Lead Wrist

WEBVTT

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All right, coaches, we're going at it again this time looking at the 3D

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movements of the lead wrist so the left wrist for a right hand to golfer.

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This is the graph that we're going to be analyzing, but with all the topics we

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've done, we're going to take a look at the anatomy and movements first.

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And then we'll cover some TPI guidelines and look at examples to help you

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understand the kind of the stock tour pattern.

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So we'll get tour swings as well as the three amateurs we've been analyzing in

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this series.

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Okay, with AMM, we're looking at radial ulnar, flexion, extension, pronation,

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supination.

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Now, you do have to recognize that different systems will calculate it

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differently.

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So, depending on where the sensor locations are, so with AMM, they have a

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sensor on the back of the hand,

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and then they have a sensor on the tendon of the tricep because it doesn't move

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a whole lot.

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So if you have the sensor, the second sensor on the forearm, you might get a

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little bit more play just from when you contract and relax the forearm muscles.

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So that's just something to factor in and consider, don't just think because

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the graph, because the system says this is the movement that there wasn't some

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interplay in as far as how it's being collected.

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So, radial and ulnar, flexion, extension, pronation, supination.

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We'll dig into a little bit more with each individual graph.

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Okay, with the AMM system, they do some funny things as far as their

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presentations.

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As in, they don't use the conventional right hand rule.

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So, real quick, the conventional right hand rule is basically, if you take your

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right hand and you stick it out like this,

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so you're making a gun with an index finger, this is your X, Y, and Z axis.

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In normal biomechanics, you would have the positive when you're going, like if

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you were shooting a gun out of those barrels, that would be the positive.

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And if you were rotating around the axis, if you stuck your thumb on the axis,

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the direction you curl, your fingers would be positive.

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So, that would be positive, that would be positive, and that would be positive.

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TPI and AMM 3D invert the flexion extension graph so that it looks more like a

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kinematic sequence.

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So, you can see there's kind of this general flow to it.

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So, you might see with something like hack motion, where the flexion extension

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is going negative instead of positive.

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That's because they actually follow the conventional rhythm, or the

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conventional guidelines, and AMM and some other systems have inverted it for

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ease of presentation.

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But here we have grant weight, we'll dig into the details, but there's a little

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snapshot, then we've got Henrik Stenson somewhat similar, right?

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That's kind of that general nice flow, and then Steve Elkington, again, has

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kind of a general nice flow to it when you look at the three together.

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You know, there'll be some little differences in terms of the magnitudes, and

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the timings, and some of the slopes, but you'll see this general kind of flow

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during the downswing, where there's green line, up and peak, red line, up and

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peak, blue line, up and peak, well after impact.

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So, that's why they did it that way, it kind of looks clean and nice, but we'll

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dig into the details to see what each one really means.

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Okay, as always, with the 3D guidelines, you want to recognize that the graph

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is showing you what the sensor is doing, or the virtual sensor is doing.

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It's a measurement of the movement, it's not the actual movement, but it will

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help you focus your attention to areas that either subtly look off or

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dramatically look off.

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In general, you never want to look at one graph, you want to look at the

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movement system as a whole, but some systems, like if you were looking at hack

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motion and all you had was the lead risk, you can compare that or you can use

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that with video

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or your observations to help kind of decode why the golfer is doing it.

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In order to figure out what they're doing and why they're doing it, you want to

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think about some of our movement guides.

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With this, I really hone in on number 6, so why are they making these movements

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?

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Because the graphs show you a timeline, so they kind of show you the movement

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pattern at one segment at its hole.

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And you can see all the different segments on the screen at once, so you can

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kind of see how each part of the body is moving and at what time you can see

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which triggered what.

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So you can really get a good sense of how they're controlling path, how they're

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controlling face, how they're creating power.

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If you look at what movements are happening during the swing goals.

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You can also look for plateaus as far as fixed points, and then the key one is

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thinking these relationships of why would a hip move a certain way if a wrist

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is moving a certain way.

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Hopefully these series have helped you connect the dots a little bit more.

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When focusing on the wrist graphs, the anatomy we're going to look at is the

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wrist and the elbow, this segment here.

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But you also want to look at what's happening with the scapular girdle and what

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's happening with the shoulder muscles because they are going to have a big

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influence on what's going on here at the hand.

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Okay, the joints are pretty interesting when we're looking at what's going on

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here.

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So with the elbow, you've got the radius and the ulna and the humerus all kind

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of meeting together.

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And that's a pretty simple hinge joint as far as the ulna, humeral joint.

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But then the radius, which is what does pronation, supination, you basically

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have these two bones that are long like this and they've got kind of this

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almost like wheel action that happens here at the elbow.

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So if you're looking where the mouse is right there is where pronation, sup

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ination occurs and then you have this rotating of the radius goes all over the

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ulna.

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The ulna bone doesn't move.

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When you pronate, supinate the radius moves in relationship to the ulna.

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You have the wrist joint, which has two movements to it, flexion, extension,

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radial and ulnar deviation.

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And then pronation, supination is happening at the forearm.

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Now, I got this x-ray over here because it'll show a little clearer than this.

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The radius is the bigger bone at the wrist, ulna is the smaller one.

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You can see a lot more space here at the ulna than you can at the radius.

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That is why when you try to ulnar deviate, you have a lot more range of motion

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than when you try to radially deviate.

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There's less space for that movement and there's some factors as far as the lig

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aments have a big influence on the movement at the wrist joint as well.

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But just kind of getting a general picture of some of the complexity of this

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area, even though on paper it's simple because it only does two movements.

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This is just to kind of remind you that when you look at that x-ray, it would

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be easy to think that the hand is flat, but the wrist bones are actually in a

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horseshoe shape, kind of like this.

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So that doesn't have a huge influence on how you're going to coach it, but it's

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something that you should be aware of.

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When someone gets like carpal tunnel or some of the other neuropathy or pains,

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this is a common joint or a common area

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where everything can get a little bit tight.

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So these pictures were taken from a website that does carpal tunnel surgery so

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that you can kind of understand where everything's getting impinged.

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But oftentimes if it's tight here, it could be getting compressed or tight from

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further up the chain, either at the elbow or at the shoulder or at the neck.

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Alright, as you can see, there's a lot of muscles going on in the forearms, so

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it can get, you know, you don't have to memorize them all.

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You can look at these slides or look at the anatomy.

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In general, you've got your extensors on the backside of the arm, and you've

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got your flexors on the inside of the arm, and then you've got called your

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ridge muscles.

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So here's a slide taken from like an artist.

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You can see that the muscles aren't even actually connecting to the bones

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properly, but it's a good little kind of graphical or image that you can think

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about.

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So all the flexors are kind of down here, and then all the extensors are on the

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backside, and then the ridge muscles on top do more of the hinge.

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Basically, the muscles on the bottom side will do the unhinged, the muscles on

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the top side will do the radial deviation or the hinge.

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Now here if we go back to the x-ray and we add a little some images from Kapan

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ji, we can see that the joint is not quite as simple as a flexion extension

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pattern or just a simple two-plane movement.

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You can see that the actual axes of rotation in the wrist anatomically are more

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of an oblique angle.

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So if I have my wrist like this, the angle that I'm going to hinge at is going

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to be more like this, and then the angle that I'm going to grab at the front,

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the angle that I'm going to unhinged at would be in the opposite kind of this

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way.

