Identifying ER vs IR Dominance in Pitchers

Physiology plays a major role in lower half pitching mechanics, and a movement assessment may only truly tell half the story when designing a throwing progression. Identifying the “ideal” lower half for an individual athlete is not as black and white as it appears, interpreting the gray area is the key to unlocking an efficient flow of energy up the chain.
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In this breakdown, we not only define what IR (Internal Rotation) and ER (External Rotation) Dominance is, but provide the framework to connect the dots between a comprehensive movement assessment and what is happening on the mound.
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Check out our article How Does Hip Anatomy Affect Your Ideal Mechanics? https://treadathletics.com/how-does-h...
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Chapters:
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0:00 Identifying Hip ER vs IR Dominance
0:08 What is ER/IR Dominance?
3:16 External Rotation Dominance
7:32 Internal Rotation Dominance
13:11 Summary
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