PArabal, video 7

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S… Speaker 1 (PArabal, video 7)

We are going to watch this interesting gait cycle

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S… Speaker 1 (PArabal, video 7)

and then I am going to give you my breakdown about it.

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S… Speaker 1 (PArabal, video 7)

So let's see.

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S… Speaker 1 (PArabal, video 7)

Okay.

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S… Speaker 1 (PArabal, video 7)

Can you spot the asymmetries?

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S… Speaker 1 (PArabal, video 7)

Let's start.

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S… Speaker 1 (PArabal, video 7)

We are going to start with the frontal

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S… Speaker 1 (PArabal, video 7)

plane, lateral flexion.

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S… Speaker 1 (PArabal, video 7)

You can see that there are some asymmetries in

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S… Speaker 1 (PArabal, video 7)

the lateral flexion and most importantly,

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S… Speaker 1 (PArabal, video 7)

they all come.

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S… Speaker 1 (PArabal, video 7)

From the same pattern of compensation,

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S… Speaker 1 (PArabal, video 7)

if you see the lateral flexion to the left is mostly

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S… Speaker 1 (PArabal, video 7)

lumbar dominant.

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S… Speaker 1 (PArabal, video 7)

This is probably,

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S… Speaker 1 (PArabal, video 7)

let's take the point where the lateral flexion to the left is

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S… Speaker 1 (PArabal, video 7)

maximum.

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S… Speaker 1 (PArabal, video 7)

There's going to be somewhere around here.

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S… Speaker 1 (PArabal, video 7)

You see this segment of the spine is straight.

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S… Speaker 1 (PArabal, video 7)

All the lateral flexion is concentrated pretty much in this

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S… Speaker 1 (PArabal, video 7)

few vertebra,

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S… Speaker 1 (PArabal, video 7)

two or three vertebra doing most of the lateral flexion.

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S… Speaker 1 (PArabal, video 7)

The lateral flexion to the right,

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S… Speaker 1 (PArabal, video 7)

however, is different.

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S… Speaker 1 (PArabal, video 7)

This is probably the maximum lateral flexion to the right.

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S… Speaker 1 (PArabal, video 7)

It's a little bit higher on the spine,

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S… Speaker 1 (PArabal, video 7)

but also is not as

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S… Speaker 1 (PArabal, video 7)

prominent as on the left side.

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S… Speaker 1 (PArabal, video 7)

So you see this in movement.

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S… Speaker 1 (PArabal, video 7)

It's going to look like this.

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S… Speaker 1 (PArabal, video 7)

So what's going

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S… Speaker 1 (PArabal, video 7)

to happen is that the ribcage is going to shift to the left.

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S… Speaker 1 (PArabal, video 7)

If you have a lateral flexion at the bottom to the left and lateral flexion at the top

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S… Speaker 1 (PArabal, video 7)

to the right.

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S… Speaker 1 (PArabal, video 7)

The ribcage is going to shift to the left

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S… Speaker 1 (PArabal, video 7)

and you can see it here.

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S… Speaker 1 (PArabal, video 7)

Let's see it in movement actually.

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S… Speaker 1 (PArabal, video 7)

See how this part of the ribcage falls outside of

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S… Speaker 1 (PArabal, video 7)

the hip bone and it doesn't do the same movement to the right side.

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S… Speaker 1 (PArabal, video 7)

So basically he needs more length on

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S… Speaker 1 (PArabal, video 7)

the lateral lines at the bottom of the thorax on

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S… Speaker 1 (PArabal, video 7)

the left side and at the top of the thorax on the right side.

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S… Speaker 1 (PArabal, video 7)

to make this more even so the top of the lateral flexion has to

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S… Speaker 1 (PArabal, video 7)

the top of the ribcage has to do more lateral flexion

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S… Speaker 1 (PArabal, video 7)

to the left and the lumbar has to do more lateral flexion

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S… Speaker 1 (PArabal, video 7)

to the right to make this more symmetrical the lumbar

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S… Speaker 1 (PArabal, video 7)

he's compressing when landing this is happening on both sides you see

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S… Speaker 1 (PArabal, video 7)

that there is a little bit up here you see this

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S… Speaker 1 (PArabal, video 7)

folds on the skin when he lands here again

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S… Speaker 1 (PArabal, video 7)

Holds on the skin.

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S… Speaker 1 (PArabal, video 7)

It's happening more on the right side though.

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S… Speaker 1 (PArabal, video 7)

But this is a result of

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S… Speaker 1 (PArabal, video 7)

him landing on his foot.

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S… Speaker 1 (PArabal, video 7)

So you can see that he lands,

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S… Speaker 1 (PArabal, video 7)

impact is at his ankle,

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S… Speaker 1 (PArabal, video 7)

impact is at the knee,

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S… Speaker 1 (PArabal, video 7)

hip,

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S… Speaker 1 (PArabal, video 7)

and then it goes up to the lumbar.

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S… Speaker 1 (PArabal, video 7)

This is a reaction of his body.

