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Post by dubiousgolfer on Nov 20, 2019 20:35:15 GMT -5
Claims by Brandel that Danny Lee has utilised gravity to increase his driving distance about 27 yards since 2018 (PGA stats below): www.golfchannel.com/video/2019-brandel-chamblee-breaks-down-danny-lee-swing2018 : Driver Distance = 290.6 yds /Rank 148th, Driver Accuracy = 62.65%/Rank 86th Current : Driver Distance = 317.4 yds /Rank 19th, Driver Accuracy = 57.57%/Rank 176th . So although Danny Lee has increased his distance , Brandel failed to mention that DL's driving accuracy seems to have suffered. I am assuming that Brandel might be using 'GFR' forces to explain DL's increased driving distance but there seems to be no logic in his explanations (examples below) : "You've got gravity, you can fall into it" "He can fall into the ground" "Force Couple' "Scissoring effect" I don't know the reasons why Danny Lee has increased his driving speed (yet ) and I'm checking out his swing in 2018 vs 2019 but what I have noticed is that he seems to have an unchanged roller release hand action. So I am assuming that although he has increased his driver speed , this has made the timing aspect of club-squaring even more timing dependent than before which has resulted in decreased driving accuracy. Shawn Clement seems to be a fan of Brandel's golf analysis from his recent video below. DG
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Post by imperfectgolfer on Nov 21, 2019 0:05:16 GMT -5
Brandel Chamblee's explanation makes no sense to me!
Jeff.
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Post by syllogist on Nov 21, 2019 9:37:06 GMT -5
Hi DG,
I'm impressed that Brandel has discovered that when one rotates, one's feet will exert a force on the ground.
As for Lee, apparently he's working with George Gankas to increase his swing speed. I saw that Lee practices Gankas's "helicopter" drill where he first takes the club vertically without turning, then turns to the top of the swing, and then rotates as fast as he can as if he were a blade of a helicopter. He claims to be able to produce 130 mph this way with a driver but is comfortable on the course at 117 to 118 mph.
My unwaivering conclusion: Assuming no speed-sucking flaws, to increase clubhead speed, one must increase rotational speed - Torso-M as MacKenzie used in his study.
S
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Post by imperfectgolfer on Nov 21, 2019 10:12:19 GMT -5
S,
You wrote-: "I'm impressed that Brandel has discovered that when one rotates, one's feet will exert a force on the ground."
What impresses you? How can the feet not exert a force on the ground when one rotates the body during a full golf swing action, and even Brandel must surely be aware of that fact?
By the way, when you look at Brandel perform his golf swing in that video (in order to demonstrate his "scissors move"), did you note that he does not straighten his right leg during his backswing action or extend his right mid-upper torso and he also does not even fully straighten his left leg during his late downswing and through impact. In other words, he never demonstrated any of the biomechanical movements that he stated are so useful!
Jeff.
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Post by dubiousgolfer on Nov 21, 2019 17:34:22 GMT -5
Hi DG, I'm impressed that Brandel has discovered that when one rotates, one's feet will exert a force on the ground. As for Lee, apparently he's working with George Gankas to increase his swing speed. I saw that Lee practices Gankas's "helicopter" drill where he first takes the club vertically without turning, then turns to the top of the swing, and then rotates as fast as he can as if he were a blade of a helicopter. He claims to be able to produce 130 mph this way with a driver but is comfortable on the course at 117 to 118 mph. My unwaivering conclusion: Assuming no speed-sucking flaws, to increase clubhead speed, one must increase rotational speed - Torso-M as MacKenzie used in his study. S Hi S Just found the instagram video demonstrating the helicopter drill but found it baffling how it could help to create extra clubhead speed. I can only assume that by taking the arms up so vertical and then turning creates a steeper backswing plane and higher hands. Maybe Danny Lee has created some extra distance over which to apply PA#4 (especially the downward component) and create some extra speed before PA#2 release (unsure until I get a better look at his before and after swing). http://instagr.am/p/BbUjCl8F4dD DG PS. Just found the whole You-Tube video below He seems to infer from 13:00 onwards that his 'vertical arm/club lift' and then 'rotate' creates internal rotation of his right humerus that assists him to create a fuller turn . Further ,he says because he gets this full turn , he is standing up and that the key to creating speed is standing up and then getting down in the ground. That this standing and sudden getting down will creates a 'stretch' in his left shoulder girdle muscles that apparently slings his arm into the ball. I'm finding his explanation and style of instruction extremely confusing but I do get a sense that his golf swing philosophy is about using body rotation/squatting to somehow create passive external rotation of the right humerus to shallow the clubshaft in the downswing (using the inertia of right arm and club unit). I'm surprised that the MeAndMyGolf team seem to understand the logic of what GG is saying or are they just assuming they know? DG
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Post by imperfectgolfer on Nov 22, 2019 0:56:00 GMT -5
DG,
I have zero sympathy for that "Gankas Move" and I don't believe that it makes sense from a theoretical or practical perspective.
