Mm-hmm.

So, when you were in school and they talked about end-feels, remember those? And then, honestly, I don't even remember most of them. Stanley Paris has 16 different end-feels. But yeah, I know. Well, that's the boggy and the mushy and the squeezy and the oatmeal-y. And I don't know. I don't know what they are. They're just a bunch. Jordan probably knows all these end-feels. But this is what you're feeling. So you're feeling the connective tissue behaviors and then where the fluid shift takes place. So when you get a really hard abrupt end-feel, assuming that the joint constraints are within some sort of normal representation, you're feeling the water in the joint compress and it becomes solid, right? That's a hard end-feel. So that's how you can tell. You know where you are. So, when you hit the end range of something and it does not move past and it's supposedly within what they would consider the average ranges by textbook, it's like, you've moved into a space that no longer exists. Because you just compressed everything.

I wanted to stick with squats also. I feel like I have a lot of athletes that could potentially benefit from band assistance, but I don't fully understand it to feel comfortable implementing it. Conceptually, I get that the assistance could help you out of the sticking point, re-accelerate upward, and create an expanded representation in the bottom position. Where I'm struggling is the interplay of band assistance with just adjusting the load by itself. I could use the band to help re-accelerate me out and de-weight some of the load I'm using, but the most common context I see this is with a barbell and weight already on it. So, what could be the potential rationale of having weight with band assistance versus just decreasing the total weight without a band?

Yes, because you're trying to slow down the forward progression. So that would be an increase in yielding. But again, that is a right dependent change. That's not the joint range of motion changing. That's just the connective tissue behavior. It's like putting a parachute on somebody that's trying to run forward. It's just slow things down.

Okay. And so if you get the load correct, you create the delay strategy on the left side, which is superimposition of IR and ER. Okay, superposition of IR on ER. You understand? On the other side, on the other side, you're increasing the duration that you're in middle. Yeah. Do you see the combination of factors? So both of them are gonna superimpose an internal rotation because number one, you're adding load. Where you add the load is gonna determine what the strategies will be. But the two strategies, they're not exactly the same. They're both are gonna superimpose IR. One is gonna superimpose the IR and the ER. The other one is going to compress the space on the other side and promote more IR, less ER. Do you see the difference?

OK, awesome. So then you know that center of gravity is way forward. OK, so you got to get her moving from right to left. Okay. And that, again, very, I think it's very straightforward. So, but, but again, it's like, this is somebody that is pushing forward. So the concern that you have is like, okay, you're great on the table. You're doing everything right. You just kind of make sure that you're she's able to hang on to the same representation is standing.

E-centric.

Yep.

Okay. So what's the question then? Sounds like you already know what you're doing.

Yes, right.

I'm not disagreeing with you. I'm just saying it's like thinking through archetypical representations.

Greetings.

I mean, because I've realized sort of, you get an early representation of the pelvis. You also need a similar early representation of the knee.

I can. Dale likes that one, right? That was actually, I actually answered his question without answering his question. Sneaky that way. Okay. So stand up please. We just need to see your feet.

Which one?

And the VMOs that were a little inactive are definitely more active. It seems to be opening me up and starting to get me in the right direction. I'm not sure if I'm crazy or if that's normal. People don't squat 700 pounds, just so you know.

Do you understand? You just have to account for where that's happening. Sometimes you'll see it in measurements, like when you're doing a left hip measure and you know they're anteriorly oriented and pushed forward. You think they're not going to have any hip internal rotation, but then they have 80 degrees. It's just that the pelvis fell back to the table when you did the measure. Again, you have to be able to account for that because a lot of these things involve the whole system. So you look at the whole system and say, here are my relationships. This is what I should expect to see. Then you have an outlier measure. You think, I shouldn't have that internal rotation because all the other internal rotations are limited. Then you realize they changed position during the measurement to compensate. That's why I always talk about systemic measures in table tests. You need to understand where else they're moving as you do the test. It's like going back to Alex's question at the beginning. He mentioned a girl with 80 degrees of hip internal rotation, but if you slow it down, you can see where everything else starts to move. Again, learning to attend to these things will be really helpful. Just because you're not feeling end resistance doesn't mean other structures aren't moving during the measure. You can learn to pay attention to that, and it will help tremendously. As you develop this capability, your end-range measurements will sometimes be outliers that don't make sense because other things are moving, which magnifies one or two standout measures.

