Post by imperfectgolfer on Mar 11, 2024 10:38:13 GMT -5
Watch this BBG video.
This video features Scott Lynn using Swing Catalyst force plate measurements to instruct Brendon DeVore.
Scott stated that Tommy Fleetwood had a consistent pattern of maximal COP Swing Catalyst measurement into his trail side of 84% irrespective of whether he was hitting a driver or a short iron. He stated that pro golfers generally have a consistent pattern of maximal COP measurement into the trail side, which I can believe is a likely true fact.
He then got Brendon to perform two golf swing actions in sequence and Brendon got a maximal COP into his trail side of 70% and 85% although the timing of when the maximal COP measurement happened was the same. SL then initially argued that having a 85% measurement would cause Brendon to likely use more trail foot generated push towards the target in his early downswing that could potentially cause excessive pelvic sliding, which Brendon stated would be a swing fault because Brendon wants to perform a more rotary pelvic motion.
Having a high maximal vGRF measurement under the trail foot is expected in a rear-post golfer, having a low maximal vGRF measurement under the trail foot is expected in a front-post golfer and having an intermediate maximal vGRF measurement under the trail foot is expected in a center-post golfer. That means that Brendon should theoretically fit into one of those three patterns based on his individual swing pattern, and he should not be obliged to generate an intermediate vGRF under the trail foot at P4 of <<85%, which is theoretically only suitable for a front-post or center-post golfer, if he wants to avoid a left-lateral pelvic sliding swing fault. SL did not really make any attempt to determine whether Brendon would swing better as a rear-post golfer, or a center-post golfer, or a front-post golfer.
Then, Brendon performed a number of swings where he tried to improve his pelvic rotary motion by increasing his pelvic torque measurement (yellow graph). What is noteworthy is that he hit his best strike - while simultaneously increasing his rotary torque measurement (yellow graph) - when he had a maximal COP-measurement under his trail foot of 84%. I could see no evidence that he had a pelvic sliding problem in that golf swing action despite the high maximal COP measurement of 84%. Then, BD/SL discussed the trigger action of starting the backswing action's pressure shift by either swaying to the right versus trying to cork-screw the trail foot clockwise against the ground when trying to generate a maximal trail foot COP-measurement of 84%. Theoretically, the latter choice would be better if Brendon wanted to avoid a left-lateral pelvic swaying action in his early downswing. However, they are both seemingly oblivious of the "idea" of using the trail-sided lateral pelvic rotator muscles in order to increase the efficiency of the counterclockwise pelvic rotation during the early downswing between P4 => P5. Watch the golf swing action that Brendon performed at the 21:15 minute time point - note how he does not really load his trail-sided lateral pelvic rotator muscles by driving his trail hip joint into internal rotation by P4, so he is likely not efficiently using his trail-sided lateral pelvic rotator muscles.
By totally ignoring the issue of how to efficiently use his trail sided lateral pelvic rotator muscles, I think that Brendon is not learning how best to improve his downswing's rotary pelvic motion.
Jeff.