What Causes the Hips to Rotate in a HL Swing?

[rdbass]

What are you saying, Players are just standing on top of the ground, and never use it for leverage?

straightening of the front leg be a trigger to initiate the swing

Not to start their swings. I know ground force is used but, not as a 'trigger' to start a swing.

 

[Bobby Shirer]

Could the straightening of the front leg be a trigger to initiate the swing once at launch position?

Exactly! I think this is the high level swing launch position. They time the pitch at foot plant. Triggering from the hands gets the hands out front of the swing as disconnects the hands from the power. Setting up the swing to be triggered from the extension of the front leg, with all the slack taken out, keeps the hands connected to the power source.

 

[_MIA_]

Could the straightening of the front leg be a trigger to initiate the swing once at launch position?

Trout's hands have already crossed his body by the time the front leg straightens.

 

[Bobby Shirer]

A swing that 'starts' from the ground up is a slow swing.

A swing that loads against the back leg is a slow swing. A swing that loads against the front leg and a torqued core is an instantly released, explosive swing.

 

[Bobby Shirer]

Trout's hands have already crossed his body by the time the front leg straightens.

It would be nice if you could pause the video at contact and post a still pic. This looks like and inside pitch that he adjusted to and it doesn't look like a home run or 100% swing. Pulling the hands through got him to contact at the expense of power. He disconnected from the power source.

 

[clemenslee1]

Exactly! I think this is the high level swing launch position. They time the pitch at foot plant. Triggering from the hands gets the hands out front of the swing as disconnects the hands from the power. Setting up the swing to be triggered from the extension of the front leg, with all the slack taken out, keeps the hands connected to the power source.

This I'm not quite following

 

[_MIA_]

It would be nice if you could pause the video at contact and post a still pic. This looks like and inside pitch that he adjusted to and it doesn't look like a home run or 100% swing. Pulling the hands through got him to contact at the expense of power. He disconnected from the power source.

I will say it again, the front leg straightening is nothing more than reaction to the force of the swing.

 

[Bobby Shirer]

Still frames, please. I see all of them with their hands on their right side at contact, not even near their belly button. Nonetheless, it's not possible for you to have a bend in the back arm and a straight front arm and get your hands past the center of you body.

 

[_MIA_]

Could the straightening of the front leg be a trigger to initiate the swing once at launch position?

Exactly! I think this is the high level swing launch position. They time the pitch at foot plant. Triggering from the hands gets the hands out front of the swing as disconnects the hands from the power. Setting up the swing to be triggered from the extension of the front leg, with all the slack taken out, keeps the hands connected to the power source.

In the above swings the leg straightens either right before contact (Trout, Betts and Cabrera) or after in the case of Hugo. You don't need stills to see that. I don't know of anybody who says swing initiation is near contact, or even better, after contact...

 

[julray]

Love the Hugo swing, really shows the ability to adapt to an off speed pitch when proper mechanics are executed. You can see she expected a fastball, but then reacted to the change up, all because of a controlled sequence and not releasing her backside too early.. great poise at the plate