovery. Great, we'll send them to the recovery room. Like you have this network of specialists or other providers that we can talk to and have interactions with, and it gives better outcomes. At the end of the day, it's about the person or the athlete.

Right. So, let's just use that as our go-to now. Is that cool?

So I reached the point that the order to yield is done also with compression, like it is becoming.

Right. And then you're going to get, she's going to develop a sensitivity, which is what you don't want. Because you could resolve a mechanical problem. Let's just say you restore perfect mechanics, but you created a sensitivity. So now every time she accesses a certain space, she'll get pain even though there's no reason for her to have pain. And now she's going to be the kid with the bad back. She'll brand herself, oh, I have a bad back. It's not bad, just a little misguided. Good morning. Happy Thursday. I have neuro coffee in hand and it is perfect.

Breath holding. Under those circumstances, they're essentially just using the air like almost like another form of connective tissue behavior. It's just something that won't yield so that they can.

In a late foot representation, you have somebody whose center of gravity has gone forward. The heel is actually lightened under that circumstance. It might still be in contact with the ground, but because it's in contact with the ground, the muscles that would normally lift it up in a late representation don't lift it up. They just pull back against the toes.

The right side concentric on the anterior is centric on the posterior.