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Post by dubiousgolfer on Jun 24, 2024 4:36:06 GMT -5
Dr Mann
I've just happened to see several of Chris Tyler's golf instruction videos and must admit that I think he's better (from a biomechanics perspective) than most of the others on you-tube. He provides drills that need to be perfected and checked by video for different stages of the golf swing which then need to be combined together.
Note: He obviously doesn't know about the contraction of the right lateral pelvic girdle muscles with regards rotation of the pelvis. He also (mistakenly in my opinion) seems to think the golf club is designed to automatically close the clubface when being swung in the functional swing plane (in another you-tube video not posted here).
In the 3rd video , it does seem that he is practicing Drive Holding at 11:20-11:22.
In the 4th video he is definitely NOT a proponent of extending the lead wrist through impact.
DG
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Post by imperfectgolfer on Jun 24, 2024 11:56:31 GMT -5
Dr Mann I've just happened to see several of Chris Tyler's golf instruction videos and must admit that I think he's better (from a biomechanics perspective) than most of the others on you-tube. He provides drills that need to be perfected and checked by video for different stages of the golf swing which then need to be combined together. Note: He obviously doesn't know about the contraction of the right lateral pelvic girdle muscles with regards rotation of the pelvis. He also (mistakenly in my opinion) seems to think the golf club is designed to automatically close the clubface when being swung in the functional swing plane (in another you-tube video not posted here). In the 3rd video , it does seem that he is practicing Drive Holding at 11:20-11:22. In the 4th video he is definitely NOT a proponent of extending the lead wrist through impact. DG I think that CT's golf instruction is OK, but I do not agree with many of his biomechanical instructions. Starting with the first video, he likes the "idea" of keeping flex in the trail knee during the backswing and limiting pelvic rotation to 30 - 40 degrees. That's OK, but not mandatory. I prefer the "idea" of loading the trail-sided lateral pelvic rotator muscles by driving the trail hip joint into a condition of internal rotation and I am not fixated on the exact degree of clockwise pelvic rotation obtained at P4. He also talks about unloading the trail hip joint by a "falling off" motion of the trail leg so that the trail ankle becomes inverted. I prefer to think of activating the trail-sided lateral pelvic rotator muscles in order to perform an efficient pelvic-squaring phenomenon between P4 => P5. He talks of getting 80% of one's weight onto the lead ankle by P5. He should be emphasizing vertical pressure-loading of the lead foot, and not weight shift of the body. Also I think that the pressure-loading of the lead foot should not be under the ankle, but under the lead forefoot. That will allow the lead forefoot to be pushing away from the ball-target line in order to generate a horizontal GRF that facilitates the motion of the lead hip joint back away from the ball-target line between P5 => P7. He talks about using the left-sided abdominal oblique muscles to elevate the lead hip joint and also help to rotate the pelvis open after P5. I do not believe that the muscular contraction of the left-sided abdominal oblique muscles causes elevation of the lead hip joint and the simultaneous motion of the lead hip joint back to the tush line and also slightly away from the target between P5 => P7 and I believe that it is due to contraction of the lead-sided quadriceps muscles that cause straightening of the lead leg combined with contraction of the lead-sided gluteus maximus muscle that will pull the upper lead thigh back away from the ball-target line and also away from the target. In the 2nd video, he talks about how the lead biceps area of the lead upper arm is moved below the lead pectoral area between P4 => P5.5, but he does not discuss how this is accomplished biomechanically. He specifically does not talk about an active trail upper arm adduction maneuver secondary to muscular activation of certain trail-sided shoulder girdle muscles - which should occur concurrently with activation the lead-sided shoulder girdle muscles that causes depression of the lead arm. In the 3rd video, he is very didactic regarding the performance of the takeaway and he wants 30 degrees of lead wrist upcocking by P2 and 60 degrees by P3 and he does not like the one-piece takeaway or an early lead wrist setting type of Right Forearm Takeaway (as performed by Danny Willett). That's an okay choice, but it is optional. However, I do not like his didactic idea of increasing the degree of lead wrist upcocking between P3 => P4 as a result of the lead arm still going upwards while the golfer starts the pelvic pivot motional action - via a vaguely expressed form of float-loading. He talks of actively bowing the lead wrist between P6 => P7, but that does not usually happen in pro golfers who use a weak-or-neutral hand grip and who use the intact LFFW/GFLW swing technique or in pro golfers who use a very strong lead hand grip (eg. Matthew Fitzpatrick or Jamie Sadlowski). In the 4th video, he does talk of keeping the lead arm from stalling at impact, which is conducive to a DH-hand release action, but he actually performs a non-DH hand release action in his swing action. He does not talk about matching the angular velocity of the lead arm to the acquired angular velocity of the clubshaft between P7 => P7.4. Jeff.
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Post by dubiousgolfer on Jun 24, 2024 13:12:54 GMT -5
Dr Mann
Your anatomical analysis of the golf swing is far more detailed than any other golf scientist or golf instructor that I'm aware of and I doubt anyone else will ever repeat that feat.
DG
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