Posted by: Teacherman () on Thu Jan 13 15:42:55 2005

>>> Not all of us have agreed that there is counter rotation. However, even if you believe there is, it still isn't the same as "sudden change of direction" by the center. <<<
>
> Hi Teacherman
>
> Once again, drop the ¡§one liners¡¨ and give us an analysis of what is different with ¡§"sudden change of direction" by the center ¡§ from what I outlined below.
> ##
>
> „« How does what you describe above differ from what has long been held to be true with rotational transfer mechanics? I think we have all agreed that there is a counter rotation of the body during the in-ward turn and loading process. We have agreed that there may be a forward movement of the body during the stride but this forward movement ceases before the swing is initiated and the body rotates around a stationary axis. We have all agreed that the hips rotate 30 or so degrees ahead of shoulder rotation.
> >
> > And finally, Absolute #9 states, ¡§They will all have the lead-shoulder pulling back toward the catcher (un-shrugging the lead-shoulder) to the 105 degree position at contact. This is to generate BHT and the ¡§Hook¡¨ in the hand-path to maximize bat speed.¡¨ ¡V Shawn, I fail to see why calling these principles a ¡§change in body direction¡¨ explains anything different than what has been previously defined.
>
> Jack Mankin
>

That was two lines wasn't it?

Where in the above is there anyting resembling a "sudden change of direction". You mention counter rotation.....not the same. You mention inward turn......not the same. You mention forward movement of the body to rotation around a stationery axis......not the same. You mention the hips rotate about 30 degrees ahead of the shoulders.....not the same. You mention the lead shoulder pulls back to 105 degrees......not the same. You mention BHT and the hook.......not the same.

None of those are "sudden changes of direction". I doubt if you find it in your list because it's the "whip effect" that you don't believe in.

However, that doesn't mean it doesn't exist.

You and Brian have stated that the "whip effect" doesn't exist in a swing and can't exist because the bat is rigid. There is no connection between the two. The rigidity of the bat has nothing to do with it. The whip effect has to do with the body acting as a whip handle creating a sudden change of direction which creates and sends energy up the chain to the bat handle. And, with proper connection, (no leaks and proper leverage) this energy acts on the handle to displace the barrel. Since the hands are connected, this rotational energy causes a circular path. And this is what causes the bat to angularly displace in good swings. The greatest source of the force on the bat handle is the energy created by the whip, not torque.

I believe this is 20 lines.