The Case for the Inverted W Part 2



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  1. Blake Herring says:


    In looking at the summation of speed principle illustration, it looks to me that the distal parts of the body and their velocity are not as high as the proximal velocity and the velocity of the ball. When teaching pitchers tempo of their delivery, are we gaining momentum with the velocity of distal to proximal points of the body and through the ball or are we full velocity with the legs through the hips through the rotation of the torso and shoulders and upper arm, forearm and hand/ball the entire time through the delivery?

    Which route allows momentum to transfer and for timing of body parts to happen most efficiently? 1. controlled, quick, quicker, full speed or 2. full speed, full speed, full speed, full speed.

    Please tell me if I am getting ahead of your 4 part series, but is arm action a result of tempo of the body(distal to proximal) and will/can it be affected based on which route you go with teaching tempo of the body – #1 or #2 that I described above?

    Thank you,


    • Paul Nyman says:

      From a physiological perspective it’s my opinion that a segmental velocity increase i.e. proximal to distal is probably the most efficient way. There’s some fairly reasonably sound physics reasons for my statements which at some point I will try to cover in another article.

      Also I believe from a ability to control the body most accurately in terms of timing and movement pattern the proximal to distal sequence is best.

  2. Turn 22 says:

    Would I be correct in assuming that early hip rotation creates a break in the chain? Even if the shoulders remain closed.

    • Paul Nyman says:

      if you define early hip rotation as rotation that decelerates or comes to a stop before the next segment i.e. mid torso/upper body can connect then yes. Again the summation of speed principle i.e. you want each successive body segment to engage at the maximum velocity of the preceding body segment.

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