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So you have diagonal axis going this way, and diagonal axis kind of going that

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way.

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So either up and out towards the radius or down and out towards the former.

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And this picture here is just showing how the ligaments influence some of these

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movement patterns as well.

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Don't worry too much about the ligaments at this point.

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And this just shows some of the complexity when you start to, so in this case

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radial deviation, you'll see that all these eight bones in the wrist can almost

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play jenga.

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It's been described as the bones in the wrist are kind of like two bags of wal

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nuts that have been perfectly fit together.

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So they move together kind of like this, but there is a little bit of sliding

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and gliding as they move as well.

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So let's get into the slings, which is a little bit easier.

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So this slide here, let's make that a little bit bigger.

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This slide here just kind of shows one of the big challenges of golf, which is

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you've got your extensor groups that connect to these big muscles in your

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shoulder, your deltoid and your trap.

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And then you've got your kind of ulnar deviation or kind of deep muscles that

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connect to your tricep and into the smaller muscles on the inside of your

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shoulder.

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This kind of shows, there's, I think there's more going on than just these two

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lines, but commonly when a golfer goes into extension of the lead wrist kind of

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going into more of a chicken wing pattern like that, that is going to be

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accompanied by this shoulder shrug and the upper trap.

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Because those are on the same sling or they're on a similar, I think that there

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are more like anatomy trains or slings than just these two.

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And just the ones that they show in anatomy trains from my studies of following

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ghee.

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But this can explain a common reason why you see these two movements happening

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together, where the shrug and the extension happens.

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So, be skeptical of any instructor advocating an active extension down at the

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bottom because subconsciously they're also encouraging an active shrug down at

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the bottom.

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Now, those are both powerful movements where more of a supination, kind of like

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this, probably doesn't feel as powerful, but it accompanies more this tricep

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extension.

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And it accompanies more getting the power from my abs in the rib cage.

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So, it lines up anatomically into kind of a more seamless blend of what the

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arms and the body is doing, and it lines up geometrically for creating a flat

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spot and slower clubface rotation.

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So, I think it's kind of a win-win or makes a lot of sense when you think about

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it in these muscle slings, and if you're relating what's happening at the arms

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to what's happening in the engine.

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Alright, so some fun details there with the anatomy. There's always more layers

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if you study it.

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But let's jump into looking at these graph patterns.

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So, what do we see on the graph, what's good, what's bad, et cetera.

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So, the overall arm goals from a kinetic standpoint, we're trying to get the

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center of mass underneath the path of the hands, that allows for a little bit

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more passive squaring.

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We'll talk about the kinetics in another presentation, a little bit more.

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And we're also trying to delay the transfer, delay the couple, we're trying to

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delay the active motions of the hands until later in the swing.

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From a kinematic standpoint, we got to square that clubface and we got to

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shallow the path so that we can create that flat spot down at the bottom.

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Okay, first of the three graphs, let's look at lead wrist flexion extension.

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So, this is probably the most common one discussed as far as looking at the

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lead wrist.

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The stock tour swing trends are about 25 degrees extension at setup, but I've

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seen as little as positive for some really weak golfers and as much as about 45

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50 for some really strong grips.

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There are different ways to have a strong grip, but that's a common one.

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It'll be about 10 degrees less extended at the top.

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So at about 50, if we start at 25, it's about 15 degrees extended at the top.

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And then it will peak somewhere around five parallel or late, you know, after

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delivery position.

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It'll pretty much peak right before it starts to, you start to bring the hand

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path a little bit more up.

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And as you do that, you're going to lose some of that extension of the wrist so

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it's pretty neutral at impact, even though it got to, you know, 10 15 degrees

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flex that it's peak down below shaft parallel.

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So, if you go from the minimum kind of up at the top to the maximum amount of

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flex that's usually somewhere around 40 degrees or so, rough estimate.

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But then it will typically be extending through impact into the follow through.

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So the key anatomical structures, again, the thorax positions, in order to flex

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the wrist, you have to have the body open or the hands disconnected.

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You need to have shaft lean in order to have more of this lead wrist flex,

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otherwise you would close the club face.

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So you can either get that shaft lean from thorax rotation with coupled with

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side bend, or you could get it from lead arm abduction and kind of pulling the

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arms ahead like so.

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So, anyway, you want to match up how the wrists are moving with what the arms

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you're doing.

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So a good place to look is what are the shoulders doing, what are the shoulder

229
00:16:15.520 --> 00:16:19.000
blades doing, what's the glenohumeral joint doing.

230
00:16:19.000 --> 00:16:23.220
The easiest place to see the glenohumeral joint is by looking at the elbow and

231
00:16:23.220 --> 00:16:26.000
kind of where the back of the elbow is pointing.

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00:16:26.000 --> 00:16:32.260
So the back of the elbow is the ulna, the humerus connects into it, but you've

233
00:16:32.260 --> 00:16:35.000
got kind of these three bones.

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00:16:35.000 --> 00:16:41.150
These two here are the part of the humerus, and so you can see like where the

235
00:16:41.150 --> 00:16:48.250
shoulder has rotated based on where that triangle is of those, the elbow point

236
00:16:48.250 --> 00:16:51.000
and the lateral and medial epicondiles.

237
00:16:51.000 --> 00:16:56.860
Okay, the hands have a big, big influence on the club face, and so we're

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00:16:56.860 --> 00:17:02.300
looking at all the relationships of that relate to the club face being open

239
00:17:02.300 --> 00:17:03.000
closed.

240
00:17:03.000 --> 00:17:06.140
And in order for the club face to be open closed, you have to relate it to what

241
00:17:06.140 --> 00:17:09.000
's happening with the path and what's happening with the power.

242
00:17:09.000 --> 00:17:15.000
Am I creating the power from body rotation, you know, hips and trunk?

243
00:17:15.000 --> 00:17:21.770
Or am I creating it more from lat pull down or shoulder throw with pecs and

244
00:17:21.770 --> 00:17:23.000
subscat?

245
00:17:23.000 --> 00:17:27.770
And then the other big influence to the club face orientation is looking at

246
00:17:27.770 --> 00:17:29.000
grip strength.

247
00:17:29.000 --> 00:17:32.840
So I always tell my students you have two options for controlling the club face

248
00:17:32.840 --> 00:17:33.000
.

249
00:17:33.000 --> 00:17:38.000
One is changing it at setup and do the same thing you were doing with the hands

250
00:17:38.000 --> 00:17:42.000
, or two is change what the hands and the forearms are doing.

251
00:17:42.000 --> 00:17:47.840
Now, TPI says that there are only two wrist related errors, at least in their

252
00:17:47.840 --> 00:17:53.000
biomechanics class, you've got scooping down at the bottom or chicken wing.

253
00:17:53.000 --> 00:17:59.430
So I think that there are many more in this particular one, we could look at

254
00:17:59.430 --> 00:18:06.300
going into extension early, so kind of more of an excessive pull down possibly

255
00:18:06.300 --> 00:18:08.000
early in transition.

