Bat Speed -- Baseball Hitting Forum

Posted by: Shawn () on Mon Dec 22 18:27:13 2008

> Shawn -
>
> The biggest source of timing error is picking a matching motor program that has the right
> duration from launch to contact. The duration error is minimized by the optimal blend of a
> short bathead path from launch to contact traversed as quickly as possible. In a ballistic
> motion, deceleration is forced the instant the connection CHP/pendulum connection is
> lost. This results in large timing error and loss of consistency. Good timing with minimal
> error is when max speed/escape velocity is right at contact, better just before than after.
>
> A non expert swing tends to get the segment sequencing out of order so that there is
> deceleration/reacceleration instead of steady acceleration/summation of velocity. Arms
> get in way and accelerate before torso. Result is clubheaqd decel before impact,see her for
> golf, but same for hitting:
>
> http://www.advancedmotionmeasurement.com/Articles/KinematicSequence-
> TransitionandDownswing.pdf

Tom,

Ok, I'm just reading through it and found out I have the article.

I have some stuff on the transition phase for baseball/softball as well. I wish I had the study that was the first one to apply this information in the baseball swing. I used the bookmark for the page/study, but somehow never downloaded the information or changing computers the information was lost. I've searched for it many times and I have never found it again.

But, What I like about this study you posted is it gives a body position for each segments peak velocity. It would have been better if they gave a front and back (rear view, or gave two directions in 2D) 2D image for each segment.

Although take a look at the hips and their position at peak velocity. They have not turned very far and have just begun opening at peak velocity. And I have my understanding of this when it comes to a baseball swing as well.

I'll finish reading this and get back to you. I'm not sure what your point is exactly, the study so far is an example of what I said and the clips I've posted.

Unless, I said something incorrectly or did not explain something clearly.

Shawn

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Text:

> > Shawn -
> > 
> > The biggest source of timing error is picking a matching motor program that has the right 
> > duration from launch to contact. The duration error is minimized by the optimal blend of a 
> > short bathead path from launch to contact traversed as quickly as possible. In a ballistic 
> > motion, deceleration is forced the instant the connection CHP/pendulum connection is 
> > lost. This results in large timing error and loss of consistency. Good timing with minimal 
> > error is when max speed/escape velocity is right at contact, better just before than after.
> > 
> > A non expert swing tends to get the segment sequencing out of order so that there is 
> > deceleration/reacceleration instead of steady acceleration/summation of velocity. Arms 
> > get in way and accelerate before torso. Result is clubheaqd decel before impact,see her for 
> > golf, but same for hitting:
> > 
> > http://www.advancedmotionmeasurement.com/Articles/KinematicSequence-
> > TransitionandDownswing.pdf
> 
> Tom,
> 
> Ok, I'm just reading through it and found out I have the article.
> 
> I have some stuff on the transition phase for baseball/softball as well. I wish I had the study that was the first one to apply this information in the baseball swing. I used the bookmark for the page/study, but somehow never downloaded the information or changing computers the information was lost. I've searched for it many times and I have never found it again.
> 
> But, What I like about this study you posted is it gives a body position for each segments peak velocity. It would have been better if they gave a front and back (rear view, or gave two directions in 2D) 2D image for each segment.
> 
> Although take a look at the hips and their position at peak velocity. They have not turned very far and have just begun opening at peak velocity. And I have my understanding of this when it comes to a baseball swing as well.
> 
> I'll finish reading this and get back to you. I'm not sure what your point is exactly, the study so far is an example of what I said and the clips I've posted.
> 
> Unless, I said something incorrectly or did not explain something clearly.
> 
> Shawn

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