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Fred Duncan
@Fred__Duncan
Muscle damage from eccentrics is context-dependent. Repeated exposure rapidly reduces soreness. And high force can be produced eccentrically with a lower metabolic cost than concentric work.

In other words, eccentrics aren’t a special stressor. They’re a normal contraction
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Fred Duncan
@Fred__Duncan
type that shows up in sprinting, jumping, deceleration, and strength training every day.

If performance is the goal, eccentrics should be part of a well structured plan.

If you want a deeper understanding of how eccentrics actually fit into a complete speed program and how
Fred Duncan
@Fred__Duncan
they interact with sprinting, plyometrics, and strength work, that’s exactly what I cover inside Project Speed Bundle.

It breaks down:
• Acceleration and max-velocity development
• Strength training that actually transfers
• Plyometrics, isometrics, eccentrics, and tempo
Fred Duncan
@Fred__Duncan
work
• How to organize these pieces

If you’re someone who lifts, wants to sprint and jump, and needs a clear structure for blending strength and speed without overcomplicating it, Strength X Speed is the next step.

It’s not an advanced speed program. It’s a practical,
Fred Duncan
@Fred__Duncan
performance oriented approach for people who want to train hard, move fast, and still recover well.

fredduncantraining.com/product/projec…
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