No stride and swinging from the launch, one legged?

[julray]

I appreciate all the knowledge being shared. I was hoping somebody could loop back to where this discussion began and explain how it’s relevant.

 

[Bobby Shirer]

Use the rear leg to create controlled forward momentum and then use the front leg to convert the momentum into rotation.
The large core muscles are stabilizers. Remember the warning not to lift and turn? That's a great way to hurt your back.
The thoracic spine is where most of the core rotation happens.

 

[Bobby Shirer]

Why do you think the majority of hitters are closed at foot down? Why do you see the belly button turn forward before the front hip in every swing? If it was legs-pelvis-core It would be as plain as day.

at launch the belly button goes first pulling the front hip open while the back leg anchors and takes the slack out of the back hip. Once the slack is out, the core pulls the back foot which will get peeled off the ground while the back leg stays anchored/ERed to keep the slack out. The result is posterior pelvic tilt and torso turn against the hips which are being held in line by the legs.

The back leg internally rotates and the pelvis turns back against it with the front leg raised.
The obliques and other core muscles turn the front shoulder toward the back hip.
The back leg abducts and externally rotates, the COM moves forward and the pelvis opens. The front leg externally rotates into foot plant.
As the rear leg is unweighted the abduction and external rotation of the leg is relaxed and the leg recoils into the pelvis.
The front leg becomes weight bearing and the knee flexes initiating SSC.
The front leg extends pushing the front of the previously offset pelvis rearward.
The pelvis is opened more by the action of the front leg and the slack is taken out of the counter rotated core. The shoulders are rotated back to a neutral position assisted by a contraction of the abdominals.

The hips lead the way and the shoulders catch up to and beyond contact.

The pelvis and shoulder rotation speed slows exponentially as the barrel of the bat extends and angular momentum is conserved. As the mass moves further from the center of rotation, conservation of momentum dictates that the rotation will slow, squared to the change in the radius.
The batter instinctively extends the hands and barrel to further slow rotation after completion of the swing. He also torques against rotation by replanting the rear leg to stop rotation and to maintain balance.

I challenge you to point out where the picture evidence proves my description incorrect.

 

[Bobby Shirer]

Please stop saying the hips open the core. That ground up nonsense is slow and drag.

here’s Will Clark demonstrating exactly what I’m saying again. The initial opening of the front hip is the obliques pulling. The actual hips hardly rotate. good players try to hit against the hips and legs. Not open everything up and twist their body open like a top.



if you open up your hips through the legs you lose the ground, you lose your torque. You are just spinning.

Outside pitch location.
Counter rotated shoulders
Hips turn
Front leg extends
Shoulders catch up to hips at contact
See it?

 

[Work=wins]

Shawn, thats a good one to look at. A lot of the time its merged with iliacus and just called iliopsoas. Iliacus attaches to the iliac crest and femur. They kind of join forces lower toward the femur. Its part of the hip flexors and Wiki says its the strongest hip flexor. I think if you do a minute straight of situps and then try to run you will feel this one pretty good.

Here is what does what

Flexors

View attachment 16911

Hip extensors

View attachment 16912

Hip rotators

View attachment 16913

If you look at all these muscles and realize that they can only forcefully contract you can see how every movement of the hip happens.

Then look at the size, number, and leverage these muscles have. Obliques move the torso by pulling on the pelvis. Not move it.


Obliques rotate the torso. They can tilt the pelvis a little bit.

Just because the obliques are contracting and the hip is also moving does not mean they are moving the hip meaningfully.

Hanging or in midair alot is done off the inertia and momentum of the lower limbs. It is still these muscles pictured.

I am not making this up. It is the way it is. I cant believe this is even an argument really.

you know the obliques don’t do it? But you don’t what does? you can’t believe we are having this discussion? Do you know or are you guessing? If you know I’m all ears.

The fact is if your opening the hips to swing the bat; that is slow and it won’t play against good pitching. Most guys will try to keep the hips closed and swing against the hips with the obliques to create a tighter turn to the ball. With that being said, guys that have more mobility in their hips will ‘open’ a bit farther to take the slack out. But no good player opens their hips to swing the bat.

