I agree that he is flexing his knees during the backswing. Biomechanically, he is still performing the same motion - bracing the knees by flexing the knees so that they are ready to withstand the downward arm swing thrust action movement without losing any body angles or balance. Theoretically, that knee flexing action could presumably occur in the early downswing - just before, and in anticipation of, the downward arm thrust action movement.
Here are images of VJ Singh where it appears that his knee flexing action occurs in the early downswing and not the backswing.
Not all PGA tour golfers seem to need that knee-flex action.
Here are a series of images of Adam Scott. His knee flex angle doesn't seem to change much during his backswing/downswing.
Position 1 and 2 = backswing, positions 3 and 4 and 5 = downswing.
Hogan Power Golf era swing ( I reckon about 1947 - but that is debatable on seperate thread..lets not get off topic )
Foot action , left knee, left shoulder...right knee...right shoulder...
This shows the bit that Ben Doyle "catches the tail " of the dog which he has just let out between his legs.... pretty near cuts the tail off IMO!!
This is the swing where he nearly loses balance... he clearly loved to hit it a long way...
Dog I just realized you are a English bull dog as opposed to most of the Georgia Bull Dogs around this site.
Great stuff, you are fast.
Yes this footage is him really giving it a whack for the camera. Still looks beautiful though , eh?
Two questions I have for all or y'all:
-at what point is this compression a bob and inadvisable? It for sure has implications for the radius as the left shoulder is on the move. Tiger never hits it fat though and I suspect Hogan didnt lay the turf over it too often either, eh Henny? How do they do that, a lot of #1 and 4 left at impact?
-what are we seeing in Mr Hogans hip action in these two photos. It looks like a "jump and twist" as described in the article to me. More curious to me is what is driving this hip rotation or twist? The hips, the right hip, the left hip, the legs , the knees the feet? Im thinking its a hip action of some sort.
OB, have no idea that Georgia had it's own Bulldog! I am British version ...probably equally as inbred though!
I see alot of left leg extension through and just beyond impact (bit like baseball guy that 12PB had)...and left shoulder goes "level left" during COG transfer..then up a bit as hands approach release...then left shoulder goes through the roof through impact!!
Hogan had massive gluteal muscles... look at KOC's recent video
- Hogan's tush juts out way more than the average flabby guy! He is like J-Lo - It may be artifact from all the surgical strapping he was using for his legs... Ok ..probably not... but it looks like the glutes of a 100 metre sprinter .. I think that somehow that is a key component of his swing. I not sure how the biomechanics people will take that but you don't develop that kind of muscle and NOT use ! Glutes are hip extensors i think...that might work.
OB, have no idea that Georgia had it's own Bulldog! I am British version ...probably equally as inbred though!
I see alot of left leg extension through and just beyond impact (bit like baseball guy that 12PB had)...and left shoulder goes "level left" during COG transfer..then up a bit as hands approach release...then left shoulder goes through the roof through impact!!
.
Thanks Bulldog
Ive got to find my Bertrand book to crack this "level left" thing that I keep hearing about. We can leave it for another day if it is off topic.
Love the left leg extension its helping me out nicely, but still have money on Yoda saying its a hip action of some sort. I could be wrong.
Homer ascribed the movement of the left shoulder to the action of the right shoulder if memory serves me well. I can see how the right shoulder driving on plane would send the left shoulder up, way up. Is this congruent to your thinking, though opposite shoulder minded?
Best be careful with the Georgia Bull Dog cracks around here , you know those guys like a fight and are very tight, them being all related and all.......
I don't know about that.... I had a boss once who was a real fat ass and couldn't hit worth dog d00-d00.
Ben shoulda used his wedge alright.
Hey NM
Not to cross pollenate the threads or anything but is this extension and left shoulder going up thing relevant to your shortening radius for power assertion in the other thread? I dunno.......
Not to cross pollenate the threads or anything but is this extension and left shoulder going up thing relevant to your shortening radius for power assertion in the other thread? I dunno.......
OB
Yes absolutely!
I should qualify that.... I believe the final UP thing is that "pumping" the pendulum thing (parameteric acceleration). http://sciencelinks.jp/j-east/articl...06A1001780.php By the time they're going up and back they've already done everything possible to delay release and speed up the clubhead (shorten the radius)
Last edited by no_mind_golfer : 12-22-2008 at 07:16 PM.
And by the way, I guessing Hogan intentionally avoided vertical hinging and an open clubface on that 9 iron. He could have made that shot with a 2 iron I bet.
And by the way, I guessing Hogan intentionally avoided vertical hinging and an open clubface on that 9 iron. He could have made that shot with a 2 iron I bet.
OB
See qualification I added.... Yes.. I'm sure Ben could have too... wasn't in the script though
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