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Post by dubiousgolfer on Jul 22, 2024 13:03:58 GMT -5
Dr Mann
Do you have any opinions regarding Chris Ryan's video?
Surely there are other biomechanical movements, other than his demonstration where he pronates the lead arm/forearm, that may cause the hands to move towards the ball-target line from its position at P1 versus its position at P6?
DG
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Post by imperfectgolfer on Jul 24, 2024 9:48:39 GMT -5
Dr Mann Do you have any opinions regarding Chris Ryan's video? Surely there are other biomechanical movements, other than his demonstration where he pronates the lead arm/forearm, that may cause the hands to move towards the ball-target line from its position at P1 versus its position at P6? DG I think that CR's video is worthless from a golf instructional perspective. It is obvious that the hands are going to be closer to the ball-target line at P6 compared to P1. There are many factors involved and it is not only due to a lead forearm rotary motion. Consider Dustin Johnson at his P6 position. Image 1 is at P4 and image 3 is at P6 (where his hands are closer to the ball-target line than they were at P1). Note that DJ performs a very active trail upper arm adduction maneuver using a pitch elbow motion of his trail arm between P4 => P6 that gets his trail elbow in front of his trail hip joint area by P6 - and that action helps him to i) shallow the clubshaft between P4 => P6; ii) keep his clubshaft continuously on-plane between P4 => P6; iii) helps to maintain a high degree of clubhead lag during the early-mid downswing action between P4 => P6 and iv) allows the RFFW to optimally support the on-plane motion of an intact LFFW during the early-mid downswing time period. Note how important the correct pivot motion must be during that P4 => P6 time period - i) note his slightly open pelvis alignment at P6; ii) note that he has an increased degree of secondary axis tilt; and iii) note that he has a finite amount of right lateral bend combined with an increased degree of thoracic spine flexion that gets his trail shoulder to move the optimum amount downplane by P6. CR does not mention all these important points and he wrongheadedly states that getting the trail arm to that standard P6 position allows a golfer's trail palm to pressurize the clubshaft between P6 => P7 when we know that a pro golfer, who uses a TGM swinging action, actually has a negative trail hand couple phenomenon happening in the late downswing.
Addendum added later:
There is another point that CR gets totally wrong. Between the 2:10 - 2:19 minute time point of the video he demonstrates what happens between P1 => P2 and he wrongheadedly claims that the hands get further away from the body by P2 secondary to lead forearm rotation. That does not happen in the "real life" golf swing action of pro golfers. Note that CR is not rotating his pelvis/upper torso between P1 => P2 and he moves his lead arm further away from his body. By contrast, in a "real life" pro golfer's takeaway between P1 => P2 the clockwise rotation of the body moves the hands further away from the ball-target line by P2 (compared to P1) even if he uses a weak-or-neutral lead hand grip. Also, if a pro golfer uses a very strong lead hand grip - like Matthew Fitzpatrick - no lead forearm rotation happens between P1 => P2. Here is a swing video of Matthew Fitzpatrick's golf swing action. Watch his P1 => P2 takeaway action between the 0:24 - 0:31 minute of the video - note that he does not rotate his lead forearm and note that his hands are further away from the ball-target line at P2 compared to P1.
Jeff.
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Post by dubiousgolfer on Jul 24, 2024 10:48:19 GMT -5
Many thanks Dr Mann
DG
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