21 – The Slowest Cyclists Improve the Fastest — Here’s Why

This episode breaks down why chasing every ride at medium effort keeps you stuck — and why riding slower on purpose builds the engine that makes you faster.

What You’ll Learn:

The Ego Trap
Why treating every ride like a race puts you in a gray zone that’s too easy to build fitness and too hard to recover from.

Polarized Training
The research behind the 80/20 split — 80% low intensity, 20% genuinely hard, almost nothing in between. Why this is how elite endurance athletes actually train.

Why Easy Days Make Hard Days Work
Real recovery on easy days is what lets your hard days be truly hard. Skip one and the other falls apart.

Consistency Over Intensity
Riders who train slow and steady stick with it. Riders who go hard every day burn out. Over months, consistency wins.

How To Apply It
Practical breakdown: how to structure easy days, how many hard days per week, and how to stop the group ride from sabotaging your plan.

Sources & Research

  1. Polarized/80-20 training model — Seiler and Kjerland’s 2006 research measured training intensity distribution across elite endurance athletes, finding roughly 80% low intensity, 20% high intensity, with very little in the middle. Published in Scandinavian Journal of Medicine & Science in Sports. Fast Talk Laboratories

  2. Randomized controlled evidence — Stöggl and Sperlich’s 2014 randomized trial found polarized training blocks produced larger gains in VO2max and time-to-exhaustion than threshold-heavy or pure-volume blocks. Published in Frontiers in Physiology. Fast Talk Laboratories

  3. Why the “grey zone” backfires — most recreational cyclists spend too much time in the 76-105% FTP range, which represents the worst trade-off between recovery cost and adaptation stimulus (Polarized.cc, drawing on Seiler’s body of work). PubMed Central

  4. Fat oxidation / aerobic base at low intensity — low-intensity exercise (50W) was shown to be optimal for maximal whole-body fat utilization (Physiological Reports, 2020). Separately, endurance athletes show greater mitochondrial volume density and fat oxidation capacity than untrained controls, with fat oxidation peaking at low-to-moderate intensity and declining above ~75% VO2max (published in Nutrients/MDPI). The Physiological Society

  5. Endorsement from the source researcher — Seiler found elite athletes doing about 80% of training at low intensity and only 15-20% at high intensity, with very little in between, calling it a “low-risk, high-reward” model (Strava/Stories). PubMed Central

DON'T MISS OUT!
Pedal My Way Newsletter

Stay up-to-date on whats happening at PMW. No spam, we promise!

Invalid email address
We process your personal data as stated in ourPrivacy Policy. You may withdraw your consent or manage your preferences at any time by clicking the unsubscribe link at the bottom of any of our marketing emails.

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.

PMW Quiz Popup