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Fred Duncan
@Fred__Duncan
How Eccentrics Make You Faster and More Explosive

- Fascicle Lengthening -> shifts where force can be produced, giving you greater strength at longer muscle lengths

- Tendon Remodeling -> improves the tendon’s ability to store and return elastic energy
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Fred Duncan
@Fred__Duncan
- Better Eccentric RFD -> trains you to apply high levels of force in very short time frames

How it ties into performance

- Longer fascicles = hamstrings that hold up at high velocities

- Stiffer, better adapted tendons = shorter ground contacts

- Stronger eccentric rate
Fred Duncan
@Fred__Duncan
of force = more efficient braking and quicker reacceleration

- Enhanced stretch shortening cycle = higher jumps & more reactive explosiveness.

This is why eccentrics are essential for speed and explosiveness, they build the architecture that sprinting and jumping demand.
Fred Duncan
@Fred__Duncan
If you want the full breakdown on how to use methods like eccentrics, isometrics, plyometrics, it’s all inside Speed Kills, my complete system for building real speed.

fredduncantraining.com/product/speed-…
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