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S… Speaker 1 (PArabal, video 7)

This is probably because of some

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lacking of tension on the posterior chain,

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S… Speaker 1 (PArabal, video 7)

probably at the calves and feet level.

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S… Speaker 1 (PArabal, video 7)

When you see him running here from the side,

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S… Speaker 1 (PArabal, video 7)

you see that his arch is too high

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S… Speaker 1 (PArabal, video 7)

and the arch doesn't open.

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S… Speaker 1 (PArabal, video 7)

So that's probably one of the deficiencies that is making him

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not reduce the impact of his landing.

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S… Speaker 1 (PArabal, video 7)

The arch has to move.

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S… Speaker 1 (PArabal, video 7)

It has to raise and it has to drop.

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S… Speaker 1 (PArabal, video 7)

It has to do the two ranges of motion.

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S… Speaker 1 (PArabal, video 7)

Okay, let's look at the transverse plane.

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S… Speaker 1 (PArabal, video 7)

We can also see some asymmetries here.

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S… Speaker 1 (PArabal, video 7)

You can see him running.

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S… Speaker 1 (PArabal, video 7)

The rotation to the right is a lot more prominent than the rotation

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S… Speaker 1 (PArabal, video 7)

to the left.

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S… Speaker 1 (PArabal, video 7)

You can also see it on the arm swing.

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S… Speaker 1 (PArabal, video 7)

This arm is going way more behind than

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the left arm.

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S… Speaker 1 (PArabal, video 7)

You can see it more on the

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side view also.

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And the rear cage is rotating more to the side.

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S… Speaker 1 (PArabal, video 7)

So that's one asymmetry.

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S… Speaker 1 (PArabal, video 7)

On the transverse plane,

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S… Speaker 1 (PArabal, video 7)

there is a limited pelvis rotation and also femur rotation

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as a consequence.

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S… Speaker 1 (PArabal, video 7)

So the pelvis doesn't rotate as much.

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S… Speaker 1 (PArabal, video 7)

If the pelvis doesn't rotate,

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it's going to do another movement.

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S… Speaker 1 (PArabal, video 7)

And in this case,

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S… Speaker 1 (PArabal, video 7)

it's going to be a lateral tilt.

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S… Speaker 1 (PArabal, video 7)

And it's going to happen more when he lands on

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S… Speaker 1 (PArabal, video 7)

his foot.

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S… Speaker 1 (PArabal, video 7)

The thorax

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and the arm sequence is off.

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S… Speaker 1 (PArabal, video 7)

Usually on elite sprinters,

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S… Speaker 1 (PArabal, video 7)

let's say that the rib cage is rotating to the left,

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S… Speaker 1 (PArabal, video 7)

this arm is,

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S… Speaker 1 (PArabal, video 7)

most of the rotation is going to be swinging forward.

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S… Speaker 1 (PArabal, video 7)

When he's rotating to the left,

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the arm is swinging back and it has to go forward.

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S… Speaker 1 (PArabal, video 7)

So the arm and rib cage sequencing,

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S… Speaker 1 (PArabal, video 7)

it's off,

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S… Speaker 1 (PArabal, video 7)

it's backwards most of the time.

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S… Speaker 1 (PArabal, video 7)

That's not going to allow him to do a proper force transfer between

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S… Speaker 1 (PArabal, video 7)

his arm swing and his ribcage movement.

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S… Speaker 1 (PArabal, video 7)

On the sagittal plane,

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he has a rigid upper thorax.

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So you can see it here.

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S… Speaker 1 (PArabal, video 7)

This segment,

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it pretty much doesn't move that much.

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S… Speaker 1 (PArabal, video 7)

So that's one of the things that's happening.

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S… Speaker 1 (PArabal, video 7)

If we see it from behind,

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that

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segment doesn't move as much.

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S… Speaker 1 (PArabal, video 7)

That segment doesn't do extension.

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S… Speaker 1 (PArabal, video 7)

And there is also limited hip extension on the right leg.

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S… Speaker 1 (PArabal, video 7)

And he compensates by doing a lumbar extension

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instead.

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S… Speaker 1 (PArabal, video 7)

So let's watch.

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S… Speaker 1 (PArabal, video 7)

You see that when he's swinging this leg back,

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S… Speaker 1 (PArabal, video 7)

his lumbar is doing extension,

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S… Speaker 1 (PArabal, video 7)

right?

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S… Speaker 1 (PArabal, video 7)

When he's doing it,

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S… Speaker 1 (PArabal, video 7)

I'm going to put this actually slower and see if I can slow it down.

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S… Speaker 1 (PArabal, video 7)

When we slow it down using AI,

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S… Speaker 1 (PArabal, video 7)

it looks a little bit funny sometimes.

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S… Speaker 1 (PArabal, video 7)

You see how much this lumbar is doing extension when he swings his

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S… Speaker 1 (PArabal, video 7)

leg back?

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That doesn't happen with the left leg.

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So this leg has to do more extension.

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You see?

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S… Speaker 1 (PArabal, video 7)

And hyperextension when he steps with the right leg.

