Driveline MoCap Blog

[ArmWhip]

If you're into the science you might find this interesting.

Hitting Biomechanics

Bat Speed, Point of Contact, and Rotational Velocities Since finalizing the hitting set-up in our motion capture lab (The Launchpad) in July of 2021,

www.drivelinebaseball.com

 

[Rolling Hard]

Pretty cool. The most interesting part.

Interestingly, the relationship between rotational velocity and bat speed / exit velocity gets stronger the further one moves up the chain (or toward the bat). So, it may be possible for an athlete to overcome slower pelvis and torso rotational velocities with higher arm and hand speeds later in the swing to generate bat speed.

Another interesting takeaway from this table is that max pelvis angular velocity has a weaker correlation to bat speed and exit velocity than pelvis angular velocity at foot plant. In other words, it may be more important that the pelvis is moving quickly as a hitter lands with their lead leg than it is to max out pelvis rotational velocity at any other point during the swing.

My take:
The ole slow feet, fast hands saying is true. Good swings have rhythm/tempo. Early bat speed and running starts can be over done to the determent of the hitter.

 

[Work=wins]

Pretty cool. The most interesting part.

Interestingly, the relationship between rotational velocity and bat speed / exit velocity gets stronger the further one moves up the chain (or toward the bat). So, it may be possible for an athlete to overcome slower pelvis and torso rotational velocities with higher arm and hand speeds later in the swing to generate bat speed.

Another interesting takeaway from this table is that max pelvis angular velocity has a weaker correlation to bat speed and exit velocity than pelvis angular velocity at foot plant. In other words, it may be more important that the pelvis is moving quickly as a hitter lands with their lead leg than it is to max out pelvis rotational velocity at any other point during the swing.

My take:
The ole slow feet, fast hands saying is true. Good swings have rhythm/tempo. Early bat speed and running starts can be over done to the determent of the hitter.

Fast hands and time the swing w the front foot? Sounds about right to me. Fast hands is easy. Timing the front foot is the harder part. So much goes into that. Nice breakdown RH.

 

[tomorrow]

Does anyone have suggestions on how to work on this "it may be more important that the pelvis is moving quickly as a hitter lands with their lead leg than it is to max out pelvis rotational velocity at any other point during the swing."

Looking for exercises, stretches, or drills that work on pelvis rotational velocity at toe touch.

 

[Work=wins]

1,000,000 question. @TDS has been answering it for years. None of us like to listen.

 

[_MIA_]

 

[Shawn]

Does anyone have suggestions on how to work on this "it may be more important that the pelvis is moving quickly as a hitter lands with their lead leg than it is to max out pelvis rotational velocity at any other point during the swing."
.
Looking for exercises, stretches, or drills that work on pelvis rotational velocity at toe touch.

Yeah there is a snap. We all should know by now how it is created

 

[_MIA_]

Every.F’ing.Thread.

 

[Rolling Hard]

The snap happens at front foot heel strike and both legs are involved in the snap.

 

[Shawn]

The snap happens at front foot heel strike and both legs are involved in the snap.

You can’t shoot a canon from a canoe!

But, It’s nothing like say Jack Mankin saying the front leg creates rotation by extending and driving hip rotation from a completely balanced position. Rotation around the spine axis. Believing the front leg is most important.