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Fred Duncan
@Fred__Duncan
Overcoming vs Yielding Isometrics - When and Why

Overcoming isometrics bias intent, neural drive, and force expression.

Yielding isometrics bias position specific strength, tolerance and force maintenance.

We often use overcoming ISOs as a warm-up or as a primer/contrast
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Fred Duncan
@Fred__Duncan
pairing.

We use yielding isometrics to prepare joints/tissues for more ballistic or dynamic work or when looking to facilitate stress relaxation later in a session.

If you want to understand how I actually use isometrics inside a speed program, not in isolation, that’s all
Fred Duncan
@Fred__Duncan
laid out in the Project Speed Bundle. 130+ pages. 18 weeks of programming.

My new hybrid program drops this week…

fredduncantraining.com/product/projec…
Fred Duncan
@Fred__Duncan
Acceleration and max velocity are different problems. They deserve different solutions.

Acceleration is about horizontal orientation and impulse over longer ground contacts. You’re pushing the ground back, managing shin angles, and actually moving the COM forward.

That’s why
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