So this depends on when you say the arm is behind the body. I would argue that it's not behind the body but rather away from the body. So it's moving towards external rotation under that circumstance.

That's where you're going to have to start. And this is where you break out all the old school stuff like, you know, foam rollers and crossballs and anything that's pokey and proddy and all that kind of stuff because first step is you got to reduce the muscle activity that's creating the interference in the first place.

But here's what should happen, Pat, is that if we got 20 people in a room, everybody's got 20 worldviews, everybody's got 20 perspectives. But what we should find over time is that all of our models start to converge towards something and that would be representative of truth. And then eventually, given enough time, which would be beyond our lifetimes most likely, is that we should start to see this convergence where everybody has a similar representation versus 20 totally different worldviews. And that's the goal, is to keep moving towards whatever that truth may be.

I shouldn't worry too much.

Because you do the right one at the right time, you get a great result. You do the wrong one at the wrong time, it's like...

That would be my thought. Yes, yes.

Okay.

I understand. I'm just trying to get the direction that you're pulling the band.

There's no guarantee that you're producing internal rotation by just squeezing your knees together. You have to consider where you are in space.

Understood, but it's like that ain't it. Muscles very mushy when it's relaxed.

Correct. Correct.

Every once in a while you get an intact joint that you can pop, but generally speaking, cadaver joints are not living human beings and therefore have different rules because they don't move. They're essentially doing nothing; they're just hanging out. But we can use them as a representation to find stuff, which is really interesting. We can get some relationships in regards to how things might move. The reality is that they're not human; they're dead and therefore have different rules. So researchers take them apart and look at the dry representations and say, 'Look, it's a class two lever.' Then they conclude, 'That makes total sense because if you look at the way it moves through...' and they debate, 'What's the elbow? Is that a class three? Is that a class two?'

Okay. Cool. It's just so we can see where your center of gravity goes here. So you're a narrow ISA. Congratulations.

Okay, now we have to start talking about how there is always a delay on the grounded side when one foot is on the ground and the other side is advancing. As we land on the ground and are in the ER representation with a counter-nutated sacrum, there is a delay more towards the sacral base because of the relationship between the sacrum and the ilium. As we move through middle propulsion, that delay must change its relative position. It moves from the sacrum base inferiorly toward the apex of the sacrum due to the necessary shape change in the pelvis for internal rotation to occur. Because the foot is secured to the ground and the other side is moving forward, a delay must exist somewhere. The goal is to have the connective tissue behavior that creates a yield at the stable base as propulsion is initiated, and as movement progresses through middle, this yield moves inferiorly toward the lower part of the pelvis. Problems arise when this doesn't happen—specifically when someone doesn't show the early representation of internal rotation yet is still performing, meaning they lack the necessary shape change for transitioning from ER to IR representation. This indicates that either their connective tissue behavior is compromised or they cannot make the required shape change. Alternatively, some people try to produce force in an ER representation with incorrect connective tissue behavior, which are the problems we commonly see.

Oh, this was the top down or bottom up question.

You see the contact and you see where the pressure is. So right now it feels like you're pushing yourself towards your hip with your arm. Do you understand? For those of you on the two-week sprint, this is your recovery weekend. Time to reflect. Look at your schedule. Make any changes that you need to. So you're always moving forward on all of your projects and making progress. Digging into today's Q&A. This is with Andrew. This is an extension of a conversation related to a video that I posted in regards to middle propulsion activities capturing hip internal rotation. So a quick review. Middle propulsion is this portion where we have an increasing element of internal rotation as we absorb forces typically from the ground. And then we're going to turn around at this point through middle P where we get this maximum force into the ground, that's max P. And then we get an increasing amount of internal rotation that's going from proximal to distal. So this is our first producing force absorbing and force producing element of propulsion. Andrew's question was about capturing this as that representation that I showed for a narrow ISA Sprinter, I believe, in the video. If you need to, you go to YouTube. It's on YouTube. You can watch it there. And then we talked a little bit about how we would do this in reference to a wide ISA individual because the starting conditions are a little bit different. We're going to do things a little bit differently in regards to how we're going to capture the internal rotation coming up from the ground and how we're going to produce it into the ground. So thank you Andrew for this question because I think it's again clarification is always great especially when you're new to concepts of how we look at these things from the early, middle and late propulsive strategies. So again thank you Andrew.

And you just make sure that you have a propulsive strategy with multiple bases of support and pretty much. Okay, so let's talk about this for a sec.

Okay.

Cause he would be a white.