256
00:18:08.000 --> 00:18:15.360
And we'll dig into some others as we look through the amateur graphs, but I don

257
00:18:15.360 --> 00:18:20.000
't want you to think that, especially as we look at pronation supination,

258
00:18:20.000 --> 00:18:28.220
the wrist graphs will give us insights into shallowing, squaring, power source,

259
00:18:28.220 --> 00:18:32.950
and all of those can, I think, be big errors, not just scooping down to the

260
00:18:32.950 --> 00:18:34.000
bottom versus chicken wing.

261
00:18:34.000 --> 00:18:40.380
Okay, let's dive in. So with the flexion extension graph, again, always check

262
00:18:40.380 --> 00:18:42.000
how they're measuring whatever system you're looking at.

263
00:18:42.000 --> 00:18:49.000
So with the AMM, we've got flexion is positive, extension is negative.

264
00:18:49.000 --> 00:18:54.620
So grant weight starts with about 15 degrees of extension, he flexes it in the

265
00:18:54.620 --> 00:18:58.000
takeaway, he extends it as he sets his wrist.

266
00:18:58.000 --> 00:19:02.090
That's kind of normal pattern. And then prior to the top of the swing, he

267
00:19:02.090 --> 00:19:07.240
starts flexing it, that's kind of a motorcycle move flexes it until about shaft

268
00:19:07.240 --> 00:19:11.000
45 before impact and then starts extending it.

269
00:19:11.000 --> 00:19:17.000
But at impact, he's a good 20, 25 degrees more flex than where he was at setup,

270
00:19:17.000 --> 00:19:20.280
because it set up he was extended this way and it impact he's a little bit flex

271
00:19:20.280 --> 00:19:21.000
ed that way.

272
00:19:21.000 --> 00:19:25.720
Here's the story of Henrik Simpson, so similar grip strength, but then he

273
00:19:25.720 --> 00:19:29.950
extends it all the way to the top of the swing, just a little bit more, you

274
00:19:29.950 --> 00:19:32.000
know, 10 degrees or so.

275
00:19:32.000 --> 00:19:38.210
But then he flexes it all the way to positive and then crosses impact it pretty

276
00:19:38.210 --> 00:19:39.000
neutral.

277
00:19:39.000 --> 00:19:43.000
Comes out of it a little bit slower and a little bit later.

278
00:19:43.000 --> 00:19:49.760
Then you got elk elks more like a grant weights pattern. So he's got 25 degrees

279
00:19:49.760 --> 00:19:55.000
at start, loses it in the takeaway extends it even more up towards the top.

280
00:19:55.000 --> 00:20:01.410
Kind of keeps it extended just during that first initial transition and then

281
00:20:01.410 --> 00:20:03.000
flexes it a ton.

282
00:20:03.000 --> 00:20:09.950
Good 40 degrees and he's kind of still getting close to flexing when he hits

283
00:20:09.950 --> 00:20:11.000
impact.

284
00:20:11.000 --> 00:20:18.560
So you'll tend to see that a little bit more with the kind of arm throw pattern

285
00:20:18.560 --> 00:20:19.000
.

286
00:20:19.000 --> 00:20:23.730
If you started losing that extension while you were behind you would tend to

287
00:20:23.730 --> 00:20:27.000
bottom out your low point hit a lot of thin shots.

288
00:20:27.000 --> 00:20:32.220
So we'll tend to see that pattern where it's a little more arm throw at the

289
00:20:32.220 --> 00:20:36.000
bottom having later peaking kind of like this.

290
00:20:36.000 --> 00:20:40.000
And then he goes into extension pretty rapidly.

291
00:20:40.000 --> 00:20:44.000
You know, it's a little bit steeper curve down through impact.

292
00:20:44.000 --> 00:20:47.000
Okay, back to looking at the amateurs.

293
00:20:47.000 --> 00:20:51.250
I like to look at the graphs and think about how is this influencing club face

294
00:20:51.250 --> 00:20:52.000
control.

295
00:20:52.000 --> 00:20:57.650
So flexing, closing, extending, opening, low point control, flexing, delaying

296
00:20:57.650 --> 00:21:00.000
it, extending, making it happen earlier.

297
00:21:00.000 --> 00:21:05.000
And then this one has a big impact on compression or smash factor.

298
00:21:05.000 --> 00:21:10.000
So, but remember TPI is just looking for scoop and chicken wing.

299
00:21:10.000 --> 00:21:15.000
Okay, looking at Colin, this is kind of a classic amateur.

300
00:21:15.000 --> 00:21:20.220
So we've got weaker grip to start flexes it in the takeaway, then extends it to

301
00:21:20.220 --> 00:21:23.000
the top of the swing and then flexes some.

302
00:21:23.000 --> 00:21:28.040
It's very hard not to flex it some just because of when you go into ulnar

303
00:21:28.040 --> 00:21:29.000
deviation.

304
00:21:29.000 --> 00:21:33.000
That natural coupled motion is going to pull it.

305
00:21:33.000 --> 00:21:38.000
Well, even if I'm here as I unhing it, it's going to want to approach neutral.

306
00:21:38.000 --> 00:21:43.000
So it's very hard not to have it go into some flesh and during the downswing.

307
00:21:43.000 --> 00:21:47.000
And then he crosses impact pretty close to where he started.

308
00:21:47.000 --> 00:21:52.000
And with the wrist, it's a little hard to see everything from just one view.

309
00:21:52.000 --> 00:21:56.000
So here you can look at setup to kind of get a rough.

310
00:21:56.000 --> 00:22:00.000
So he's got a pretty weak extension amount, only about five degrees.

311
00:22:00.000 --> 00:22:05.000
Now down the line is easy to see when we take it away.

312
00:22:05.000 --> 00:22:07.000
There he's kind of gone.

313
00:22:07.000 --> 00:22:10.000
He's flexed the wrist more than where it was to start.

314
00:22:10.000 --> 00:22:14.720
And then as he goes to set it, see how it starts that lead wrist is going into

315
00:22:14.720 --> 00:22:17.000
more extension.

316
00:22:17.000 --> 00:22:20.000
Stays kind of in that extension.

317
00:22:20.000 --> 00:22:26.000
And now as it starts to unhinge, it doesn't look like it's flexing a lot.

318
00:22:26.000 --> 00:22:30.000
But because it's unhinging, we'll get some more flexing.

319
00:22:30.000 --> 00:22:35.830
And then again, as we come down to impact is a good place to now, or the face

320
00:22:35.830 --> 00:22:39.000
on is now a good place to visually look at what's happening.

321
00:22:39.000 --> 00:22:44.000
So it goes into some amount of extension there on the way through.

322
00:22:44.000 --> 00:22:46.000
So that's what we saw.

323
00:22:46.000 --> 00:22:52.140
A little flex extended up at the top, keeps it there, flexes as he's unhinging,

324
00:22:52.140 --> 00:22:55.000
and then extends it a bunch through impact.

325
00:22:55.000 --> 00:22:57.000
Okay, now we got Mike.

326
00:22:57.000 --> 00:23:01.000
So flexes it in the takeaway, extends it to the top.

327
00:23:01.000 --> 00:23:07.320
That's pretty much as little flexion you're going to see, and then extension

328
00:23:07.320 --> 00:23:09.000
through impact.

329
00:23:09.000 --> 00:23:15.000
Okay, so we've got pretty weakish there at the start.

330
00:23:15.000 --> 00:23:19.000
Or as far as that wrist extension.

331
00:23:19.000 --> 00:23:24.000
So there we can see wrist bowing more going into flexion.

