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Re: Back leg rotation


Posted by: tom.guerry (tom.guery@kp.org) on Sun Nov 26 11:22:39 2000


To everyone
>
> Okay, on to other things.
>
> I am soliciting opinions on the nature of back leg rotation.
>
> Let's forget smashing insects for a minute.
>
> Why is it that all the great hitters use a rotation that brings the back foot up on its point? I just don't see folks on the ball of the foot until the follow through; at contact, and sometimes before, they are up on the toe.
>
> My thought: just sliding it around on the ball tends to lean the posture back to far, hanging back with the spine angle. Those great hitters have a spine angle that does not collapse. The hips and shoulders do not go backward as the hands go out and around. It stays where it was after the stride or prep movement took place.
>
> It is tough, though. It takes a great deal of strength to do this as they do it. And a hard-soled shoe. Anyone ever try it in a soft shoe such as turf cleats, or those used for indoor hitting? Can't do it. Maybe this is an important practice tip.
>
> What do you all think? Do you see the same things I see?
>
> HoffmanLa

HoffmanLa-

I think teaching the lower body how to support the upper body(turn torso without breaking ground-up kinetic chain)is very difficult.Only a few lucky ones and those who are mastering the golfswing seem to get it easily.There is also the issue of how to separate the upper and lower half and how to teach this.

I think the key,as emphasized by Jack, is to make sure that kids understand that the swing is a ballistis motion created by smooth acceleration with rotation around a vertical axis and a circular handpath.Trying drills with dry swings or the heavy bag can reduce the interference of old muscle memory.Until kids get the general feel of this type of swing with early maximum batspeed and ongoing tightly connected torso turn,the lower body will have no idea what to do.

For the lower body to do this right requires strength and balance that just is not there because they are used to years of whipping the bat with the hands and just turning the body to get it out of the way of the arm swing.

When done right,the momentom is going to result in coming up on the back toe or the back foot leaving the ground as the torso turn proceeds and the energy is whipped upward through the body.

The most detailed useful info I have seen is from Mike Epstein's video-I hope Jack doesn't mind my mentioning his info.It is important to "trigger" the lower body with the front heel coming down and begin rotation with weight staying back on the inside of the back thigh( weight feels this way in throwing too).Lunging results from getting weight any more forward(onto the front thigh for example).
For more detail,go to mikeepsteinhitting.com and look at checkpoints under troubleshooting and you will get an excellent list of cues to use/avoid to learn this motion.


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