So you may have a situation where she can't go from the yield, which is the energy storing position to the energy releasing position.

Should there be a reason for everything that you do?

OK. Do you mind standing up for a sec? No. So just stand with feet, hip width, and that kind of thing? Yeah, you're upside down, but you know, it'll still work for me. So if your weight bearing is even, okay, let's just say you're sort of in the middle, okay? Now, shift your whole center of gravity. Don't lose your heels, but shift your whole center of gravity as far forward as you can. Okay. And drive your pelvis forward, not just your chest and your head. Yeah. So, okay. You feel all that stuff on the backside starting to get active. Yeah.

Yeah. I'm good. Okay. So this is a straight plane representation problem. Because people want to look at this line. Instead of looking at what's going on from a relative standpoint: Is the sacrum moving in the leftward turn relative to where it was before? Yes, via the yielding action of the connected tissues based on the position. If I was using the zero line, is it facing forward? No. It can't. I'm not letting it, but I'm not trying to do that. I'm trying to create the relative motion position that I can use to create the turn that I'm going to produce. See the difference.

Yeah, so okay, the typical bow-legged individual, if you will, okay? That would be referred to as varus. That started as tibial femoral ER. So that's an ER tibia relative to the femur. And then the femur kept twisting outward and it hit the constraint of the knee. It can no longer create the differential. So the whole system moves as one now. So the whole leg is turning outward, right? As the center of gravity moves forward because of the amount of muscle activity that's cranking that sucker into ER. You see it?

Well again, the sensation is kind of dependent on just the tension on the tissues, right? I mean you're going to feel it whether it's yielding or not, that's a question mark.

Sorry, I got you.

Okay. So do they have normal hip range of motion?

In the split stance representation, look where the tibia is going to fall. So the tibia is going to fall behind or it's going to fall in front. So I'm playing with terms here. What you might want to reorganize your question to ask is: do I want their feet symmetrical? That's probably what you would want to think about making a change, right? Because I need to move in and out of these positions. Rotation still has a max propulsion moment. When you're looking at peak forces into the ground, every thrower has a max propulsion moment into the ground that is brief. So if I'm a baseball pitcher who can throw 95 miles per hour, or a quarterback throwing at maximum velocity, the point of maximum propulsion is the smallest possible duration with the highest possible force production. It happens very, very quickly. That's what we're training when we're talking about these throwers. It's not just about raising numbers and saying you're now stronger, but I just held your internal rotation too long and took away your velocity because I took the space you needed to produce external rotation.

Okay, did you go backwards or did you go forwards?

Absolutely right.

Yeah, I'm with you, man.

Yeah.

Down and forward on the left. If you pick up a massive amount of ER, she's still pressing down and forward on the left. You didn't get her to come back on the left-hand side. The spine says, hey, this pelvis isn't moving. The sacrum is not moving relative to the ilium, but I'm going to become the sacrum. And it's going to, you see it? So you make the little adjustment at the knee, you can alleviate the symptom, but like I said, you're not resolving the problem. Think about where the pressure is coming from. Think about the sequence of adaptation just on the left side. Like first move left side.

I don't know what you'd call it, but I'm guessing it's Patella Baja.

Yep.

So if literally, OK.

You see it? Yeah, that's helpful.

So now is that a sequence of foot cues that for a wide or narrow stance gets me from like end game? If it works all the way back to starting point, or is that just like one?

Well, I feel like it would be wrong for me to not have a question related to change direction for this morning.

Where are we?

So let's think about this for a second. Do you understand the movement of the sacrum through the excursion?

He's looking in that direction because that's where he wants everything to go. You can see that this left hand relative to the ground, his left hand is higher. And all that is is he's literally showing you, here's my strategy to push everything forward.

A what squad?

It is the question, my friend. Which direction is gravity working on this barbell? So do you think he's actually pushing the barbell away from his center of gravity? Wouldn't that be difficult to do? So he's changing his orientation relative to the weight, moving away from the load. He's moving away from the load on the right side, which would mean the right side is coming back. So it's kind of like the right shift on a squat.

I typically breathe out on the way down.

My point is that I have to control axial orientation, pelvic orientation, hip representation, knee, and then the foot and the ankle. All of that stuff is still moving in a campo deadlift, but it moves a lot less at the knee and at the foot. So it's going to be a little bit easier for me to influence the proximal orientation because I don't have to worry as much about knee position or foot position, as they are moving as I am moving. When you're trying to teach somebody a position, is it best to do it at high speed with a full range of motion? You see, I'm getting that—it's like, okay, how do I need to set this up to get the greatest return on investment? If I need to constrain an element of position, I'll teach people static activities. I'll say, 'I want you to stay in this position, I want you to hold this position so you can sense what I want you to do.' Remember how we were talking about setting people up at the end of the exercise so they knew where they were supposed to go?

Does that help you?

Okay, because I'm filling in the gap. Let's just say that she's got 60% of IR capability on the right side versus the left. I'm going to take the cane and apply a force into the ground. Now, is it going to fill the 40%? No. What's the percentage? What is the desired percentage of IR force delivered by a cane under all circumstances to eliminate a gate deficit? Do you know what that answer is? No. It's about 5%. Seriously, you can find it; you just have to look really hard. It's probably in one paper in the whole wide world. It's about a 5% deficit. And I'm talking about like a point contact, a single point contact. Like they give you the quad canes and stuff like that. You can put more pressure on those, which is why they exist. So you can deliver more, but that's going to give you upwards of like 10 to 15% probably by contact. But the point is, I'm going to use my unaffected side to fill the deficit of IR that she lacks on that side. You get it? Yeah, I think so. It's pretty straightforward. What you recognize is like, 'oh wait, we're just talking about positions like we always talk about.' Yes. So this is why, I'm going to pat myself on the back. This is why the model is useful is because it doesn't matter what we're talking about. It doesn't matter if we're talking about a stroke, a sprained ankle, back pain, or a broken nose. The model is useful across contexts. That means it's closer to the truth. So if you understand the model, all you have to do is recognize: what are the constraints? What is the deficit? What do I have available to work with? How can I use the other side to compensate for that? If I have a permanent constraint change, what are you going to do? Well, I have to borrow. That's where you start to add stuff. AFO, SI belt, cane. Get it?

Okay, yay.