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May 12, 2008
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I disagree. The video I've seen shows elite hitters maintaining the angle between the bottom hand forearm and the bat through the early part of rotation.
 
May 12, 2008
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This is really basic. Google double pendulum and yes, I do see the hinge angle/angle between the bottom hand forearm and the bat being maintained through the early part of shoulder rotation. I can't square that with the bat being rotated early by anything other than shoulder rotation. Leaving now to take the wife to dinner. Later.
 
May 12, 2008
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That's not what I asked. I asked when during that swing does he lose the hinge angle between the bottom hand forearm and the bat.
 
May 12, 2008
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If it's being pivoted in the hands at launch how does the bat remain at approximately a 90 degree relationship to the bottom hand forearm through 2 frames of shoulder rotation? Honestly looking at the video and reading your assertion leaves me scratching my head saying "huh"? Evidently I'm not understanding your terminology.
 
May 12, 2008
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Yes it's moving pretty fast.

Here's a kid with a pretty good rock skipping motion IMO. Photo 23 of 31, Analysis

Do I play? I'm 52 and 20 pounds over weight. You want to discuss hitting with someone who played you can talk to Englishbey who was drafted eighth overall back in the day and still can show a four frame or better swing.
 
May 7, 2008
442
16
DFW
Magic

You have not spent much time watching video have you? That is how the best in the world on down to LL are measured for swing efficiency now. You get a player to get all the slop out of the swing and down to 5 frames and you have one that has the potential to be a MLB player at a very high level.

Not easy but that is what the best in the world do and they do it well. Bonds being the quickest of them all. 4.5 frames Pre or post steroid use. If you dont think Bonds holds his hinge angle till the last possible Milli second then you need to go check his swing out again.

As his hands come around the back corner you will see the barrel of the bat parallel to the ground and the knob of the bat right at his belly button. This is half way through his swing and he still has the hinge angle intact. I have a perfect picture of this in my garage.

If I could figure out how to put it up on here I would be glad to share it as an example.

Elliott.
 
May 12, 2008
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That's a bat being thrown/whipped by the hands.

Sort of. Maintain the hinge angle down around the corner with good connected rotation and the problem will be keep the bathead from swinging out prematurely rather than getting it out there quick enough.
 
May 12, 2008
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You still haven't said anything about the 3rd dimension.

Griffey's bat is moving very fast in a dimension other than x and y.

That doesn't happen if it is being held back.

That only happens if the hands are active...

I don't believe your conclusion is supported geometrically.




.
.and I believe they are throwing the barrel around the resisting lead arm/hand at launch..

Perhaps you could explain what you mean in that phrase?

That is why over each frame of his 4 frame swing you can see his barrel moving very fast..

It is moving fast as the hand rotate with the shoulders in an approximately circular arc. The bat maintains it's relationship with the bottom hand forearm. The rotation of the hands, torso and shoulders around approximately the spine changes the direction of the knob. THIS is what is creating what you see. The bat is NOT pivoting or rotating in the hands. The hands, shoulders and bat are approximately maintaining their relationship to each other through the first two sometimes a little more frames of shoulder rotation. Naturally this rotation changes the angle of the bat in space but it's NOT rotating in the hands as proved by the shoulders, hands and bat maintaining their approximate relationship early in the swing. The force on the bat is along the length of the bat as it's pulled around an approximately circular path. Doing this well creates the whip at the end. The whip cannot be created by early torque, swiveling, rotating, pivoting the bat between the hands or near the hands or anything like that early in the swing. The whip does transfer the axis of rotation from the torso to near the hands late in the swing shortly before contact.

AND....that is how your bat/forearm angle can remain the same while the hands create speed in the 3rd dimension..

I don't think your argument supports your conclusion but perhaps again I don't understand your definitions and terminology.

That speed can only be created by the hands at that point in the swing.

The hands and forearms together do not have the potential power to produce bat speed quickly. They do have the ability to transfer that much power from the rotating torso to the bat.
 
May 12, 2008
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I guess you were real proud of that post.....several things repeated over and over and over.:D..

Yes, I was struggling. Wifes touch pad on her laptop seems beyond my abilities.

Nowhere did you really discuss the z axis.

The shoulder/torso turn is in the x and y axis....that will not develop speed in the z axis.

The point is.....there is speed BEFORE the bat and lead forearm line up. BEFORE what you called 'flyout'. Your 'hold the back bat' until release deals with the bat lining up with the forearm. It deals with 'flyout'. That is what your pendulum link showed. And that is fine.

But, there is clearly something else going on..

Yes, torso tilt is creating an angled swing plane to adjust for pitching height thus taking care of the z axis. Again, see the first eight clips. Analysis

Only the hands somehow throwing or pivoting the barrel around a pivot point....the lead hand....will this z axis speed be seen...

If you stand straight up and rotate, you have to deal with the z axis with the arms and or hands yes. But that's not a good swing though it is preached by a lot of fp coaches

The hands are most definitely capable of developing some throw or whip type speed. Are you saying pitchers just let their arm dangle and the rotation causes it to eventually 'flyout'. I think not. Their arm action is very important to them.

Throwing is another subject in that regard. Throwing is proactive rather than reactive allowing the smaller muscles of the arm to have more time to create speed though of course the throw still begins in the core.
 

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