- Jul 29, 2013
- 1,200
- 63
The RHE is due to limitation in range of motion. Why does a hitter put pressure on the instep of the back leg? How far can the rear hip extend the leg rearward? At some point the leg can't extend rearward any more. It is literally attached at the hip!You are under the impression that it's being said the legs are not used. They just aren't used in the way people think. RHE is created bc the pelvis is moving away from the rear leg. Much like walking. Not bc the rear leg is pushing into RHE. The legs are in a secondary role.
Look at the Bustos clip. Her back knee is not advancing until right before the pause. Her pelvis is moving away from it. Her rear leg then snaps under. The pause in the clip is what is considered close to a "hitting position" @Bonesaw
Look at WW's daughter. Same moves.
The knob is getting yanked out from under the barrel as the hands work to chop down on the ball. The more you get the hands right the more your legs learn to quiet down. The chop down / hammer action of the wrists is certainly counter intuitive. But, the better you get at it the more the hands get flat faster to allow the release from radial to ulnar. I don't know if the centripetal force is a factor keeping the barrel from coming over the top. That is out of my pay grade. But, it feels exactly like you are chopping down. It just never does.
Same for the front leg. It gets extended, pushing the pelvis rearward and at some point can't extend any more. ROM.
The pelvis is turned by the extension of both legs.
As the pelvis is turned, the legs reach their limit of ROM and no more rotation is possible.
The pelvis isn't being moved away from the rear leg, it is being moved by the rear leg via hip extension. The very word extension tells it all.
The rear leg gets dragged forward by pelvic rotation because the front leg still has ROM after the rear leg reaches it's limit.
WW's daughter has a pretty swing, but she doesn't use her legs much so there's no power. She swings as though someone told her "Do not use your legs. They will cause problems in your swing." I wonder who might have done that?
The bat rotates because the rear hand is used as a fulcrum against which the front arm applies leverage to the bat. The ONLY way rotation happens because of torque. There is no other mechanism to create rotation. NONE!
The barrel doesn't come over the top because the rear hand fulcrum is applying downward resistance to the upward pull of the front arm.
Centrifugal force is a result, not an action. The barrel rotates down because of the upward force created by the front arm, offset from the center of mass of the bat and because of the fulcrum of the back hand.