332
00:23:24.000 --> 00:23:30.270
But then as he starts to hinge see it really get into extension there at the

333
00:23:30.270 --> 00:23:31.000
top.

334
00:23:31.000 --> 00:23:37.420
And then the reason he's able to keep that extension is he doesn't have the

335
00:23:37.420 --> 00:23:42.000
appearance of a lot of ulnar deviation.

336
00:23:42.000 --> 00:23:47.000
And then let's see what it looks like down there.

337
00:23:47.000 --> 00:23:54.000
So keeps it pretty stiff through there, not a lot of going into extension.

338
00:23:54.000 --> 00:23:59.890
A little bit more of probably see some stuff with the trail wrist, or maybe in

339
00:23:59.890 --> 00:24:02.000
one of the other, maybe in the pronation supination grip.

340
00:24:02.000 --> 00:24:07.440
Okay, and then Ron, we've got no real flexing there in takeaway, and then

341
00:24:07.440 --> 00:24:12.000
extending up towards the top, and then flexing the whole downswing.

342
00:24:12.000 --> 00:24:15.000
Overall, that's not too bad.

343
00:24:15.000 --> 00:24:20.320
A little on the weak side compared to the torn numbers, you can see not a lot

344
00:24:20.320 --> 00:24:23.000
of extension there in that wrist.

345
00:24:23.000 --> 00:24:27.000
As he starts back, not much change.

346
00:24:27.000 --> 00:24:34.240
Not much change, little bit of extension through there, and then not much

347
00:24:34.240 --> 00:24:37.000
movement through there.

348
00:24:37.000 --> 00:24:41.000
Okay, this is a good checkpoint when you're looking at the downswing there.

349
00:24:41.000 --> 00:24:46.840
You can see that there's an angle, more of an angle there than there was in

350
00:24:46.840 --> 00:24:48.000
takeaway.

351
00:24:48.000 --> 00:24:53.000
So there you can see the knuckles kind of a little bit more this way.

352
00:24:53.000 --> 00:24:59.260
And then when we get back to that same spot on the way down, the knuckles, if I

353
00:24:59.260 --> 00:25:03.000
drew a line off the radius bone, the knuckles are a little bit more that way.

354
00:25:03.000 --> 00:25:11.750
So that's where we see that's the evidence of that flexion pattern, and then

355
00:25:11.750 --> 00:25:13.000
impact.

356
00:25:13.000 --> 00:25:15.000
Not a big breakdown.

357
00:25:15.000 --> 00:25:19.120
So none of these guys are really poor in terms of seeing like a massive

358
00:25:19.120 --> 00:25:22.000
extension, but you will see that.

359
00:25:22.000 --> 00:25:27.570
All right, next one, radial and ulnar deviation, so looking at hinge and unhing

360
00:25:27.570 --> 00:25:28.000
e.

361
00:25:28.000 --> 00:25:31.400
This one, you have to be, if you're looking at the absolute value or the

362
00:25:31.400 --> 00:25:35.000
numbers, you have to be really careful with how they digitize it.

363
00:25:35.000 --> 00:25:41.000
Every system has a different way of digitizing like what is zero.

364
00:25:41.000 --> 00:25:48.000
AMMs actually tend to bias a little bit more towards ulnar deviation.

365
00:25:48.000 --> 00:25:54.000
So basically, they have you digitize in this position.

366
00:25:54.000 --> 00:26:01.360
And so as a result, when you're holding it like this, that's not like if you

367
00:26:01.360 --> 00:26:05.850
have a lot of the systems, other systems will do it if you're hanging your arm

368
00:26:05.850 --> 00:26:07.000
at your side.

369
00:26:07.000 --> 00:26:11.450
So if you're hanging your arm at your side, and then you locked your wrist in

370
00:26:11.450 --> 00:26:15.640
place and you bring it up, typically your thumb would be a little bit out, not

371
00:26:15.640 --> 00:26:16.000
up.

372
00:26:16.000 --> 00:26:22.050
So the AMM system digitizes you a little bit more in radial, so it always looks

373
00:26:22.050 --> 00:26:24.000
like it's a little bit more ulnar.

374
00:26:24.000 --> 00:26:30.480
Because you're coming out of a biased, it's everything's a little shifted

375
00:26:30.480 --> 00:26:33.000
towards the radial side.

376
00:26:33.000 --> 00:26:38.000
So you just have to factor those numbers in.

377
00:26:38.000 --> 00:26:42.470
But again, the absolute values are not the most important thing when looking at

378
00:26:42.470 --> 00:26:43.000
3D.

379
00:26:43.000 --> 00:26:46.000
The patterns are way more important.

380
00:26:46.000 --> 00:26:51.000
So the pattern is we're going to hinge about 50 degrees in the backswing.

381
00:26:51.000 --> 00:26:57.000
Now remember, we only anatomically, we only have about 25 degrees.

382
00:26:57.000 --> 00:27:02.140
So part of the reason that you hinge 50 degrees and you get people who are well

383
00:27:02.140 --> 00:27:07.390
more radial at the top than is anatomically possible is because they were

384
00:27:07.390 --> 00:27:10.000
biased a little bit in that direction.

385
00:27:10.000 --> 00:27:14.000
So it made it look like they started in way more ulnar.

386
00:27:14.000 --> 00:27:18.000
Okay, and then we'll have a flat line near the top.

387
00:27:18.000 --> 00:27:22.930
We'll look at that when we look at our amateurs and then unhinged through

388
00:27:22.930 --> 00:27:25.000
impact to the other side.

389
00:27:25.000 --> 00:27:28.680
Now for that, you have to be careful with the weight of the sensor, whether it

390
00:27:28.680 --> 00:27:32.000
's taped or attached to a glove and the frame rate.

391
00:27:32.000 --> 00:27:37.280
So for example, I've seen a bunch of the hack motion where it shows none of the

392
00:27:37.280 --> 00:27:40.000
golfers going into ulnar past impact.

393
00:27:40.000 --> 00:27:43.280
But I think that the sensor is a little bit heavier, so that could have some

394
00:27:43.280 --> 00:27:44.000
play in it.

395
00:27:44.000 --> 00:27:51.000
In addition, it is measuring at 100 Hertz compared to 240 for AMM.

396
00:27:51.000 --> 00:27:56.170
So there's more frames to show that it continues ulnar deviating until after

397
00:27:56.170 --> 00:27:57.000
impact.

398
00:27:57.000 --> 00:27:57.480
Similar anatomical structures, you want to look at what's happening at the glen

399
00:27:57.480 --> 00:28:05.000
ohumeral joint, what's happening at the thorax.

400
00:28:05.000 --> 00:28:08.840
Common one to look at at the glenohumeral joint is if this is going into

401
00:28:08.840 --> 00:28:14.770
internal rotation, you'll tend to rehinge and kind of pull up as the club

402
00:28:14.770 --> 00:28:16.000
passes your body.

403
00:28:16.000 --> 00:28:20.110
So just because you see the wrist doing a certain thing doesn't necessarily

404
00:28:20.110 --> 00:28:23.000
mean that movement was originating at the wrist.

405
00:28:23.000 --> 00:28:27.850
So again, TPI looks at scooping chicken wing, we're going to look at in

406
00:28:27.850 --> 00:28:33.640
transition, timing of ulnar, and then because that will impact steep shallows

407
00:28:33.640 --> 00:28:35.000
and open clothes.

