Kinematic sequence

[Work=wins]

Saw this. Thoughts?

 

[Traps71]

I’ll leave it to others who are deeper into the bio-mechanics of softball pitching, but that does not track with my understanding of the kinematic sequence (which is happening in context of linear energy being redirected into rotational energy):

1. Hips (seek stride foot angle and stop)
2. Shoulders (lag hips creating stretch reflex; ultimately seek hip angle and stop)
3. Upper arm (rotates internally and compresses against rib cage at about 8 o’clock)
4. Lower arm (rotates internally and whips through the release zone, including brush contact from about 8 o’clock to 6 o’clock)
5. Forearm/hand internally rotate (pronate) after release and arm unloads

 

[DrRiello]

Yeah. Traps has it more correct.
This guy’s interpretation was off.
Good then trunk / shoulders then arm , elbow, forearm , fingers.

The whole straightening of the arm I would suggest disregard big league. Ha


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[Ken B]

Agree with Traps, but would add there is little extension in the fastpitch delivery. The arm maintains flexion throughout release.

 

[STRIKE3]

dude knows nothing about softball pitching. IDIOT! RUN!!!!!

 

[Gags]

In his defense, he did have the ball up at 9:00 - the motion at the end while sitting seemed more natural then when he was standing.


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