Core or torso usage

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Apr 20, 2018
4,581
113
SoCal
"spinal rotation to get the barrel to the ball."

I think the pelvis rotates around the torsos center (spine) in a lot of successful ML swings. I think taking one very successful swing model (BB) and saying its the only way to be an elite or high level or whatever other name you want to put on it is wrong. Do you think BB's hand pumping pre launch should be taught as an absolute? Probably not. Why? Not a source of power? Its a source of timing. Timing is important. BB had excellent timing, right? I see more ML hitters that do not swivel around the rear hip than do. If fact I would contend (with no actual proof) that if BB had shifted a little and swung his pelvis around his mass he would have hit the ball farther. LOL
 
Mar 23, 2011
492
18
Noblseville, IN
"spinal rotation to get the barrel to the ball."

I think the pelvis rotates around the torsos center (spine) in a lot of successful ML swings. I think taking one very successful swing model (BB) and saying its the only way to be an elite or high level or whatever other name you want to put on it is wrong. Do you think BB's hand pumping pre launch should be taught as an absolute? Probably not. Why? Not a source of power? Its a source of timing. Timing is important. BB had excellent timing, right? I see more ML hitters that do not swivel around the rear hip than do. If fact I would contend (with no actual proof) that if BB had shifted a little and swung his pelvis around his mass he would have hit the ball farther. LOL

I would be surprised to find many MLB players who's rotational engine is not a product of a coiled rear hip going into extension. I just don't think that they will have the time to react to pitch location and would get beat all day long. A tell-tale sign of glute/rear hip interaction is the IR'ing of the rear leg. Even as the rear foot becomes unweighted, you see the rear leg continue to turn inward. With a predominantly spinal swing engine, the rear leg will not IR this way. Instead the hips will just get drug along into the zone and the back leg and foot will only move so much as they are forced to move.

When what about any athletic movement a rotational element, seeing the shoe laces go down is an easy indicator of good rear hip action. Laces down means good rear leg IR (most likely a good glute response), laces up or sideways probably means most of the rotation came from shoulders or core torque. You can see it all day watching a lot of softball throws vs. baseball throws... You'll also find a similar correlation in shoulder pain/injuries...
 
Jul 16, 2013
4,659
113
Pennsylvania
In many of the better swings, I see the front hip working more towards the back. This Bagwell clip is a good example. Watch the head of the on deck hitter. You cannot see his head at all until after swing launch. Then his head starts to become visible even before Bags steps back after his follow through.

4iK0AwO.gif
 
Jun 17, 2009
15,105
0
Portland, OR
In many of the better swings, I see the front hip working more towards the back. This Bagwell clip is a good example. Watch the head of the on deck hitter. You cannot see his head at all until after swing launch. Then his head starts to become visible even before Bags steps back after his follow through.

4iK0AwO.gif

No to this ....

Around-Front-Hipx.gif



Yes to this ....

Bonds-BV-fronthip2.gif
 
Jun 17, 2009
15,105
0
Portland, OR
Mankin has problems with people who say the front hip is the axis of rotation. He thinks hitters will end up doing what you say NO too.

If you recall, there was a time when Yeager was suggesting shoving oneself forward to a firm posted front-side, in a manner that had the linear progression of the hips blocked, with the linear momentum being transferred into rotational momentum, which caused the back hip to rotate around a blocked front hip.
 
Jan 6, 2009
6,587
113
Chehalis, Wa
If you recall, there was a time when Yeager was suggesting shoving oneself forward to a firm posted front-side, in a manner that had the linear progression of the hips blocked, with the linear momentum being transferred into rotational momentum, which caused the back hip to rotate around a blocked front hip.

Yeah it's not that easy, you just can't shift the weight forward to a firm front side.

In the clip you can see the front leg is to extended. The front leg doesn't help the front hip to rotate backwards. The weight gets on the front side and not against it.
 

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