408
00:28:35.000 --> 00:28:40.000
I look at it as when you ulnar deviate, that tends to open the face.

409
00:28:40.000 --> 00:28:46.000
Oftentimes, you'll have that balance by a little bit of flexing of the wrist,

410
00:28:46.000 --> 00:28:49.000
so it can start to close it as well.

411
00:28:49.000 --> 00:28:55.180
But I tend to find that golfer is lacking ulnar, tend to hit more like club

412
00:28:55.180 --> 00:29:00.440
pulls and pull draws, where as you start to add ulnar, it'll bias a little bit

413
00:29:00.440 --> 00:29:02.000
more towards blocks.

414
00:29:02.000 --> 00:29:09.000
So that also makes me believe that it's more of an opener, but it's debatable.

415
00:29:09.000 --> 00:29:14.980
And then, obviously, power wise, I need to have shaft lean, so I need to have

416
00:29:14.980 --> 00:29:20.000
body rotation in order to handle this flexion ulnar pattern.

417
00:29:20.000 --> 00:29:27.390
And that rotation, body rotation, that's a steepener, so the ulnar is one of

418
00:29:27.390 --> 00:29:34.000
the big shallow movements for getting really good turf contact.

419
00:29:34.000 --> 00:29:39.000
Typically, golfers who lack ulnar tend to get more diggy contact.

420
00:29:39.000 --> 00:29:44.090
Now, I will say this is one of the harder ones to see on video, so I do like to

421
00:29:44.090 --> 00:29:46.000
see this graphically.

422
00:29:46.000 --> 00:29:56.150
But it also is, let's say, it's harder to see some of the key timings for when

423
00:29:56.150 --> 00:30:03.090
I coach ulnar, because you'll see that it's got influence from what's happening

424
00:30:03.090 --> 00:30:07.000
with the elbows, it's got influence from what's happening at the arms.

425
00:30:07.000 --> 00:30:11.480
So some of what's going to take the wrist into ulnar might not actually just be

426
00:30:11.480 --> 00:30:16.100
ulnar deviation, it could be being moved there by what the shoulder is doing or

427
00:30:16.100 --> 00:30:19.000
what the hand is, the opposite hand is doing.

428
00:30:19.000 --> 00:30:26.160
So here we've got grant weight demonstrating that kind of normal pattern or h

429
00:30:26.160 --> 00:30:30.280
inging up towards the top, flat line there in transition, he does have a little

430
00:30:30.280 --> 00:30:35.000
bit of an increase there, and then unhinging until after impact.

431
00:30:35.000 --> 00:30:40.500
Here we've got Henrik Stenson, again, very similar pattern, slight increase

432
00:30:40.500 --> 00:30:44.000
there, and then unhinging until after impact.

433
00:30:44.000 --> 00:30:49.640
And typically the impact will be a little bit greater than we're more ulnar dev

434
00:30:49.640 --> 00:30:52.000
iated than where they start.

435
00:30:52.000 --> 00:30:57.200
And then this is Elkington, so he's going a little bit the other way, so a

436
00:30:57.200 --> 00:31:01.910
little bit of losing that ulnar deviation, but pretty flat line and then ulnar

437
00:31:01.910 --> 00:31:04.000
deviation until after impact.

438
00:31:04.000 --> 00:31:08.910
Okay, ulnar deviation relates to steep shallows a ton, so it relates to low

439
00:31:08.910 --> 00:31:12.000
point control as well as club face control.

440
00:31:12.000 --> 00:31:17.880
Here's Colin, you'll see with most of the poor amateurs you'll see no real flat

441
00:31:17.880 --> 00:31:21.000
line, it kind of comes up, goes down.

442
00:31:21.000 --> 00:31:26.570
So he's increasing it just slightly there, but the other thing you'll see is it

443
00:31:26.570 --> 00:31:29.000
tends to peak right at impact.

444
00:31:29.000 --> 00:31:34.620
So that's when you start to see kind of the club narrowing and having a very

445
00:31:34.620 --> 00:31:38.770
poor arc width, you'll typically see this where it peaks right at impact

446
00:31:38.770 --> 00:31:40.000
instead of afterwards.

447
00:31:40.000 --> 00:31:46.870
I still contend that this is the hardest one to see on video because it's kind

448
00:31:46.870 --> 00:31:56.000
of you're rotating, you look at both angles, because there it almost looks like

449
00:31:56.000 --> 00:31:58.000
he's increasing it.

450
00:31:58.000 --> 00:32:01.480
You know, if you're just looking at the angle of the club, the forearm, or the

451
00:32:01.480 --> 00:32:09.940
very least, it's staying pretty close to the same, but we saw on 3D, that's not

452
00:32:09.940 --> 00:32:11.000
the case.

453
00:32:11.000 --> 00:32:19.000
And that's, I think part of what gives the appearance is how much I have this,

454
00:32:19.000 --> 00:32:25.000
if I simply rotate my body, I didn't change my wrist.

455
00:32:25.000 --> 00:32:29.490
If I have this here and I rotate my body, that gives the appearance of it going

456
00:32:29.490 --> 00:32:30.000
out.

457
00:32:30.000 --> 00:32:35.800
So the more that I rotate my body versus keep close, that influences how this

458
00:32:35.800 --> 00:32:40.000
angle looks, more so than when we're looking at graphs.

459
00:32:40.000 --> 00:32:43.690
I don't think I've said this at any of the presentations, so hopefully you all

460
00:32:43.690 --> 00:32:45.000
are paying attention.

461
00:32:45.000 --> 00:32:52.360
But if we're looking at the graphs here, you know, 10 degrees is pretty

462
00:32:52.360 --> 00:32:54.000
significant.

463
00:32:54.000 --> 00:32:59.000
So real quick, we'll jump back to the video, but when we're looking at scale,

464
00:32:59.000 --> 00:33:03.000
10 degrees would be very significant, right?

465
00:33:03.000 --> 00:33:07.350
So if we saw a 10 degree dip one direction or a 10 degree change another, that

466
00:33:07.350 --> 00:33:09.000
would be very significant.

467
00:33:09.000 --> 00:33:16.000
So I use the reference of a clock, so on a clock, one minute is six degrees.

468
00:33:16.000 --> 00:33:21.000
So 10 degrees would be the change of the clock going a minute and a half.

469
00:33:21.000 --> 00:33:25.450
Some of those are going to look very similar, or sorry, yeah, I mean the

470
00:33:25.450 --> 00:33:31.000
difference of 10 degrees on video could look like a very minimal change.

471
00:33:31.000 --> 00:33:36.860
But there's a phrase that Guy Boya uses a lot that I've heard, which is micro

472
00:33:36.860 --> 00:33:40.000
movement dictates macro function.

473
00:33:40.000 --> 00:33:44.340
So basically, the small little movements at the center of the joint dictate

474
00:33:44.340 --> 00:33:48.540
what direction it's going, and then the big movers can get involved and help

475
00:33:48.540 --> 00:33:49.000
out.

476
00:33:49.000 --> 00:33:51.000
That's kind of similar to thinking.

