Pitching Biomechanics: Hip Shoulder Separation, Closing the Gap

hip and shoulder

We have talked in the past about hip-shoulder separation and its importance in the pitching motion. In this article, we will dive deeper into the idea of “closing the gap” after max separation has occurred. More specifically:

    • When does it occur (timing)
    • How quickly does it close (explosiveness)
    • How completely does it close

We will also review some potential issues and how we may address them.

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Pitching Biomechanics: Front Foot Landing Can Make Difference!

A pitcher’s foot position at foot strike can provide a solid foundation to facilitate both knee extension and efficient transfer of energy. Foot strike is the moment a pitcher’s front foot makes contact with the ground and is the starting point of energy transfer up the kinetic chain. This energy is ultimately transferred to the ball at release, with efficient energy transfer being aided by the pitcher releasing over a firm front side. A firm front side provides lower body stability for proper upper body positioning through release. This stability is achieved by extending the front knee from foot strike to release and is why knee extension angular velocity at release is correlated with pitching velocity and an important metric to examine in pitchers.

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Why Baseball Biomechanics Information is a Game Changer

baseball biomechanics

Until not long ago baseball biomechanics information from motion capture systems (mocap) was primarily available in research labs, rehab facilities or biomechanics departments at universities.  Much of the work in this arena has been performed by biomechanists who specialize in the study of movement. They generally use the principles of physical mechanics combined with biology to understand:

    • How we move
    • How we can move more effectively and efficiently
    • Why we get injured and how to reduce the incidence of injury

Two prominent figures in the world of baseball mocap have been Dr. Glenn Fleisig and Dr. James Andrews, dating back to 1985 with their work at the American Sports Medicine Institute (“ASMI”).

But times are changing fast… Continue reading “Why Baseball Biomechanics Information is a Game Changer”