WEBVTT

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In this analysis video, we're going to take a look at power sources and how

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they affect the golf swing.

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If you remember from the concept video, we're going to essentially break the

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body down into three different segments.

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So we're going to look at the lower body, the core, and then the shoulders and

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the arms.

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These are the three major segments that can create speed, and we're going to

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see how they work during transition.

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So first, we have two examples. We have Adam Scott and Rory McElroy.

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So we're going to go up to the top of the swing and look at their transition.

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Now, if you remember from the concept video, or if you've looked at a lot of k

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inematic sequence,

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you can see that the maximum acceleration for the lower body is going to

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typically happen right about there.

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Followed by the chest, right about there, followed by the lead arm, right about

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there.

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So what you'll see is that the majority of the speed creation is occurring in

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the early part of the downswing,

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and then the second half of the downswing, the release, is going to be more

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continuing to build that power,

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but more effectively transferring that power as efficiently as you can to the

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club head.

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So if we take a look at Adam Scott from the top of the swing, you'll see his

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lower body begin to rotate first,

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followed by his chest rotating kind of right in that area.

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And that brings his arms into the delivery position so that they're ready to

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fire.

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So he's primarily getting his speed through the big muscles in his hips and the

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big muscles in his trunk and shoulder blades.

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He's then using his arms down during the release to transfer that speed to the

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golf ball.

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Over here on the right, we're going to have a face-on view of Rory Macquarie so

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we can see the same thing.

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You can see as the club is still going backwards, his lower body is starting to

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translate and rotate,

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and then you'll see his trunk starting to unwind kind of right in there.

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So he gets into that similar delivery position that Adam Scott was in with some

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minor style differences,

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but a similar way of getting there using the lower body in the trunk.

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Those tend to be the biggest sources of power, but we'll get into some others

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as we go through other examples of how to create power.

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And one of the things that I stress is that the most consistent and the most

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powerful golfers tend to use their entire body.

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Now one of the ways that I like to look at power is doing this little kind of

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scrubbing the clip back and forth.

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Kind of like so, or almost like a little pump drill.

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And looking for where the majority of the movement is happening and then

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imagining if it was part of an exercise, what muscles would they be using.

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So over here on the left we can see Graham McDowell and you can see that there

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's a lot of movement from his hips and legs.

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There's not a lot of movement from his trunk, and there's actually a fair

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amount of movement in the trail elbow.

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If you were to, I should say, trail shoulder.

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If you were to look at this little window right here, you'll see that that

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right arm is kind of getting in position behind the shaft so that he'll have

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something that he can then push with.

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And so what you'll see is during this early part of the downswing, it's largely

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driven by the lower body, but with kind of a secondary accomplice of the

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shoulder.

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Now if we go over here and we look at Jason Day, we're going to pump through

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kind of that same window.

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Now what we'll see with Jason Day is you'll see a similar movement of the lower

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body because it's very hard to be a good driver of the golf ball without having

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your lower body initiate the downswing.

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And he's doing it in a little bit of translation which we can't see from this

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view, but he's also doing it in rotation.

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Now what we can see with his is one of his big secondary movements is that

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upper body is starting to back up.

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So if I were to draw this box just to give us a line of where his head is, you

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'll see that as he starts down, he's going into a little bit more of a back

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extension.

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So if we were to look at this area right in here, you'll see that yes, the

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lower body is rotating, but his back is going into more of a reverse thrust or

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an extension movement.

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Compare that with Graham McDowell over here on the left where his lower body is

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rotating and his trunk is actually flexing a little bit more down.

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So this is just going to lead towards different consistency patterns and path

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issues.

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Typically, the more that we go into extension early, I'll add Jason Day on the

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right, the more that the path is going to come from the inside, at least from

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the body's perspective.

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He could easily make adjustments with the arms to change the path, but if

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everything stayed the same, that simple extension is going to cause the path to

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be a little bit more shallow.

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Over here on the left, that simple flexing down would be a little bit of a

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steepening move, which unless he did something else would cause the path to be

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a little bit more steep and a little bit more left.

