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Re: Re: Re: Re: Weight Shift - Truism or Fallacy


Posted by: Jack Mankin (MrBatspeed@aol.com) on Sun Jan 20 10:15:19 2008


>>> You are right when you notice the forward movement coming to a stop, but the force of the forward movement and momentum has transfered into the firm front leg. That feel of the force being applied into the front leg is one of the contributing forces that produces batspeed.

There is not one action or force that produces batspeed in a high level swing. It is a series of well timed actions and movements that produce many different forces including momentum. Yes the momentum stops at a point in the swing, but the force that the momentum provided is one of the contributing forces to the swing.

Your thoughts? <<<

Hi Jimmy

Take a closer look at the video. Note that when forward movement came to a stop, the lead-foot was still in the air. This means that prior to foot plant, forward movement and momentum were zero. Therefore, there was zero momentum to be transferred “into a firm front leg” at foot plant.

Also note that prior to foot plant, all of Bonds’ weight was on his back-foot. By contact, all his weight was on his front-foot. But as this transfer was occurring, the body attained zero forward velocity and momentum. That is the point of this thread. “Weight Shift” does not equal the generation of “Momentum.”

Granted, there are a number of good hitters who do attain forward body velocity and momentum during the stride. Once we have finished this discussion. We will discuss Yeager’s theory that the linear momentum attained is converted into hip rotation.

Jack Mankin


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Who hit a record 70 home runs in one season?
   Kobe Bryant
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