477
00:33:51.000 --> 00:33:55.720
That's similar to where we've talked about like the deep muscles move the

478
00:33:55.720 --> 00:34:00.000
superficial or deep, you know, think deep versus superficial.

479
00:34:00.000 --> 00:34:05.860
So anyway, when we're looking at these tiny little changes, they can signify

480
00:34:05.860 --> 00:34:09.800
that you're using very different chains or using the chains at different timing

481
00:34:09.800 --> 00:34:10.000
.

482
00:34:10.000 --> 00:34:16.770
Okay, so now let's see, to see the exact timing of the ulnar is tricky, but

483
00:34:16.770 --> 00:34:23.450
typically golfers who have this look of arms bend, you know, some angle there

484
00:34:23.450 --> 00:34:31.030
where those arms aren't really like fully ulnered, they will have more of that

485
00:34:31.030 --> 00:34:35.000
look like this on graphs where it's peeking right around impact.

486
00:34:35.000 --> 00:34:41.010
All right, similar pattern with Mike here, we've got increasing the hinge,

487
00:34:41.010 --> 00:34:42.000
increasing it more.

488
00:34:42.000 --> 00:34:47.220
We saw he gets really kind of cuppy at the top, so that's a pretty big change,

489
00:34:47.220 --> 00:34:48.000
right?

490
00:34:48.000 --> 00:34:53.680
So 50 degrees, he hinges at 70 degrees from where he starts until the top of

491
00:34:53.680 --> 00:35:00.180
the swing for it, which 70 degrees of the total joint range of motion is

492
00:35:00.180 --> 00:35:04.000
typically 25 degrees radial 40 degrees ulnar.

493
00:35:04.000 --> 00:35:10.120
So he hinges at 75 degrees on a joint that has about 60 degrees of, or 65

494
00:35:10.120 --> 00:35:12.000
degrees of movement.

495
00:35:12.000 --> 00:35:17.000
So he gets overly set up at the top, for sure.

496
00:35:17.000 --> 00:35:24.000
And then he unhinges it until right at impact and then loses it after that.

497
00:35:24.000 --> 00:35:30.260
Now part of what allows him to get that extra look of the set is, you can see

498
00:35:30.260 --> 00:35:37.150
that his thumb kind of comes off the grip, so that thumb is not restricting the

499
00:35:37.150 --> 00:35:40.000
amount of reset that he can get.

500
00:35:40.000 --> 00:35:46.000
Kind of baseball grip, it's more on the side.

501
00:35:46.000 --> 00:35:51.650
And then we're going to see that similar look there, where it's just not quite

502
00:35:51.650 --> 00:35:56.530
as much width when you see this narrowing of the arms that's usually

503
00:35:56.530 --> 00:36:02.550
accompanied with a little bit more coming out of the ulnar deviation too soon

504
00:36:02.550 --> 00:36:04.000
through there.

505
00:36:04.000 --> 00:36:08.000
Okay, last one we got run, a little more normal.

506
00:36:08.000 --> 00:36:14.070
Hinge there, but now this will be a fun little demo as well, we can see of all

507
00:36:14.070 --> 00:36:21.000
the golfers we've looked at, he had the most increased hinge during transition.

508
00:36:21.000 --> 00:36:25.190
So you would think that this means he's going to have the most downcock look,

509
00:36:25.190 --> 00:36:28.000
and we can see that he peeks well after impact.

510
00:36:28.000 --> 00:36:37.000
That part, I don't dislike. Okay, this is fake out move.

511
00:36:37.000 --> 00:36:44.080
So as we get up to the top, wait a minute, that looks like he's almost casting

512
00:36:44.080 --> 00:36:54.140
a little bit, but if we had the wrist, part of it is like part of what gives

513
00:36:54.140 --> 00:36:57.000
the appearance of it casting is more what's happening with the straightening

514
00:36:57.000 --> 00:37:01.000
of the elbows and what we will see with the right wrist going this way.

515
00:37:01.000 --> 00:37:11.150
So again, if I increase 10 degrees, which is only a minute, but at the same

516
00:37:11.150 --> 00:37:18.570
time I'm going that way with the elbow and that way with the wrist, you can see

517
00:37:18.570 --> 00:37:23.310
that even though I'm increasing the movement here at the wrist, the overall

518
00:37:23.310 --> 00:37:25.000
system is getting casted out.

519
00:37:25.000 --> 00:37:31.430
So that's where you have to be really careful. So that's where you have to be

520
00:37:31.430 --> 00:37:35.040
really careful with like when you see stuff on video that you're not just

521
00:37:35.040 --> 00:37:39.000
describing what you think you see, but you actually understand what's happening

522
00:37:39.000 --> 00:37:40.000
there.

523
00:37:40.000 --> 00:37:44.450
So even though he's increasing the hinge at the wrist, he does have a cast

524
00:37:44.450 --> 00:37:49.220
pattern because of what's happening with the elbows and the shoulders and the

525
00:37:49.220 --> 00:37:51.000
overall movement system.

526
00:37:51.000 --> 00:37:57.370
So on the way through, you'll see he had the latest look, the latest peak, and

527
00:37:57.370 --> 00:38:03.560
he does have more of it kind of a flat spot. You know, he's consistent, but he

528
00:38:03.560 --> 00:38:10.000
lacks a lot of power, even though he has the most quote lag from wrist hinge.

529
00:38:10.000 --> 00:38:14.990
Okay, now the last one, the pronation supination. So pronation supination is

530
00:38:14.990 --> 00:38:18.000
looking at this movement here of the forearm.

531
00:38:18.000 --> 00:38:25.600
Now the tricky thing is for the forearm pronation supination and the shoulder

532
00:38:25.600 --> 00:38:34.000
internal external rotation, both move this arm sensor, but in theory, on AMM,

533
00:38:34.000 --> 00:38:41.440
if I go like this, that would show up as pronation supination, the same as if I

534
00:38:41.440 --> 00:38:43.000
did this.

535
00:38:43.000 --> 00:38:48.430
So in one sense, the hand isn't moving, the club isn't moving, but the body is

536
00:38:48.430 --> 00:38:53.820
changing, where something like a hack motion, where they're just looking at

537
00:38:53.820 --> 00:38:59.240
global supination, all of these factors are absorbed by that sensor or show up

538
00:38:59.240 --> 00:39:00.000
in that sensor.

539
00:39:00.000 --> 00:39:04.720
So anyway, baseline pattern, we've got about 40 degrees supinated, but that's

540
00:39:04.720 --> 00:39:08.650
because the shoulder is in a little bit of internal rotation, so it's a little

541
00:39:08.650 --> 00:39:10.000
bit more like that.

542
00:39:10.000 --> 00:39:16.470
Then we get pronated during the backswing, and then I like to see some pron

543
00:39:16.470 --> 00:39:23.560
ation about 10 degrees or so in transition. We'll look at some of the timing of

544
00:39:23.560 --> 00:39:29.320
does it pronate right from this top, or does it go kind of steeper and then

545
00:39:29.320 --> 00:39:30.000
pronate late.

546
00:39:30.000 --> 00:39:35.840
That can relate to some of these timings, and then a supinate approximately 120

547
00:39:35.840 --> 00:39:43.450
to 140. So here you can see 26 degrees there to almost 100 degrees there. That

548
00:39:43.450 --> 00:39:49.000
's kind of that 120 amount of supination through impact.