Yeah.

Medial heel and the base of the toe.

They just move on their helical angle, just like the wide guy does. But if I have a more vertical helical angle, it's much easier. I'm moving closer to the helix immediately by constraining them into a position.

Okay. Yeah. I guess. I'm just getting tangled up a little bit because it seems like it's more of like an observer effect, but maybe no, actually no, it means.

Hey, good morning, Bill. Great call. So I had a quick follow-up on, I think it was Zach's question earlier, when we were speaking about how the narrow archetype tends to go forward on the left and then to the right and about reverse engineering it. So I was wondering if the right foot on the wall cross-connect would be a good first step to bring them to the left. Yeah, bring them over to the left first. Okay. And then the left foot on the wall to bring them back afterwards. Maybe.

Yeah.

Okay.

OK. Stand behind them. If you're going to guide the role, you want to be the scapula, not the arm. So you've got somebody laying on the right side or behind them. The way that you would want to control the thorax is you're going to follow me here. Their head is now to your right. You're going to take your left arm, reach up underneath their left arm, and put your left hand on the front of their shoulder girdle. You're going to put your right hand on the back of their shoulder.

There you go. Hang on. This is going to get really interesting.

There's a pretty hot blonde in that video if I recall correctly. Yes. Okay. So let me make a statement and then it'll become very, very clear. Eccentrically oriented muscle has no tension on it. Concentrically oriented muscle does, okay? If I have a compressive strategy that is a concentrically oriented muscle, okay? So if I was to try to stretch an eccentrically oriented muscle, I wouldn't feel anything until I got to the very end and then the connected tissues would kick in, but I would be demonstrating a full excursion of what would be traditional joint range of motion. So if I have limited joint range of motion and I am trying to apply pressure to a muscle to make it longer, good luck with that. It just doesn't work. It just doesn't work. You can't. And here's what we know. And this is in the literature is there's no change in the stiffness of a muscle after you perform a static stretch. Okay. And so what you're getting is you're getting a connective tissue based yielding action in the connective tissues, which is temporary, which is why if you stretch once and you make any measurable gains which good luck with that you're not going to make much. Okay. You make a measurable gain, it doesn't stick. You have to do it again. You have to do it again. It's the people that come in and say, I always have to stretch my hip flexors. I always have to stretch my pecs. The reason that you have to stretch them is because they're concentrically oriented and they're not changing. You're creating a yielding action. But this also describes why you see the power decrement that's associated with static stretching because you're creating a yielding action in the connective tissues, which is what I need to store and release energy. But if I get a yielding action, so I hold that long enough where I get the elongation of connective tissues, I don't get the overcoming action that follows, which is actually the release of energy. So you see the power decrement. Now, what happens after a period of time or after a dynamic warmup? You regain the power element of it because you just recaptured the connective tissue behavior that you used with the static stretching the first place. Now, does that mean that static stretching is useless? Absolutely not. It just means that what you think it's for, it's not for. Okay, so static stretching is specifically to improve the yielding capabilities of connective tissues and to increase your pain tolerance. What you may gain from that is what's called a flexibility reserve. So if I was to take you and I was to yank you into a stretched position, you may have a flexibility reserve that can protect you because you have captured the yielding capabilities of those connective tissues. Okay.

So look at the lower extremity on this. You look at like VL to VM, kind of a representation. You need both of them to be active as she applies force into the ground with her leg underneath her. So straight down as she's standing, right? You got to get her that first. Now, under this circumstance, you might need to help her foot a little bit.

I guess they don't compress. That's a great point because what people end up doing is they think that okay, I'm supposed to keep this muscle active and then they try to breathe in against it. Then they shorten their inhalation and we don't get the expansion that we need to recapture the relative motions. So they create their own interference based on our cues. That's why we have to be really, really careful. That's why the setup becomes much more important as far as the contact, because like I said, if you get that correct, a lot of stuff just falls into place and you don't have to coach it.

Anything that would reproduce those mechanics is the same.