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Originally posted by Gingerbread Man:
Under slow motion of a pitcher with good timing he will be in the high co_ck position at foot plant. As his torso begins to turn at this point the PAS will still be in the high co_ck position and the ball will have virtually not really have moved yet. Then as the hips come to an open position facing home plate the PAS will begin to rotate and bring the ball through to release.
Respectfully disagree.
I think CADad posted in a thread a good explaination of where the arm is (varies between throwers but if I remember correctly where the arm is at footplant had direct correlation to how hard a pitcher threw). If the ball ever stops moving during the delivery (after hand break), THEN you have a timing problem and "slack in the whip".
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Because this happens so quick, the PAS needs to already be in position when the kinetic chain begins at foot plant. This minimizes the duration that the elbow and shoulder are rotationg during the phase between foot plant and release.
The kinetic chain starts well before footplant.
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A pitcher who is late due to this inverted "w" position suffers because- At front foot plant, the hips have already begun their rotation and have started placing some stress on the shoulder and elbow because they are still trying to get the ball to the high co_ck position. What happens is that the ball must get to the high co_ck position first before it can start to come forward. So, as the hips roate and come to the open position the PAS is not yet to the high co_ck position and because of this the arm is behind in the timing sequence. Under slow motion you can see this problem develop as the elbow and shoulder are rotating under a high stress and stretched load to get to that high co_cked position that they should have already been at when their front foot first landed. So then, as their PAS finally gets to the high co_cked position and their hips have already come open and released the energy through to the arm, the PAS is then violently pulled through still under stress until just after release. So there are two possible damaging factors involved, so says the pitching camp instructor-
And this is bad because why?
I guess you have to define goals here. Are you trying to be as efficient as possible with your delivery to try and throw the ball with the greatest velocity, command, and location as you can? Or are you trying to be careful and safe worrying about a potential injury all the time?
If you have a timing problem then it most certainly will effect you velocity (make it lower) at the least, and possibly, after a long enough period, could lead to an injury at the worst.
A "timing problem" is a very vague term. What is posted here does not necessarily equate to a timing problem IMO. Timing issues can happen anywhere in the delivery. What I would call a timing issue - a "late arm" (lets just say just before or at footplant) is if the arm is below paralell at scap load (ball would pointing more towards the ground), or an "early arm" at this same point (ball is not doing anything and is "pausing" or waiting for the rest of the body to catch up). An early arm creates "slack in the whip" or kinetic chain.
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1st- the shoulder and elbow are under un-needed stress getting the ball to the high co_ck position which shouldn't happen up to that point.
2nd- The arm being behind creates an added "duration" of stress placed on the joints from the moment of foot contact and hips opening up until ball release.
Whereas some slight velocity may be gained by having the arm be slightly behind and thus stretched further, the long term effects can be injurious and could lead to a shortened pitch count before fatigue and thus place the pitcher at a higher risk for sever injury.
Pitching at high velocities creates stress all by itself. It's risk/reward. If you want to be safe, never throw above 80 and you will probably pitch for a long time. It will never be anywhere, but you will probably be safe and injury free.