The rear leg

[HYP]

Mann, you using coil to define rotation.

Your rear femur and rear hip are coiling in the rear hip socket. Turn your back foot in....stick your butt out a little without letting your rear knee flare out and don't lock out the rear leg - keep the knee bent....that should give you a feel of some coil...now rotate your front hip back towards the catcher a little keeping the rear leg firm....now you have more coil....as you stride out your rear femur should be maintain that coil by internally rotating more....now your have more coil and your rear hip is coming from the inside....your hands control the release of everything when the brain decides its time to turn the barrel....

MTS, how does the front hip rotate back? The pelvis is opened because of the rear leg. The rear femur moves down and forward which forces the pelvis open. The muscles in the lower back are pulling back to keep the coil.

JMHO

 

[HYP]

I already described it. He pushes with the back leg, when the front heel drops the back heel is coming up, which is the transition time, and then the ground reaction force coming up the front leg, pushes the front hip out.

All of his weight is coming down on that back leg. How far does his lead hip move after heel drop? His hips "finish" is not caused by the front leg push back. He does have a firm lead leg but it doesn't appear to be pushing back. My software is crap right now so I can't slow down or manipulate video but I would like to see where his hips are at "go", contact and a frame or 2 after contact.

 

[RayR]

I meant the front hip rotates back as in counter rotates....closes a little....not opens....just as a way to tighten the initial coil of the rear leg/hip. Rotate is probably not the right word - but I was trying to not use coil.

MTS, how does the front hip rotate back? The pelvis is opened because of the rear leg. The rear femur moves down and forward which forces the pelvis open. The muscles in the lower back are pulling back to keep the coil.

JMHO

 

[mann]

Here are 2 images i pulled from Kaniva, when i believe all the wieght is now on the front front.




Is go slot to you HYP? Contact, the hips are popping open, I will try images right at contact , and a frame or two after contact.

five frame is good with images, and gifs.

 

[jbooth]

All of his weight is coming down on that back leg. How far does his lead hip move after heel drop? His hips "finish" is not caused by the front leg push back. He does have a firm lead leg but it doesn't appear to be pushing back. My software is crap right now so I can't slow down or manipulate video but I would like to see where his hips are at "go", contact and a frame or 2 after contact.

I thought you were going to stay away from the technical threads. You are so far wrong it is unbelievable. It's obvious from all of your posts on this topic of leg action that you simply do not understand the physics and bio-mechanics that are happening.

Does his front foot move forward?

Does his back heel come up?

When his front foot moves forward, it is due to him pushing off of the back foot. That creates momentum. Even if he only moves a millimeter he has momentum moving forward. When his front foot touches down, the Earth pushes back. He firms up the leg to prevent himself from lunging. THAT is the BLOCK. He lands on a bent from leg, and then he straightens it, THAT is the PUSH.

Granted the block and push with the front leg are mostly an instinctive move to prevent lunging forward, but it happens in EVERY swing.

Yes, the back leg/hip make the initial movement to open the hips, but after the pressure gets to the front foot, force is coming up the front leg, and since the hip is already slightly open, that force pushes the front hip out and back. By the time the weight is on the front foot, the ability to push from the back is diminishing. You don't pivot on the top of the back femur. It drives the hip forward. The femur does pivot in the socket, but the socket is being moved mostly forward. When the front foot gets weight, the push back from the Earth pushes the top of the front femur into the hip socket and pushes the hip out and back. As the front hip goes rearward, so does the torso, and you finish on the back foot.

Bonds' pressure is going from back foot, to front foot, and then to the back foot. He isn't staying on the back foot the whole time.

Push-block-push is a flow. It isn't 3 distinct and completely separate actions. The block and push back are nearly simultaneous.

If you push forward off of the back foot, then there must be a block to stop you from lunging. If your weight is shifted to the front foot, you can't turn on top of the back leg.

Do you believe that no weight goes to the front foot? You show and talk about the one-legged golfer a lot. That isn't what happens when you have two legs. What the one legged (rear leg) golfer does at the start, is what hitters do, but hitters get to the front foot before and during contact, and then fall back to the back leg. They don't hit off of the back foot.