Certainly an influence. Certainly an influence. But we tend to pull muscles out of context. You've got to understand that everything is moving together. And so if I start to move one end of a muscle away in a direction because other bony change, like bony position change is taking place. And then so I can hold this one, this end of a muscle still and move this one away and then bring this one over. Like an inch warm, boom, boom, boom. 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.

Yeah. Yeah.

Right? Because, you know, as far as late bloomers go, I'm a late bloomer. Like I spent a lot of time getting really, really good at what I do. And most people aren't willing to do that. Like people want to accelerate the process because they see what they perceive as somebody that is successful and they go, I'm going to do that. And they make the leap without understanding. It's like, I went through 30 years of process. Are you willing to do that? Are you willing to wait that long? Are you willing to invest that long? Right. And some people don't need that. Like some people can go faster than I did. And that's perfectly fine. I'm perfectly fine with that. Some people will take longer than I did. So again, it's like my success doesn't matter, right? How do you define it? Like you might look at me and you say, well, Bill is successful. And I would agree to a certain degree that I am, you know, I'm still working like everybody else is to get to where I want to go. But again, it's like my success doesn't really matter because you can't be me and I can't be you. So congratulations, you're special too, right? Mom always said you were special, right? But again, it's like, my story is not helpful. It's just entertainment. It might provide inspiration to what is possible. But it's not going to help somebody get somewhere. You've got to unfortunately do the work. You've got to find your own way to get there wherever there is and where you think it might be will probably change. How old are you? 25. Oh, good God. You got some time, my friend. You got some time. Yeah. Yeah. So, so, and all you have to do is like, you just move in a general direction. And sometimes the general direction becomes very, very specific, very quickly. And sometimes it doesn't. And like I said, sometimes you hit a lot of dead ends. You make some sharp turns and you make course corrections and, and eventually you end up somewhere else that you actually should be based on who you are, what you're capable of versus saying, Oh, this is the career path. You know? Do you know where I went to school? No. See, it doesn't matter, does it?

When you're moving, basically what I do is cue the extremity motion to ensure they're creating the turn as they're stepping through. Because again, I want this to be free to move if relative motion is the goal. Technically, you are constraining the pelvis. Even though the thorax is free to move, you're constraining the pelvis with the belt. There's no way to not create a constraint and drag weight at the same time. You just have to pick your battles and say, 'I'm willing to constrain this.' So if you've got somebody with more AP compression on the left side than the right, a leftward sled drag is a great solution. The belt itself pushes against the pelvis much like lying on the ground would. You get the AP compression on that side as I'm pushing into it, creating lateral compression on the right side while pushing into the left. Then I get my AP compression, which drives my IR into the ground. That's actually a nice way to recapture pelvic shape change. You don't need a sled for this. You can just hook somebody up to a cable and do a sidestep action to get the same effect.

I'm working with a client. She's 65 to 66. A retired nurse with a whole laundry list of issues. The overall goal is to maintain her autonomy at home and to lose weight. She has a torn meniscus on the left knee, a history of back pain that is gone since we started working together. The main problem is in her feet. She has arthritis in both feet, specifically in the sole, and Morton's toe and bunions on both feet. Recently, she has been complaining of medial shin and medial foot pain.

So now think about how much space he has to turn. Okay. Not a lot, right? But there is some, but there is some. So now you got to start thinking angles. And so you got to think about stance. All right. So I know where I can, where I can access some space. I could probably do a really, really short stagger with a wider stance. And now I can start to create a chop. That's going to be a little bit more, almost in plane with the body, right? Because he doesn't have a big space out here, but I can create an angle that's going to start to promote some of the internal rotation that I'm going to need.

Yeah. It's like the thinking is, 'Oh, it's like this imaginary frontal plane thing. It's a turn.' But I can't tape her spine, though I suppose you could. It'd be a big piece of tape that would go—you could do it. Like seriously, think about this. You could probably do it. It would just be a really big piece of tape.

I just saw that. I just saw it recently too. It was really bad. I thought somebody was hanging from a bar.

If I am on a flatter turn, am I on the oblique based on my helical angle under those circumstances?

Well, yeah, that I realized.

As I continue to move forward toward the middle representation, which is going to be the IR representation of the pelvis, which is going to be a nutated sacrum. Instead of the sacrum base producing that yield, it's going to move inferiorly because I have a change in the orientation of the sacrum. But because the foot's on the ground, that side always has to move slower than the other side in a perfect world. So the yield is still on the same side, but its location, the way that the distribution of the yield is applied is what changes.