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You'll see that in Graham's case, he then uses a fair amount of side bend and

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translation to accompany that movement, which is great for driving the ball,

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and part of the reason why he is one of the more consistent drivers of the golf

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ball.

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Over here on Jason Day's side, you will see that he has a little bit less of

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that, but still gets into very good impact alignments and uses his arms in a

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little bit more vertical fashion than what Graham McDowell is doing.

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So we'll just simply adjust his ball flight and cause him to be a little bit

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more erratic off the tee.

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Now let's take a look at Jason Duffner, and we'll start to do some comparisons

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more with different power sources reflected in different parts of the game.

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So on the left, we have Jason with a driver, and you'll see that lower body

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during this little pump move has a fair amount of translation to where average

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is somewhere around four to five inches.

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You'll see that basically it's about, if you imagine that a pelvis is roughly

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12 inches wide, then typically it's going to be about a third to a half of a

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pelvis width that he's going to shift.

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So you can see that his lower body is initiating the downswing, but you can

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also see if you look at his trunk that in terms of what looks like it's moving

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a greater amount of movement or moving faster, you would tend to see that his

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shoulders and his left

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are flat, so where I would be looking would be kind of in this zone right in

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here, and as he shifts onto his left side, you'll see that that tends to unwind

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almost faster than his lower body.

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So if you come over here to the one on the right, we'll see even less a drive

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from the lower body, and you can see right through here, right in this phase,

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you can see a fair amount of movement in the lead shoulder and arm.

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If you look at how much is going on right in here, during this little phase,

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you'll see that the lead arm is getting pulled a little bit away from the upper

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body and the upper body is rotating fairly aggressively.

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Not so much that he's driving with his lower body, so when looking at this, I

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would say that he's using more of his core and his shoulders to create the hit,

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especially with the iron, and he's using a little bit more lower body, but as a

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whole he tends to have more of a core or shoulder dominant pattern.

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Now let's take a look at Lee Westwood, because he does something that's a

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little bit different than the typical Tour Pro, so we're going to look at his

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power sources through the transition, and you'll see that his lower body is

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going to initiate, but you can see that that lead arm is getting pulled off the

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upper body fairly quickly.

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So he's another kind of Jason Duffer shoulder dominant player, but instead of

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having his dominant core movement be rotation, you'll see that he's doing more

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of a flex, or almost a crunch.

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Now it gets exaggerated as he gets towards impact, but you can see him really

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starting the movement right about here.

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That's where he's doing more of a crunch with his core, as opposed to a

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rotation, or a back extension in the Jason Day case.

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So here we'll see the lower body pushing fairly aggressively, but it doesn't

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rotate a ton because he's turning that push into more of this crunch motion

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through the core.

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It's one of the reasons why the hips are kind of a bridge joint, as they can

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either work to support the core, or to support the lower body.

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You'll clearly see that arm getting pulled right through here, so he's more of

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that lead shoulder kind of chop mechanic, and you can see him going into that

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fairly aggressive crunch, which gets his chest very close to the golf ball.

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This pattern would tend to be better with the short irons and have a little bit

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more trouble off the tee, but Lee Westwood has been a pretty good ball striker

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for the last decade, so he shows that regardless of what the tendencies are,

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you can make virtually anything work.

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Now, well, most golfers will have a dominant power source, or a cluster of

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dominant power sources.

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What you'll see is that the best players in the world are able to adjust their

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power sources depending on the requirements for that particular shot.

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So here we have former number one Luke Donald, and over on the right we have a

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driver swing and over on the left he's hitting a wedge.

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What you'll see is with his driver swing, his natural dominant power source is

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going to be very much a lower body jump, or a vertical movement of a lower body

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, combined with a side crunch, or right side bend from his upper body.

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So as we get him to delivery position kind of right in here, you can see that

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his left shoulder has already gotten high, and he's had a ton of vertical

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thrust through his legs.

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Now over here with the wedge, what you'll see is that he doesn't use his lower

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body in quite the same vertical fashion, in fact he uses it in more of a

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rotation.

