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Post by syllogist on Oct 23, 2019 12:26:58 GMT -5
www.youtube.com/watch?v=eT7qWEm_zB0Dr. Mann, This URL shows Rory's iron swing from down the line in slow motion. To me, it's a marvelous swing and one that is easy to see and comprehend in terms of his "release mechanics." Heading to the release point, the club is more or less aligned with the right forearm and guided by the path of the forearm to deliver an "underhand blow." For the most part, he's not required to rotate his arms longitudinally; his arm rotation appears largely to be the result of upper body rotation to approximately 45 degrees open by impact. Release of the right hand appears to be standard flexion and ulnar deviation. Many tour players exhibit the same release and squaring characteristics with minor variations in positioning. As I know that you've used certain terms to differentiate release types, I'm curious what type you attribute to Rory and how the other types may be markedly differently. In other words, are the various release types really all that different? Thanks. S
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Post by imperfectgolfer on Oct 23, 2019 13:35:27 GMT -5
www.youtube.com/watch?v=eT7qWEm_zB0Dr. Mann, This URL shows Rory's iron swing from down the line in slow motion. To me, it's a marvelous swing and one that is easy to see and comprehend in terms of his "release mechanics." Heading to the release point, the club is more or less aligned with the right forearm and guided by the path of the forearm to deliver an "underhand blow." For the most part, he's not required to rotate his arms longitudinally; his arm rotation appears largely to be the result of upper body rotation to approximately 45 degrees open by impact. Release of the right hand appears to be standard flexion and ulnar deviation. Many tour players exhibit the same release and squaring characteristics with minor variations in positioning. As I know that you've used certain terms to differentiate release types, I'm curious what type you attribute to Rory and how the other types may be markedly differently. In other words, are the various release types really all that different? Thanks. S Regarding your bold-highlighted statement "that implies that Rory does not have to rotate his left arm longitudinally in order to square his clubface by impact" - I think that it is totally wrong! Here is the Rory McIlroy video.
Here are capture images from the video. Image 1 is at P6 and image 2 is at impact.
Note that his clubface is parallel to the back of his left hand at P6 and both are parallel to the ball-target line.
At impact, the back of his left hand and clubface both face the target, and they are both roughly perpendicular to the ball-target line, which means that there has been roughly 90 degrees of rotation of the back of his left hand between P6 and impact. Virtually all of the rotation of his left hand is due an anticlockwise rotation of his left forearm because he does not externally rotate his left humerus much anticlockwise during the P6 => P7 time period. The fact that his pelvis and upper torso are more open at impact (when they were roughly parallel to the ball-target line at P6) is irrelevant because body rotation between P6 and impact does not cause the clubface to rotate closed relative to the clubhead arc. You need to watch my following video.
Between the 30:10 minute and the 34:20 minute time point, I demonstrate that body rotation does not square the clubface.
Jeff.
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Post by dubiousgolfer on Oct 23, 2019 18:27:57 GMT -5
Hi S
I've viewed the above video several times and it's really excellent.
DG
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Post by syllogist on Oct 24, 2019 8:12:25 GMT -5
Dr. Mann,
What I had in mind with the body affecting face closure was the closure of the face along the swing arc in relation to one point on the arc - the ball. However, after further reflection, rotation of the upper body serves to "advance" the arms/hands along the swing arc.
DG,
He has quite the "wallop" for his stature which is why I find his swing interesting. Impressive rotational speed during left arm abduction phase well worth emulating. I'm not sure how the players with upright swings and less forward bend do it!
S
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