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is not the same as when he steps with the left leg.

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S… Speaker 1 (PArabal, video 7)

It's not that this hyperextension with the lumbar shouldn't happen,

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S… Speaker 1 (PArabal, video 7)

but the thing is that he's doing the hyperextension because the

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hip is not extending.

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S… Speaker 1 (PArabal, video 7)

Usually when you're sprinting,

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the hip does extension first,

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S… Speaker 1 (PArabal, video 7)

the lumbar does extension after,

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and the thoracic does a hyperextension last.

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S… Speaker 1 (PArabal, video 7)

But he's doing the hyperextension of the lumbar in the beginning.

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S… Speaker 1 (PArabal, video 7)

That's one thing.

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S… Speaker 1 (PArabal, video 7)

On the lower limbs,

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S… Speaker 1 (PArabal, video 7)

limited knee flexion on the left side.

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S… Speaker 1 (PArabal, video 7)

We can probably see it better here.

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S… Speaker 1 (PArabal, video 7)

The right side,

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S… Speaker 1 (PArabal, video 7)

actually, the knee flexion on the right side is not too bad.

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S… Speaker 1 (PArabal, video 7)

He could do a little bit more.

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S… Speaker 1 (PArabal, video 7)

But on the left side,

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S… Speaker 1 (PArabal, video 7)

it's not the same.

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S… Speaker 1 (PArabal, video 7)

It's a little bit less.

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S… Speaker 1 (PArabal, video 7)

So that's something else.

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S… Speaker 1 (PArabal, video 7)

Right.

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Making better.

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S… Speaker 1 (PArabal, video 7)

On the left side.

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S… Speaker 1 (PArabal, video 7)

It's not that bad,

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S… Speaker 1 (PArabal, video 7)

though.

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S… Speaker 1 (PArabal, video 7)

foot and ankle hypermobility well hypermobility on the

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S… Speaker 1 (PArabal, video 7)

arch is too far up he raises his arch too much

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S… Speaker 1 (PArabal, video 7)

so that's something that he has to

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S… Speaker 1 (PArabal, video 7)

work on let's see the upper limbs

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S… Speaker 1 (PArabal, video 7)

there are asymmetries in the arm swing and most notably the

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S… Speaker 1 (PArabal, video 7)

right arm does too much extension shoulder extension

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S… Speaker 1 (PArabal, video 7)

doesn't do enough shoulder flexion the left arm doesn't doesn't do

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S… Speaker 1 (PArabal, video 7)

shoulder extension and it does too much flexion because also

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S… Speaker 1 (PArabal, video 7)

his ribcage rotates too much to the right so you can see that this

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S… Speaker 1 (PArabal, video 7)

arm swings back more this arm swings forward more is

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S… Speaker 1 (PArabal, video 7)

it probably a little bit better from the side view see

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S… Speaker 1 (PArabal, video 7)

it has

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S… Speaker 1 (PArabal, video 7)

one thing and

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S… Speaker 1 (PArabal, video 7)

That makes his scapula hypermobile.

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S… Speaker 1 (PArabal, video 7)

This scapula retracts too much.

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S… Speaker 1 (PArabal, video 7)

This scapula protracts too much.

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S… Speaker 1 (PArabal, video 7)

Also,

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S… Speaker 1 (PArabal, video 7)

the elbows.

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S… Speaker 1 (PArabal, video 7)

He needs to do more elbow extension,

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S… Speaker 1 (PArabal, video 7)

especially on the left side.

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S… Speaker 1 (PArabal, video 7)

The left side is pretty bad on extension.

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S… Speaker 1 (PArabal, video 7)

It looks kind of

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S… Speaker 1 (PArabal, video 7)

like he's walking with an arm brace on his left side.

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S… Speaker 1 (PArabal, video 7)

When you run,

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S… Speaker 1 (PArabal, video 7)

that arm has to swing,

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S… Speaker 1 (PArabal, video 7)

has to do extension,

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S… Speaker 1 (PArabal, video 7)

has to do flation.

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S… Speaker 1 (PArabal, video 7)

And what else?

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S… Speaker 1 (PArabal, video 7)

And there is poor force transfer between the arms

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S… Speaker 1 (PArabal, video 7)

and the thorax.

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S… Speaker 1 (PArabal, video 7)

Especially when he rotates the ribcage to

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S… Speaker 1 (PArabal, video 7)

the left.

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S… Speaker 1 (PArabal, video 7)

Actually on both sides,

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S… Speaker 1 (PArabal, video 7)

but more when he rotates the ribcage to the left.

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S… Speaker 1 (PArabal, video 7)

And that comes from the arm sequencing being

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S… Speaker 1 (PArabal, video 7)

a little bit off.

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S… Speaker 1 (PArabal, video 7)

So we have seen that previously with Elite Sprinters.

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S… Speaker 1 (PArabal, video 7)

How that works.

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S… Speaker 1 (PArabal, video 7)

And I think that's it for this movement audit.

PArabal, video 7

Samenvatting

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