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So when we get the hands at the same point, you can see that his right shoulder

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is actually still higher than his left, because he hasn't really used his core

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in a right side bend fashion, he's used it more in a rotational fashion.

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You'll also see that even though the lower body is moving, it's not really

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driving the movement.

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As we continue down, you'll see that it's more his extension of his right arm,

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combined with that rotation of his chest, that is really his engine for this

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wedge shot.

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Where, over here on the right, you can clearly see that it's his lower body and

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his side bend from the core that is driving this movement, and then the arms

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extend much later as a method of transferring the speed.

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So while it's important to recognize your dominant power source and what its

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strengths are, it's also important to be able to shift power sources if you

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want to reach your ultimate potential.

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And I'm sure some of you are wondering about special populations, so let's take

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a look at some golfers from the senior tour, and then a few golfers from the L

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PEA tour.

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You'll see that the tendency that we're looking for is to use your entire body.

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So here we have Bernhard Longer, who's done very well on the senior tour, and

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you'll see that it's that lower body driving, combined with his core rotation,

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and a little bit of side bend because he's hitting it off the tee.

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But it's primarily that lower body and core that's driving the initial part of

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his downswing.

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Over here on the right, we have Gary Holberg, who's another great ball striker

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on the senior PGA Tour.

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As we take him up to the top of the swing, you'll see that lower body and core,

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again controlling and driving the majority of the swing, or at least the early

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part where he's creating speed, and then his arms are going to transfer that

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speed much later down in the swing.

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And a couple more from the senior PGA Tour, so here we have Tom Watson, who's

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kind of the ageless one who's still able to compete on the regular tour, at

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least at the British Opens.

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You'll see that even though he has a very vertical arm height, you'll see that

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he tends to get that early movement from his lower body, followed by that

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rotation of his trunk and his core.

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So he has that early lateral movement and rotational movement from the pelvis,

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and then rotation from the core, and then he transfers that speed and energy

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through his arms and hands during the hit.

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Over here on the right, we have the unorthodox swing of Jim Thorpe.

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So we will see that lower body initiate the movement, followed by kind of a

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crunch and big side bend from the upper body.

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So he tends to get a lot of his power from his hips and trunk, and I know that

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we're talking about power here, but it'd be hard to not mention the

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exaggeration of his motorcycle move during the downswing and through the hit.

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So it shows that a lot of these pieces can be seen and applied, even in the

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more unorthodox swings.

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And let's take a look at a few LPGA swings.

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Now one of the things that's worth noting is, if we look at muscle fiber

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composition, in general, ladies are going to have, compared to the average male

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, about 70% of the muscle fibers in their lower body, and about 50% of the

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number of muscle fibers in their upper body.

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So proportionately, their lower bodies are going to be stronger.

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As a result, you're going to see more lower body dominant swings, but as Susan

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Patterson demonstrates here, they're going to be blended with the core and the

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upper body.

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In fact, she has a little bit more upper body involvement, as you can see that

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shoulder and lap pulling kind of right in here than your average LPGA girl.

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Over here on the right, we have Lexi Thompson as one of the examples of someone

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who has a very lower body dominant swing.

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So you can see a ton of lower body rotation and a ton of that trunk side bend.

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Those two things create a lot of speed, and then she uses a little bit of that

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vertical thrust and lip as she transfers the energy into the golf ball.

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But just because a woman tends to have an advantage in the lower body does not

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mean that they will fall pervy and only use it.

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So over here on the right, we have an amateur relative beginner who's

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controlling more of the swing with the upper body rotation.

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You can see that lead shoulder rotating around and that trail arm kind of

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pushing against the club.

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While over here on the left, you would see a little bit more of the typically

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expected over use of the legs and the lower back as a way to create speed,

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which will tend to cause, in her case, too much of a shallow angle of attack.

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So here we have two older gentlemen who have more of an upper body dominant and

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more of a crunch dominant swing.

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So they would fall into the category of more of a Lee Westwood, except for the

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fact that they don't use their lower body quite as much as Lee Westwood, so it

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becomes very upper body dominant.

