Yeah, like keeping it relatively basic, like if you were to start with an upper or lower body.

Right.

Okay. All right. So, what kind of foot you got going there? You got a yard foot or an iron foot?

Well, okay. So think about it. If I can't create the delay strategy of the pelvis as I'm bending forward, if I can't create the delay, the bottom of a toe touch is early because I need a strategy at the bottom for me to touch my toes. If I can't create a delay strategy of any kind, that means I can't create the posterior expansion and I try to bend forward. What would happen if I try to go forward?

Okay. And so that's, so literally what the arm bar is is a representation of that.

Sometimes you have to create the gradient first and then all of the manual stuff that, again, the deeper manual stuff that would be skeletal in its response works so much better. You've got to give yourself an opportunity; no gradient, no change.

Okay. So in terms of connective tissues, it's not just rate of loading. You have other things that you have to look at to determine this seven magnitude rate of loading and okay.

What is their potential for change?

Yep.

And then you get the really extreme varus people and their arches are really high. So if I push the center of gravity forward and it goes down and in, I'm gonna get a valgus representation at the knee most often. If I keep pushing that forward, they have to start to externally rotate again to move their axial skeleton between their feet and it turns it back outward. So that's the difference. So the representation at the knee is the same. What happens is you get more external rotation on a varus looking knee than you do on the valgus looking knee. There's just more external rotation.

Okay. So what advice would you give to someone who just cannot read those big books, whatever novels or something? Because I see everyone reading like thick novels, but I just not textbooks, but novels or some other books. Like I see so many people reading like thick books, but I just can't. Like I can watch videos for long, but texts are not so down.

Okay. There's space started deeper front to back, not wider side to side. So hang on. Extreme representation. Narrow ISA (Inferior Segment Alignment) is anterior-posterior, wide ISA is okay. The overlap between the two. So if I compress the narrow, if I push back here and I push this forward, the space is gonna compress into the overlap. So it's gonna be in this box right here. Narrows can go, the helical angle would be this way on the narrow. It's gonna be this way on the wide. Do you see that? We're looking top down. I'm standing above them, looking down on their feet. So if I compress this anterior, so it goes back this way, and I compress posterior, it goes this way. They don't get wider. Their helical angle doesn't change. It's just the space gets compressed anterior and posterior. Okay. This person's already compressed anterior-posterior, but they had a wider helical angle to begin with. So they can't go this way, but they can go that way. Okay. So Ian's space is right there. Misha's space is right there. Okay. Does that make sense? And again, it's an extreme representation for a fact, but that's basically the shape that you have available. Does that help you, Ivan?

No. So I'm going to exaggerate a piece of this to help you. Okay. So hold your arm up there again, boss. Now turn your palm so it faces backwards. Your thumb's going to point out to the right. Cool. Did you feel the turn? So that's a turn. There's no straight plane. Like literally you turned, you literally turned everything in sequence to get your hand into a position in space.

I think so. So with the weight shifted forward anteriorly, is that representative of an anterior pelvic orientation?

Yeah.

Do I need to? Sorry. That's not the thing. No problem. into consideration when loading. Is it going to be the same thing? Is it going to be creating a situation that I don't want if I do that on both sides? Did I have one side that's like an EQI, like an asymmetric, almost an EQI? Would that be a better fit for one side or the other? I'm just trying to figure out best way to load.

To a degree, yes. Again, if I'm the guy applying the forces, and I'm trying to induce the shape change manually, that's totally different from you doing it actively. You have to have some sort of access to a position in movement. Again, take somebody that is fully compressed, very late representation, end game, and then ask them to do an active intervention under those circumstances. It's very, very difficult to do. You need to position the foot and put the force into the ground. I have to have external rotation to get their internal rotation to produce force. Good morning. Happy Tuesday. I have neuro coffee in hand and it is perfect. We can dig straight into today's Q&A. This was with Lalo. Lalo works with sprinters. Some of those guys have some pain-related issues, and so he's monitoring them over time, and he's collecting some data on ranges of motion. He's identified some deficits. One of the deficits you're typically going to see with sprinters in general is that they're going to lack hip internal rotation. The question is, how much of that do we need to give them back to protect them, allowing them to produce force? Because we're always going to use external rotation to position ourselves. We're going to use internal rotation for force production. And so we talked a little bit about key performance indicators. Lalo's using a vertical jump, actually, to help monitor some of these things. And we talked about how we can integrate that. We covered a lot of ground in regards to external rotation for position, internal rotation for force production, key performance indicators, and then how to monitor over time. So again, probably useful for a lot of you people that work with people that have to run really, really fast. If you would like to participate in a 15-minute consultation, please go to askbillhartman@gmail.com. Put '15-minute consultation' in the subject line so I don't delete it. We will arrange that at our mutual convenience. Everybody have an outstanding Tuesday and I'll see you there.

So the people that descend into a squat, the whole pelvis moves as a single segment, and then you see this just progressive, it'll look like a big C curve. That's somebody that's just bending their spine forward to maintain their center of gravity far enough forward over their feet that they don't fall back.

Yeah, yeah.

Yeah. That's why the representations are consistent. ER is expansion. It's movement towards that space. IR is compression that slows me down. So like literally within the knee, you've got that full representation.

Right.

For sure. Yeah.

At what point are you talking about it? Because that's what matters. So if I am on my side and initiating the roll, the shape of the axial skeleton is still an early representation. It doesn't mean that there's no late coming. It just means that as I'm on my side and initiating that roll, there is the early representation of that as the leg goes across. Because the leg is moving faster than the pelvis is. So the pelvis is moving slower. How does it move slower than the leg? I have to create the delay, don't I? As you step over with the leg, and so we're rolling left to right, as I step over with the leg, and then the foot makes contact with the ground, the foot stops moving, and then the pelvis starts to move, and then I'm creating the overcoming against the sacrum to create the turn. Now the delay drops from the top hip to the bottom hip, because I have to slow down the downside, because it's stuck to the ground. So you have to look at where you are in the roll to identify what strategy you're talking about.

Sweet, I love those.

And the hip is easier. It's more of a true representation because it's harder to cheat. What's heavier?

So under the circumstances, as far as a solution is concerned, we need to talk a little bit about that before we go. You still want to try to capture the relative motions. You're going to have to rely on some way to create some shape change. Wide ISAs respond really, really well to sideline activities, rolling and things like that to create the shape change that you want. So they can create a delay strategy laying on their side that they might not be able to create when they're upright or when they're supine. So think about all the rolling activities or stepping activities—that's just walking, laying on your side, right? You can start to create those and they tend to be fairly comfortable for most people. And again, it's like they don't have to worry about the protruding belly when they're laying on their side nearly as much as when they're upright or laying on their back, because they're going to spread out side to side when they lay on their back, which is where they already are in most circumstances. Lay them on their side, let gravity squeeze them and try to create some expansion that way. That's where you're going to probably buy your best relative motions. Okay.

Yeah, actually I have a question that's been bugging me. So I've heard you in the past talk about the lower posterior compressive strategies, and how they both happen in both archetypes, but they usually happen at different times. But I think you've said that it happens later with the wide, with the narrow, but I'm confused.

They'll yield. The question is: where? Okay, do you want them to yield at the first metatarsal phalangeal joint?

Okay, great. So I just wanted to make sure I was kind of going after the right things. I've been, he's also pretty compressed dorsal rostral as well.

Because that sort of relates to how we talk about delivering power and punches. Try not to focus so much on moving the mass of the fists, say, but more on waving the energy up from the ground into the target.