Jeff.
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Post by syllogist on Nov 22, 2019 7:44:37 GMT -5
Dr. Mann,
I was being facetious when I stated that I was impressed with Brandel. Brandel was just regurgitating pop theory about how one is "supposed" to generate GRF. The feet exerting a force on the ground is evident each time we see, for example, the trail foot slip during a drive on a muddy or wet tee box. It's come to the point where biomechanists explain to us in which direction our feet "must" exert force in order to accomplish rotational or linear movement as if without such knowledge we cannot accomplish such movement. I did take note that Brandel was short of achieving the "perfect" biomechanical movements to remain competitive on 7,600 yd. courses.
I, too, am not impressed with the Gankas drill. Golf instructors see to come up with a drill for everything.
S
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Post by syllogist on Nov 22, 2019 8:14:25 GMT -5
Hi DG,
Hi hands are what we see when the position of the hands are on a steeper plane at the top in relation to the ball. I don't think that such matters in terms of having greater distance over which the hands are able to travel during the downswing. To have greater distance for travel of the hands, which is ultimately a greater distance over which to accelerate, factors are the degree of shoulder rotation (and ideally torso rotation) and the adduction angle of the left arm. Even with the potential of greater hand travel, one must still increase acceleration to achieve greater clubhead speed.
S
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Post by dubiousgolfer on Nov 22, 2019 9:57:26 GMT -5
Hi DG, Hi hands are what we see when the position of the hands are on a steeper plane at the top in relation to the ball. I don't think that such matters in terms of having greater distance over which the hands are able to travel during the downswing. To have greater distance for travel of the hands, which is ultimately a greater distance over which to accelerate, factors are the degree of shoulder rotation (and ideally torso rotation) and the adduction angle of the left arm. Even with the potential of greater hand travel, one must still increase acceleration to achieve greater clubhead speed. S Hi S Found this video below and I think the 'left frame is 2019 swing' vs 'right frame 2018 swing' . At P7 at 1:50 his right heel is raised compared to the flat right foot in 2018 swing. At 1:56 for his 2018 driver swing you will notice that his right foot is still flat on the ground (compared to the left image) even though he's followed-through more. It looks like he used to retain a lot of COP towards his right leg from P5-P7 whereas in current swing he is progressively shifting COP more towards his left leg It could be that he has improved his lower and upper body pivot action which has helped him optimise the release of PA#4 . DG
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Post by imperfectgolfer on Nov 22, 2019 10:26:39 GMT -5
DG,
I was not previously familiar with his golf swing (which is excellent) and I can see no evidence that he is performing the biomechanical actions described by Brandel during his backswing - i) straightening his right knee + ii) stretching out his right mid-upper torso + iii) elevating his left heel. He appears to be using a standard rightwards-centralised backswing action.
The fact that his right heel is fully planted at impact while his left foot becomes airborne with a counterclockwise spin of his left heel makes me think that he could be a "reverse foot" golfer.
I cannot identify any biomechanical explanation that accounts for his increasing driving distance. I wonder if he is simply rotating his pelvis/torso faster in 2019 than he was in 2018. Brandel describes a "scissors motion" of his legs, but that happens in the late downswing and I cannot envisage how it can cause increased clubhead speed.
Jeff.
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Post by syllogist on Nov 22, 2019 10:45:37 GMT -5
Hi DG, After viewing Lee's swing. I share Dr. Mann's sentiments exactly. As a side note, Lee injured his back a couple of years ago - partially torn ligament. In any event, he's very talented.
S
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