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You'll tend to see that people who stand up in their backswing are going to be

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loading this kind of chop movement, so you'll see that he's doing more of a

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lead arm pull and an upper body crunch to create the speed, and then he has to

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stand up and flip his hands late in order to get that speed that he's created

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somewhere around the golf ball.

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We can see a similar pattern here, so if we go into the backswing you can see a

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stand-up followed by that chop movement, and even though he gets the club on a

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decent path, because of the chop movement being his dominant power source, he's

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not going to be able to have the angle of attack to have the amount of side

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bend and the bottom of the swing out in front of the golf ball.

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So he tends to struggle with thin and top shots as he's demonstrating here.

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Now while power sources are very primal and tied to pressure and they're

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extremely important, I want you to use a little example to show you that they

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're not everything.

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So over here on the right we have a golfer who's using primarily a power source

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movement of back extension and side bend.

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So you can see that that back extension and side bend is going to cause a path

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that's going very into out and he hits some pretty big hooks.

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Now if we wanted to change his path, we would actually have to change some of

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his power sources because his power sources are creating a very shallow path,

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and his club is following along because he's doing a pretty good job with his

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arms and hands to work with that.

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Over here on the left we have a golfer who's using more of a stand up move and

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lower body rotation.

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So if we just knew those two pieces, we would say this person's probably going

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to have a very into out path, but you'll see that because of how he's using his

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arms to control the path of the club, he actually has a very out to end path.

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So in the person on the left, changing his power sources would not necessarily

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be required.

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We would have to work on how he's controlling the path with the movement and

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the arms that we teach and transition.

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Over here on the right, if we wanted to improve his path, the best long term

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results would be changing the power sources because when he gets under pressure

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, his dominant power sources are going to make his path worse.

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Where over here on the left, his dominant power sources are actually going to

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help with his path as he figures out what to do with the arms.

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Now here we have a couple examples of how power sources can cause major

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inconsistencies.

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And one of the most common is if we look at the center of your thorax, under 3D

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this is going to move a relatively small amount.

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Half inch in the backswing, maybe 2 inches to its furthest point during the

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downswing, and then it actually comes back a little bit through the release.

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So it doesn't move a whole lot.

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You'll see in both these cases, the gentleman on the right is going to move his

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thorax a good amount from the top of the swing.

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So his power source is causing major inconsistencies and changes in his path

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because he's using the power source of basically an upper body lunge, almost

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like he's holding on to a cable and then just falling away from it as he's

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pulling.

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Sir Charles over here on the left, you'll see he's using a very exaggeration of

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that chop move or crunch move, and you'll see that he's using a little bit of

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trail arm external rotation, which also steepens the shaft.

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So his 2 power sources get the shaft extremely vertical in an basically unplay

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able path, and then he has to do this major adjustment during the release.

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So there are times when the power source is causing the consistency problem,

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there are times when the power source is not controlling the consistency

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problem.

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And the thing to look at is using the steep and shallow flowchart are your

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power sources related to your path issues.

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If they are, then that's something that you'll have to work on from a power

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perspective.

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If they're not, then it's more something that you'll have to work on from a

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control of the path perspective.

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And lastly, let's strengthen this idea that different power sources work well

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for different shots. So over here, we're going to take a look at a couple

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different chip shots.

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So we have Ernie Ells on the left and Luke Donald on the right.

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And basically what you'll see is the majority of this strike is controlled by

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rotating his upper body and straightening his trail arm.

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So you can see that upper body rotation and that trail arm straightening tends

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to move a lot more than his lower body.

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For these short game shots, such as the finesse wedge and the distance wedge,

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you'll see that the lower body is more of a balance and support for the upper

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body to be the power source around.

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One of the biggest issues that I see with people who struggle around the greens

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is typically using that lower body or the hips as a power source instead of

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just letting the upper body rotate or the arms control the shot the way that

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Luke Donald and Ernie Ells are demonstrating here.

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So if you're having issues with getting your path or your face under control,

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always take a look at the first half of the downswing and you can get a good

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idea as to how your power sources may be making the situation easier or harder

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for your specific issue.