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Torque


Posted by: Mike Myers (mike.myers@bellnexxia.com) on Wed Jan 2 21:46:34 2002


Hi Jack,

I am an engineer. I have been reading your site, and you make a number of salient points re: efficient power generation. I have a few questions/points, however:

1. You indicate in Bat Speed Research (Wrist Action or Torque):

"The large muscles in his legs and back have rotated his hips and shoulders to a point where the belly button and chest are now facing the pitcher. His lead shoulder is now starting to rotate back in the direction of the catcher. This means that the lead arm, and thus the bottom hand, are now being pulling back toward the catcher as the bat approaches contact. --- At the same time the rear shoulder (and top hand) are rotating around toward the pitcher."

This, while possible, does not lead to maximum torque at contact. If the batter ends his rotation facing the pitcher, and contact is at this point with the bat perpendicular to ball trajectory, then the lead shoulder is no longer being powered “back toward the catcher”, but is merely following through with residual waist action. Further, if the batter stops his rotation facing the pitcher, he must actually have decelerated just prior to stopping rotation – again reducing bat speed. Perhaps you can explain this paradox.


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