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Re: Re: Purely Rotational


Posted by: mb6606 (mb6606@hotmail.com) on Fri Mar 4 13:10:47 2005


> > If the swing is purely rotational, then why do most hitters back foot jump off the ground or get drug forward at or just before the point of contact! There is no such thing as a purely rotational force. Rotation is created by a linear movement that has an axis. For example, a tetherball doesn't rotate around it's pole until it is hit forward by someone and then it only rotates because it is connected to it's axis (the pole) by a string. There must be linear weight shift to maximize the torque that occurs when the front heel sets down.
>
> This is where I disagree with Jack. Jack believes the hitter comes to a stop before rotation begins. I believe the transition from linear to rotation is a smooth non stoping transition.
>
> Jack calls it a back to center move and doesn't believe it results in a proper axis. I believe hitters are different and how they rotate might be a little different between them. I think hitters rotate around the front hip, meaning the body is behind the front foot.
>
> Jack thinks that hitters who hit this way straighten their front leg early. He also thinks they have a more linear hand path. I disagree with both of these thoughts. The small linear move of the lower body (mass) doesn't cause the hand path to become linear, and it doesn't require a stiff front leg at foot plant.
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All depends on whether you are using the back shoulder loke a flywhell for a centrifugal force type swing or pushing with the bakc shoulder for a hitting type swing. both methods are valid yet to distinct motions/feelings.


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