Going Normal and a couple of through the ball videos

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art

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magicmarker said:
Was that a little BBKIB during the set up too?
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Dear magicmarker,

The access to PGA Tour players regarding BBKIB has been very limited, so I believe Adam Scott is self-seeking better dynamic balance and stability by those small repositioning moves before and during the early phase of his back swing.

As Billy McKinney allows me to get more involved with the PGA folks including local college golf coaches and a few of their players, it has become apparent that a clearer description and understanding and how best to coach/teach the implementation of 'Bumpy Back Keep it Back' is very necessary.

I will soon post the details (and possibly a video) of this on the BBKIB thread Billy started a few months ago, but in summary, the positioning of the rear hip for BB is IMO and experience, best accomplished as part of the golfers set-up routine, but it is becoming more clear that accomplished golfers find it easier to inch it back, a little bit at a time, with the final BB position being established with the initial lower body rotation of the back swing.

The dynamic balance and stability analyses and testing indicates that 'earlier is better', as there are stretch-shorten cycles and kinematic sequencing elements that are enhanced if accomplished during the set-up time frame.

Certainly more testing and experiences will further guide this area and I expect there will emerge a golfer-unique BB routine that will reduce stress/crunch factor of the back while increasing both club head speed, and accuracy as previously posted.

Thanks for your observations,

Sincerely,
art
 
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art

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Brian Manzella said:
Art, do you think the clockwise twist at the feet (free moment) in the change of directions is KEY for BBKIB?
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Dear Brian,

Thanks for the question as this is an extremely important, but very complicated area especially when addressing any detailed part of it such as the ground reaction 'torques' you noted. If you wish, I would be available for a telecon/conference call to further elucidate on this area.

In direct answer to your question, this clockwise twist is not the key for BBKIB, but in combination, the key for dynamic balance and stability.

The research and analyses I have been able to conduct using a combination of 6 DOF and ground reaction force data from several published papers has led me to the conclusion that the clockwise twist you questioned is a combination of leg 'action' torques AND upper body rotation/acceleration 'reaction' torques thru the transition and early downswing leading up to the peaks of the kinematic sequences of both the lower and upper body elements.

My analyses show that there can be great variations in the location of the instantaneous screw axis of rotation of the lower body during this approximate 0.150-0.200 second time period that determine whether or not dynamic balance and stability is possible. This is the thrust of why I have been seeking support to have some research done to take my 'first-order' initial research and hypotheses to the next stage of understanding, hopefully at several universities that conduct research of this nature.

The bottom line at this time is that producing and feeling the clockwise twist you noted especially with a Bumpy Back set-up, encourages an initial hip/pelvis transition and early downswing with an axis of rotation closer to the rear hip. This has the favorable characteristics of better lower body dynamic stability which minimizes the overall dynamic disturbances during the explosive down swing thru impact.

Sincerely;
art
 
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wulsy

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Wow, what a guy this art is. He's brought something to the table here that would never have been discussed by the scientists or the golf pros. Thanks dude.
 
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Rick Dandy

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GOING-NORMAL

GOING-NORMAL

GOING, n.

The action of Go.


NORMAL, adj.

Technical uses.

a. Right-angled, rectangular. rare.Blount Glossogr. (1656) gives ‘Normal, right by rule, made by the square or Rule’.

b. Standing, positioned, or directed at right angles (to); perpendicular (to).
 
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art

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Brian Manzella said:
Try to remember, the "SUM OF ALL THE FORCES" are normal. There may or may not be some forces incidentally going other places.
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Dear Brian,

I still am unable to travel, but will be talking to Billy about how to best get together with Chris Como and maybe Dr Kwon to see if they have any interest in in studying the impact of the many linear and rotary forces that develop during the golf swing on my favorite subject, 'dynamic balance and stability.

Since it is very germane to the subject, and maybe based on your test program results with Mike Jacobs on Swing Catalyst, could you please expand on your comment on this post regarding the "sum of all forces are normal" ??, thanks

Appreciatively,
art
 
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