Swing experiment

[_MIA_]

I think he forgot what forum he was in. BBD is known for the "gotcha game" he is referring to. Here, we really don't care that much...

Yes I know....I have a headache, my neck and back are sore along with my bicep..I really don't need a pain in my rear as well

 

[Shawn]

I look at leverage against the front side as the handle of the slingshot. When the slingshot is created or max separation against the front leg it creates leverage. Then the swing unfolds with leverage against the front leg.

 

[TDS]

Show me where I have claimed that with regards to hitting in general or more specifically what you mean by a "leveraged front side"...

Anyway carry on. It is too early in the morning to get into an argument about absolutely nothing.

Patter, You are physics Prof so assumed you knew the kinetics behind the movements.. Sorry for causing your a$$ pain.

 

[_MIA_]

Patter, You are physics Prof so assumed you knew the kinetics behind the movements.. Sorry for causing your a$$ pain.

a) I am a prof in Aerospace and Mechanical Engineering and not a biomechanics expert. One of the beautiful things about knowing a lot about something is you then know when your knowledge about something else is limited b) the guy was asking you the question, not me c) my arse pain has subsided

 

[Bobby Shirer]

Sorry to hijack your hip extension discussion.

I guess I don't see how this drill (Tewks) allows one to have a leveraged front side (pitchers side) . Why do you want to hang back at anytime ? I think the legs/hips are involved but not actively..

The Legs/hips are responding to the core (obliques, etc).

I see that you don't understand the physics. The legs exert a force against the ground and turn the pelvis relative to the ground. The un- anchored core isn't able to turn the anchored pelvis because, as it exerts force against the pelvis, it turns itself. If you push against a wall and lift your legs (un-anchor) you move yourself, not the wall.
Even if you keep your legs on the ground, if the wall has more resistance to movement, you move yourself. The core is moving it's own mass and the mass of the bat.
If the core could accelerate itself with enough force, you may lose contact with the ground, but the core still wouldn't move. Your legs would slip out and you'd fall where you stood.
Also, if the core could apply enough force it could decelerate the rotation of the pelvis by pushing against it. Maybe even stop it's movement. Maybe even apply enough force to push the pelvis in the other direction, but then that still wouldn't advance the forward turn of the pelvis or the core.
Ideally, the pelvis pushes or at least resists the force of the core against it to result in forward rotation of the core/shoulders/bat.
The core can't rotate itself and the pelvis forward at the same time unless it is anchored to something other than the pelvis.

 

[julray]

I'm glad we are talking about both legs again...

 

[Bobby Shirer]

It’s not that simple to say long swings create more batspeed. You want to increase the distance force is applied to the bat, without increasing the time of the swing.

When I first started measuring batspeed most kids increased the distance and swing time or time to contact.

Now with Blast I can measure batspeed, time to contact (swing time) and rotational acceleration or swing quickness. And review the video of each swing.

The additional distance is with the bat near top speed so the bat covers that distance more quickly. And all I need to do is start a beat sooner. We're talking 12" at 70-80 mph. That's almost 12 feet in a tenth of a second, so or 14" in one hundredth of a second.

 

[Bobby Shirer]

What do you mean by "leveraged front side"?

Leverage....
A lever is a rigid beam anchored on a fixed hinge so....
Wouldn't that mean the leg is anchored so as to be used to push against to gain mechanical advantage?
Hence the Tewks video.

 

[Work=wins]

At least he admits it’s longer and you should hit against the hips. Changed his tune from before. And according to him the core causes rotation. I’m good with that.

now his duff has to admit his legs opening his hips Is long and slow as well. Tooo much slack. What do you say duff?

 

[_MIA_]

Leverage....
A lever is a rigid beam anchored on a fixed hinge so....
Wouldn't that mean the leg is anchored so as to be used to push against to gain mechanical advantage?
Hence the Tewks video.

In this case my guess leverage is being used as a verb, e.g. replace the word leverage with the phrase "use to maximum advantage"