 

[jbooth]

MTS, how does the front hip rotate back? The pelvis is opened because of the rear leg. The rear femur moves down and forward which forces the pelvis open. The muscles in the lower back are pulling back to keep the coil.

JMHO

"The rear femur moves down and forward which forces the pelvis open."

If you push from a coiled position, this is true. It STARTS to turn the pelvis open. But, the forward movement shifts the weight to the front leg, and the push from the back leg diminishes.

The front leg must then block the forward movement to prevent lunging, and push the hip back, to finish the rotation.

"The muscles in the lower back are pulling back to keep the coil."

Utter ignorance of anatomy. This is completely inaccurate.

What I'm telling you is facts confirmed and agreed upon by multiple people with PhD's in human movement, who have studied the swing in labs with hi-tech equipment, and by hundreds of physicists who know Newton's laws very well. But, I guess since you believe differently, they have all made mistakes in their research.

Just because you can't comprehend what they say, doesn't make them wrong.

 

[redhotcoach]

The rear femur moves down and forward which forces the pelvis open. The muscles in the lower back are pulling back to keep the coil.

JMHO

 

[jbooth]

Yep, the femur moves down and forward due to abduction and external rotation. That gets the hips moving forward and rotating, but once the weight gets to the front foot, the back leg loses it's ability to push, and that happens before the hips get fully turned.

The weight is on the front foot from about the bat lag position, up until contact, and then it goes back onto the back foot.

For throwing; the weight is on the front foot before and after ball release. You don't throw off of the back foot, and you don't hit off of it either.

BTW; do you have the video of that catcher showing the full motion through release?

 

[redhotcoach]

I don't think anyone has said, or believes that the rear foot is weighted at contact, or that it is pushing through the entire swing.

What the one legged (rear leg) golfer does at the start, is what hitters do, but hitters get to the front foot before and during contact, and then fall back to the back leg. They don't hit off of the back foot.

Yes...I would hope it is during contact, but yes. I would say that the one legged golfer has an unweighted foot at contact also.

 

[HYP]

I thought you were going to stay away from the technical threads. You are so far wrong it is unbelievable. It's obvious from all of your posts on this topic of leg action that you simply do not understand the physics and bio-mechanics that are happening.

Does his front foot move forward?

Does his back heel come up?

When his front foot moves forward, it is due to him pushing off of the back foot. That creates momentum. Even if he only moves a millimeter he has momentum moving forward. When his front foot touches down, the Earth pushes back. He firms up the leg to prevent himself from lunging. THAT is the BLOCK. He lands on a bent from leg, and then he straightens it, THAT is the PUSH.

Granted the block and push with the front leg are mostly an instinctive move to prevent lunging forward, but it happens in EVERY swing.

Yes, the back leg/hip make the initial movement to open the hips, but after the pressure gets to the front foot, force is coming up the front leg, and since the hip is already slightly open, that force pushes the front hip out and back. By the time the weight is on the front foot, the ability to push from the back is diminishing. You don't pivot on the top of the back femur. It drives the hip forward. The femur does pivot in the socket, but the socket is being moved mostly forward. When the front foot gets weight, the push back from the Earth pushes the top of the front femur into the hip socket and pushes the hip out and back. As the front hip goes rearward, so does the torso, and you finish on the back foot.

Bonds' pressure is going from back foot, to front foot, and then to the back foot. He isn't staying on the back foot the whole time.

Push-block-push is a flow. It isn't 3 distinct and completely separate actions. The block and push back are nearly simultaneous.

If you push forward off of the back foot, then there must be a block to stop you from lunging. If your weight is shifted to the front foot, you can't turn on top of the back leg.

Do you believe that no weight goes to the front foot? You show and talk about the one-legged golfer a lot. That isn't what happens when you have two legs. What the one legged (rear leg) golfer does at the start, is what hitters do, but hitters get to the front foot before and during contact, and then fall back to the back leg. They don't hit off of the back foot.