The True Definition of Threshold
Your lactate threshold may not be what you think it is. Coach Trevor Connor explores the true definition of this physiological turn point.
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Featured
Coach’s Corner: How to Determine FTP from a 20-Minute Power Test
Coaches Trevor Connor and Ryan Kohler analyze data from 20-minute power tests, offering important lessons on the proper execution of these intervals.
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How to Determine Your Cardiovascular Drift
Cardiovascular drift is an instability in heart rate and stroke volume over time. We show you how to determine it.
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How to Analyze 5×5 Intervals in TrainingPeaks
Coach Trevor Connor and Coach Ryan Kohler walk through their process for interpreting 5×5-minute interval workout sessions in TrainingPeaks.
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Latest
The High-Fat vs. High-Carb Debate Rages On
For decades, Dr. Timothy Noakes and Dr. Louise Burke have debated the best diet for performance, from opposite ends of the spectrum. In a series of new articles, the two nutrition pioneers continue the discussion.
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3 Ways to Boost Testosterone
In this video we break down three science-backed ways athletes can naturally support healthy testosterone levels: better sleep, proper nutrition, and resistance training.
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“Backed by Science” Doesn’t Mean What You Think, with Dr. Stephen Cheung
Science isn’t perfect; humans can bring bias and poor design. Today, Dr. Stephen Cheung helps us understand the potential pitfalls of scientific inquiry, and the things we can trust.
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Should We Rethink Zone 2 Training?
A new study challenges the hype around Zone 2 training, but Trevor and Chris explain why the real answer is more nuanced: intensity matters, Zone 2 still has value, and coaches and researchers need to work together to understand both.
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How Elite Athletes Cope With Pain: Mental Toughness & Adaptive Coping Explained
Why do some athletes thrive under pain while others break down? We explore the hallmarks of elite mental toughness.
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Cross-Training & Injury Risk — Triathletes vs Runners Explained
We review a new study on the risk of injury in triathletes vs. marathon runners. The results defy conventional wisdom.
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Potluck Discussion – Heat Training, Back Pain, and Grant’s Big Crash
We discuss whether a couple of heat training sessions a week has any reward (or risk), why lower back pain seems to be on the rise in cyclists, and Grant details his crash at a local race.
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Durability Explained
Trevor Connor and Chris Case break down the concept of durability—the ability to maintain performance deep into a race or training session, even after hours of fatigue.
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What Sports Science Is Getting Wrong in 2026
What is sports science getting wrong in 2026? In this clip from our 400th Fast Talk episode, Dr. Iñigo Mujika, Dr. Stephen Seiler, and Prof. Louise Burke expose some of the biggest blind spots in sports science.
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Are CGMs, Sweat Testing, and Core Temp Worth It?
We react to the 2025 review “Nutritionally Relevant Technological Advancements in Professional Cycling” and give practical takeaways on the most talked-about devices athletes are wearing right now.
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VO2max vs Durability: What Really Predicts Endurance Performance?
For decades, VO2max and time-to-exhaustion dominated endurance research. But world-leading experts now argue that durability and real-world performance tell a much more complete story.
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The Science of Power Meters, with Stages Cycling’s Pat Warner
You probably own a power meter, but do you know how it measures power or how these devices have evolved over 20 years? We were joined by Stages Cycling’s head of product development Pat Warner to pull back the curtain on the technology of power measurement.
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Who Is the Greatest Endurance Athlete of All Time?
Who is the greatest endurance athlete of all time? In this clip from our 400th Fast Talk episode, world-leading experts Dr. Iñigo Mujika, Dr. Stephen Seiler, and Prof. Louise Burke debate the greatest endurance athlete in history.
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The Biggest Sport Science Breakthroughs: Seiler, Mujika, and Burke Explain
In this special Fast Talk milestone episode, three of the world’s leading experts in endurance physiology—Dr. Stephen Seiler, Dr. Iñigo Mujika, and Dr. Louise Burke—discuss the breakthroughs, mistakes, and technological shifts that reshaped how athletes train, recover, fuel, and measure performance.
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Endurance Training for Longevity—Why Hard Efforts Beat More Hours
This YouTube-exclusive discussion looks at a new longevity study that asks a big question: Does exercise intensity matter more than volume for living longer and reducing cardiovascular risk?
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Fast Chats — What Differentiates Cycling’s Greats, and New Research on the Causes of Overtraining Syndrome
We discuss new research on what it takes to win the biggest races in cycling—and how that can help your own racing—and we analyze a study that looks at the potential causes of overtraining syndrome.
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Cycling Race Craft and Tactics with Chris Horner
We sit down with one of the smartest bike racers of his day, and the oldest grand tour winner, to hear stories of what it takes to win bike races and outfox the competition.
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How to Lose Weight in Season Without Hurting Performance
Registered Dietician Andrea Schwartz talks with us about how she works with athletes in-season to hit their weight goals while not getting themselves off-track.
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