Post by dubiousgolfer on Sept 14, 2018 19:38:18 GMT -5
Dr Mann
One reading your 'Impact and Followthrough' chapter , you mention in response to question 6 the following:
"Yes - I no longer believe in the validity/utility of the 1L-Machine Model, which is the major TGM keystone of Homer Kelley's conceptual thinking regarding the golf swing"
"As I have previously explained, keeping the FLW/clubface square to the target for many inches through the immediate impact zone is biomechanically possible because of two synergistic biomechanical phenomena - i) The left shoulder socket is not rigidly stationary (rigidly "fixed" in space) and ii) the left arm can move independently in the left shoulder socket and it can temporarily move in a desired direction towards the target for a very short time period; and this dual-biomechanical combination can easily allow a golfer to move the FLW, and therefore the clubface, straight towards the target for a few inches during the immediate impact zone. There is no biomechanical imperative that mandates that the FLW/clubface must be continuously closing between P7 and P7.1 - which is a mandatory imperative in a horizontal hinging action (that is purely based on Homer Kelley's Machine Model). I therefore think that the concept of a horizontal hinging action has no "real life" utility when trying to understand the practical behaviour of the clubhead/clubface during impact and the immediate followthrough time period."
Question 1: Is your biomechancial description regarding the 'paddlewheeling action' of the right forearm around the various axis ( images below) to facilitate HH, AH, VH still applicable before impact ?
Question 2: If yes to the above for HH, does this also mean that for 'Drive Holding' during impact and immediate follow-through time period, the HH paddlewheeling action of the right forearm must stop?
Regards
DG
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Now consider the situation of a swinger who uses a horizontal hinging action (full-roll hand release action) in his followthrough. During a HH action, the FLW remains perpendicular to the ground (and not perpendicular to the inclined plane) during the followthrough. To make the transition from the release swivel phase of the late downswing to the followthrough phase optimally efficient, the right palm must become more perpendicular to the ground (and not perpendicular to the inclined plane) during the right forearm's paddlewheeling action.
Angled Hinging
Vertical Hinging
One reading your 'Impact and Followthrough' chapter , you mention in response to question 6 the following:
"Yes - I no longer believe in the validity/utility of the 1L-Machine Model, which is the major TGM keystone of Homer Kelley's conceptual thinking regarding the golf swing"
"As I have previously explained, keeping the FLW/clubface square to the target for many inches through the immediate impact zone is biomechanically possible because of two synergistic biomechanical phenomena - i) The left shoulder socket is not rigidly stationary (rigidly "fixed" in space) and ii) the left arm can move independently in the left shoulder socket and it can temporarily move in a desired direction towards the target for a very short time period; and this dual-biomechanical combination can easily allow a golfer to move the FLW, and therefore the clubface, straight towards the target for a few inches during the immediate impact zone. There is no biomechanical imperative that mandates that the FLW/clubface must be continuously closing between P7 and P7.1 - which is a mandatory imperative in a horizontal hinging action (that is purely based on Homer Kelley's Machine Model). I therefore think that the concept of a horizontal hinging action has no "real life" utility when trying to understand the practical behaviour of the clubhead/clubface during impact and the immediate followthrough time period."
Question 1: Is your biomechancial description regarding the 'paddlewheeling action' of the right forearm around the various axis ( images below) to facilitate HH, AH, VH still applicable before impact ?
Question 2: If yes to the above for HH, does this also mean that for 'Drive Holding' during impact and immediate follow-through time period, the HH paddlewheeling action of the right forearm must stop?
Regards
DG
--------------------------------------------
Now consider the situation of a swinger who uses a horizontal hinging action (full-roll hand release action) in his followthrough. During a HH action, the FLW remains perpendicular to the ground (and not perpendicular to the inclined plane) during the followthrough. To make the transition from the release swivel phase of the late downswing to the followthrough phase optimally efficient, the right palm must become more perpendicular to the ground (and not perpendicular to the inclined plane) during the right forearm's paddlewheeling action.
Angled Hinging
Vertical Hinging