549
00:39:49.000 --> 00:39:53.970
Now it doesn't look that way because the shoulder is going to be a little bit

550
00:39:53.970 --> 00:39:58.470
more stable, hopefully. In fact, golfers who tend to have more external

551
00:39:58.470 --> 00:40:02.000
rotation on the shoulder tend to be lighter on this supination.

552
00:40:02.000 --> 00:40:06.900
Same key anatomical structures, look at the shoulders, look at the elbows, look

553
00:40:06.900 --> 00:40:11.310
at the hands, they're all working in chains to help control the clubface,

554
00:40:11.310 --> 00:40:15.000
create speed, control low point, all those key factors.

555
00:40:15.000 --> 00:40:20.670
So again, steeps and shallows, open clothes, powering with the body versus

556
00:40:20.670 --> 00:40:26.770
powering more with the arms. This one, you can see for sure, shallowing in

557
00:40:26.770 --> 00:40:33.000
transition, and you can see some of the arc with things on the way through.

558
00:40:33.000 --> 00:40:38.950
So this one I do believe in these two big errors. Basically, if you're light on

559
00:40:38.950 --> 00:40:44.000
the supination on the way through, you're more prone to scooping chicken wing.

560
00:40:44.000 --> 00:40:48.090
And I think that's partly because of what we saw with the anatomy of if I start

561
00:40:48.090 --> 00:40:52.150
to go more into extension instead of supination. Remember, the supination

562
00:40:52.150 --> 00:40:55.160
muscles are on this inside here, which connect through the tricep to the inside

563
00:40:55.160 --> 00:40:56.000
of the shoulder.

564
00:40:56.000 --> 00:41:01.000
So connecting through the tricep is going to help extend the arm. If I go more

565
00:41:01.000 --> 00:41:06.610
into extension on the top side, that's going to go more into the deltoid and

566
00:41:06.610 --> 00:41:08.000
kind of this shrug.

567
00:41:08.000 --> 00:41:12.720
If I did that movement, the golf club is pulling away from you or down near

568
00:41:12.720 --> 00:41:17.000
impact with about 100 pounds, 150 pounds of force.

569
00:41:17.000 --> 00:41:23.840
It's a momentary force, but it's still a force. If all I'm doing is pulling on

570
00:41:23.840 --> 00:41:28.730
a cable machine with a little shrug like that, that's going to be a lot tougher

571
00:41:28.730 --> 00:41:33.580
than if I just connected my arm and lean back and use more the mass of my body

572
00:41:33.580 --> 00:41:35.000
to absorb it.

573
00:41:35.000 --> 00:41:39.880
So I think that would make sense to me as something that would be easier for

574
00:41:39.880 --> 00:41:42.000
the body to do consistently.

575
00:41:42.000 --> 00:41:46.250
Okay, so then, grant weight, when it goes up, we got supination, palm up. When

576
00:41:46.250 --> 00:41:48.000
it goes down, we got pronation.

577
00:41:48.000 --> 00:41:54.110
So pronation, and then there's that little shallowing move and then supinate

578
00:41:54.110 --> 00:41:56.000
all through impact.

579
00:41:56.000 --> 00:42:02.080
Similar pattern, gradual pronation, very smooth, continues pronation, and then

580
00:42:02.080 --> 00:42:07.000
good amount of supination for Henrik right there through impact.

581
00:42:07.000 --> 00:42:13.860
Now I've used Henrik in a presentation where if you look at the clubface

582
00:42:13.860 --> 00:42:19.120
closing, if you look at just past impact, his clubface will not be as turned

583
00:42:19.120 --> 00:42:22.000
over as someone like Phil Mickelson.

584
00:42:22.000 --> 00:42:26.550
Even though he has a lot more supination than Phil Mickelson, and Phil Mickel

585
00:42:26.550 --> 00:42:29.000
son has a much higher rate of closure.

586
00:42:29.000 --> 00:42:37.000
So don't think that just because I'm supinating, I'm closing the face rapidly

587
00:42:37.000 --> 00:42:42.660
because what the shoulder does has a big influence on it, and if I still have

588
00:42:42.660 --> 00:42:48.660
some flexion or some lag, that has an impact on how fast it will rotate as well

589
00:42:48.660 --> 00:42:49.000
.

590
00:42:49.000 --> 00:42:55.430
Okay last we got elk. elk has a little bit more of the steep in transition to

591
00:42:55.430 --> 00:42:57.000
shallow late.

592
00:42:57.000 --> 00:43:01.120
Now that makes sense because we saw with the body grafts that he's got a little

593
00:43:01.120 --> 00:43:06.290
bit more of this body shallowing, that's to account for this little steepening

594
00:43:06.290 --> 00:43:11.340
movement or contribute to that steepening movement that he gets early in his

595
00:43:11.340 --> 00:43:12.000
downswing.

596
00:43:12.000 --> 00:43:18.400
And then he does get a bunch of supination, he's about 130 from his peak to

597
00:43:18.400 --> 00:43:21.000
peak, so pretty good there.

598
00:43:21.000 --> 00:43:25.720
And everybody will typically cross impact slightly more pronated than where

599
00:43:25.720 --> 00:43:27.000
they were at setup.

600
00:43:27.000 --> 00:43:31.200
That accounts for having the handle four to six inches closer to the target

601
00:43:31.200 --> 00:43:33.000
than where it was at setup.

602
00:43:33.000 --> 00:43:37.770
Okay pronation supination has big impact on clubface control as well as low

603
00:43:37.770 --> 00:43:39.000
point control.

604
00:43:39.000 --> 00:43:45.000
So supination moves the low point forward and closes the face where pronation

605
00:43:45.000 --> 00:43:51.000
on its own will move the low point backward and open up the face.

606
00:43:51.000 --> 00:43:57.500
So golfers who lack this supination can sometimes struggle with turf contact,

607
00:43:57.500 --> 00:44:03.000
so scooping and chicken wing I do agree in this particular case.

608
00:44:03.000 --> 00:44:07.720
All right let's look at pronation supination so this is kind of a common

609
00:44:07.720 --> 00:44:14.140
amateur pattern, a little bit less supination to start because the shoulder is

610
00:44:14.140 --> 00:44:19.000
a little bit more internally rotated or the arms a little bit more at the side.

611
00:44:19.000 --> 00:44:25.500
So the top starts to get steep and then shallows late and then he's got decent,

612
00:44:25.500 --> 00:44:29.000
decent supination on the way through.

613
00:44:29.000 --> 00:44:34.980
This is a little maybe on the light side you know he's closer to 100 110 you

614
00:44:34.980 --> 00:44:40.730
know it doesn't get quite as high as the 100 degrees that we were seeing with

615
00:44:40.730 --> 00:44:44.000
more of the pros but overall not terrible.

616
00:44:44.000 --> 00:44:49.410
All right so let's see what that looks like graphically or visually I should

617
00:44:49.410 --> 00:44:50.000
say.

618
00:44:50.000 --> 00:44:55.230
There's kind of that steepening movement and then boom there is where he gets

619
00:44:55.230 --> 00:45:00.000
into that later shallowing and there's kind of on the way through.

620
00:45:00.000 --> 00:45:05.000
So this is a good place to kind of see some of the supination amount.

621
00:45:05.000 --> 00:45:12.000
The other one that I'll typically use so there's steep there's shallow.