The obliques contract and pull the pelvis into posterior tilt. They don’t tilt them a little bit, they tilt the crap out of them.

something is pulling those hips forward. What is it? The core maybe? Obliques? I feel the core pull while the legs resist. If you want to say the legs resisting opens the pelvis. Ok. But your statement that the legs opening opens the hips is false.

The obliques are pulling the pelvis laterally forward. Or is that something else?





after Mikes posterior coil, and his hips laterally shift. What’s making that happen? The legs? They aren’t moving. The core seems to be stretching though.

 

[Work=wins]

The back leg internally rotates and the pelvis turns back against it with the front leg raised.
The obliques and other core muscles turn the front shoulder toward the back hip.
The back leg abducts and externally rotates, the COM moves forward and the pelvis opens. The front leg externally rotates into foot plant.
As the rear leg is unweighted the abduction and external rotation of the leg is relaxed and the leg recoils into the pelvis.
The front leg becomes weight bearing and the knee flexes initiating SSC.
The front leg extends pushing the front of the previously offset pelvis rearward.
The pelvis is opened more by the action of the front leg and the slack is taken out of the counter rotated core. The shoulders are rotated back to a neutral position assisted by a contraction of the abdominals.

The hips lead the way and the shoulders catch up to and beyond contact.

The pelvis and shoulder rotation speed slows exponentially as the barrel of the bat extends and angular momentum is conserved. As the mass moves further from the center of rotation, conservation of momentum dictates that the rotation will slow, squared to the change in the radius.
The batter instinctively extends the hands and barrel to further slow rotation after completion of the swing. He also torques against rotation by replanting the rear leg to stop rotation and to maintain balance.

I challenge you to point out where the picture evidence proves my description incorrect.View attachment 16914View attachment 16915View attachment 16916View attachment 16917View attachment 16918View attachment 16914View attachment 16915View attachment 16916View attachment 16917View attachment 16918

shut you down after the first sentence. The back leg doesn’t IR. Look at the knee ER as he gathers. try doing that while in IR. Hopefully you don’t break anything. Good luck!

the swing is about the movements within the swing. Not static positions in the swing. Stills are useless.

 

[Work=wins]

Bonesaw,

the obliques can pull the pelvis into massive posterior tilt. But can’t move the pelvis laterally while the front foot is in the air? Hmmm

 

[Bonesaw]

Bonesaw,

the obliques can pull the pelvis into massive posterior tilt. But can’t move the pelvis laterally while the front foot is in the air? Hmmm

The front leg is being externally rotated in the air by any/all of these

 

[Bonesaw]

you know the obliques don’t do it? But you don’t what does? you can’t believe we are having this discussion? Do you know or are you guessing? If you know I’m all ears.

The fact is if your opening the hips to swing the bat; that is slow and it won’t play against good pitching. Most guys will try to keep the hips closed and swing against the hips with the obliques to create a tighter turn to the ball. With that being said, guys that have more mobility in their hips will ‘open’ a bit farther to take the slack out. But no good player opens their hips to swing the bat.

The obliques contract and pull the pelvis into posterior tilt. They don’t tilt them a little bit, they tilt the crap out of them.

something is pulling those hips forward. What is it? The core maybe? Obliques? I feel the core pull while the legs resist. If you want to say the legs resisting opens the pelvis. Ok. But your statement that the legs opening opens the hips is false.

The obliques are pulling the pelvis laterally forward. Or is that something else?





after Mikes posterior coil, and his hips laterally shift. What’s making that happen? The legs? They aren’t moving. The core seems to be stretching though.

Have you read anything I've posted and thought about it? Or at least read it? I didn't write it. It's simply the way the body works. Please stop spreading misinformation.

 

[Work=wins]

The front leg is being externally rotated in the air by any/all of these

View attachment 16922

This doesn’t seem to be the case.