How Eccentrics Make You Faster and More Explosive - Fascicle...
Fred Duncan@Fred__Duncan
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Sep 08, 2025
~1 min read
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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
- 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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- 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
How it ties into performance
- Longer fascicles = hamstrings that hold up at high velocities
- Stiffer, better adapted tendons = shorter ground contacts
- Stronger eccentric rate
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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.
- 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.
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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-…
fredduncantraining.com/product/speed-…