622
00:45:12.000 --> 00:45:16.720
And then typically golfers who are on the lighter side of supination you can

623
00:45:16.720 --> 00:45:21.000
kind of look at where is the wrist pointing compared to the elbow.

624
00:45:21.000 --> 00:45:27.470
You can't quite go off of just which glove in the to glove case is the trail

625
00:45:27.470 --> 00:45:34.450
hand above the lead hand or vice versa because of how the that could be how the

626
00:45:34.450 --> 00:45:38.000
trail hand is moving not the supination of the lead hand.

627
00:45:38.000 --> 00:45:42.000
It's a decent indicator but it's not 100%.

628
00:45:42.000 --> 00:45:49.230
Okay Mike has that classic same late shallowing so pronation really late dip

629
00:45:49.230 --> 00:45:55.450
that can be a powerful movement but that also screams steep early shallow late

630
00:45:55.450 --> 00:45:58.000
which can be a consistency issue.

631
00:45:58.000 --> 00:46:03.280
And then he again is on the lighter side of total supination so you know

632
00:46:03.280 --> 00:46:09.990
somewhere 10 degrees there to this peak being about 80 so he's only going about

633
00:46:09.990 --> 00:46:11.000
90.

634
00:46:11.000 --> 00:46:14.000
Let's see what that looks like.

635
00:46:14.000 --> 00:46:19.830
And hopefully you got a pretty clear sense of there's the steep and there's

636
00:46:19.830 --> 00:46:26.000
that later shallow down through there called face open let's slam it shut.

637
00:46:26.000 --> 00:46:30.000
Okay so then on the way through.

638
00:46:30.000 --> 00:46:32.000
Remember he had.

639
00:46:32.000 --> 00:46:38.000
He looks like he has more supination than Colin.

640
00:46:38.000 --> 00:46:42.000
So let's actually bring up Colin and compare these so you can see.

641
00:46:42.000 --> 00:46:46.720
Okay so this is where the graph is a whole lot easier than trying to decode

642
00:46:46.720 --> 00:46:48.000
this on on video.

643
00:46:48.000 --> 00:46:52.720
So if you recall this looks like he has more supination but the graph shows

644
00:46:52.720 --> 00:46:54.000
that he has less.

645
00:46:54.000 --> 00:46:58.970
So where he where you would start to see that he has less is if you could see

646
00:46:58.970 --> 00:47:04.030
the elbow you would notice that we can see a little bit more of the inside of

647
00:47:04.030 --> 00:47:06.000
the elbow here than there.

648
00:47:06.000 --> 00:47:10.720
So his shoulder he did a better job of keeping his arc with so his shoulder

649
00:47:10.720 --> 00:47:16.000
stayed more in front but his shoulder went into more internal rotation this way

650
00:47:16.000 --> 00:47:18.000
through here.

651
00:47:18.000 --> 00:47:23.330
So watch his elbow you can see elbow pointing at the target and then very

652
00:47:23.330 --> 00:47:26.000
quickly elbow is pointing behind.

653
00:47:26.000 --> 00:47:30.220
We'll see maybe just a little bit less here elbow pointing at the target still

654
00:47:30.220 --> 00:47:34.310
pointing at the target not really pointing as much behind so he kind of held

655
00:47:34.310 --> 00:47:38.140
his shoulder through there so he got a little bit more of that turnover

656
00:47:38.140 --> 00:47:40.000
happening at the forearm.

657
00:47:40.000 --> 00:47:44.270
So we had more supination even though it looks like the hand is in a less sup

658
00:47:44.270 --> 00:47:48.750
inated position that's because we have to factor in what's happening at the

659
00:47:48.750 --> 00:47:50.000
shoulder as well.

660
00:47:50.000 --> 00:47:54.290
So this is one where if you have access to it the graph makes it a whole lot

661
00:47:54.290 --> 00:47:58.000
easier to look at the pattern than just looking at video.

662
00:47:58.000 --> 00:48:05.680
All right and then last we got run so pretty neutral here it set up that could

663
00:48:05.680 --> 00:48:10.140
be the overall pattern looks like it's shifted that way I could have possibly

664
00:48:10.140 --> 00:48:13.000
had a digitization error there myself it happens.

665
00:48:13.000 --> 00:48:18.670
But the pattern will be the same no matter what so we've got no shallowing

666
00:48:18.670 --> 00:48:25.200
movement there and light you know he's going 100 degrees or so not not really

667
00:48:25.200 --> 00:48:27.000
that 120 zone.

668
00:48:27.000 --> 00:48:31.800
But we already saw he gets to a decent follow through position let's take a

669
00:48:31.800 --> 00:48:36.080
look at it okay so if we go up towards the top take a look at the back of his

670
00:48:36.080 --> 00:48:38.000
hand compared to his elbow.

671
00:48:38.000 --> 00:48:44.400
You'll see that elbow pulls more down so he shallows more with some of the body

672
00:48:44.400 --> 00:48:49.000
movements he didn't really shallow with the forearm.

673
00:48:49.000 --> 00:48:58.940
Right that's why we see a gradual steepening there and then if we go through

674
00:48:58.940 --> 00:49:00.000
impact.

675
00:49:00.000 --> 00:49:04.890
You don't see a lot of supination it looks like more of the rotation is

676
00:49:04.890 --> 00:49:06.000
happening.

677
00:49:06.000 --> 00:49:10.000
Actually it's not too bad it's probably about 50 50.

678
00:49:10.000 --> 00:49:14.530
But he is having a little bit more shoulder movement than I would typically

679
00:49:14.530 --> 00:49:18.970
like to see that's probably why the supination value is a little bit on the

680
00:49:18.970 --> 00:49:20.000
light side.

681
00:49:20.000 --> 00:49:25.060
So we've got the three pros up again you can see a very similar harmonic

682
00:49:25.060 --> 00:49:30.000
pattern here they look like a very good clean kinematic sequence.

683
00:49:30.000 --> 00:49:35.040
That will only happen if they've inverted the graphs like they did on AMM but

684
00:49:35.040 --> 00:49:40.930
hopefully you can recognize the patterns which look pretty good regardless of

685
00:49:40.930 --> 00:49:43.000
how it's presented graphically.

686
00:49:43.000 --> 00:49:48.880
If we compare those to the amateurs you can see there's usually more messiness

687
00:49:48.880 --> 00:49:51.000
going on with the amateurs.

688
00:49:51.000 --> 00:49:57.290
The peaks can be off the slopes can be a little bit off but this just kind of

689
00:49:57.290 --> 00:50:03.670
shows how the golfer is controlling the face how the golfer is organizing the

690
00:50:03.670 --> 00:50:06.590
path and you can relate that to what they're doing kinematic sequence or body

691
00:50:06.590 --> 00:50:10.000
pivot wise to see how the whole puzzle fits together.

692
00:50:10.000 --> 00:50:14.790
So as always if you have a question about anything I covered here please let me

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00:50:14.790 --> 00:50:17.000
know so we can get a clarification.

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00:50:17.000 --> 00:50:21.100
Otherwise stay tuned for the next presentation where we're going to go over the

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00:50:21.100 --> 00:50:22.000
trail wrist.

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00:50:22.000 --> 00:50:26.000
Until then enjoy the journey. Happy golfing.