The Science Behind Going Slow to Be Fast
The concepts of central and peripheral conditioning help explain why an effective training base period leads to speed and durability in the race season.
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Physiology > Endurance Performance Data Analysis
Predictors of Performance in Ultra Runners
What are the keys to success in ultra running, and are they the same across all distances?
Endurance Performance Testing and Monitoring—Past, Present, and Future
Dr. Stephen Seiler presents on the history and future of endurance sports testing and monitoring.
How to Analyze the Power Duration Curve
Coaches Trevor Connor and Ryan Kohler analyze the Power Duration Curve in order to illustrate how you can train fatiguability.
Wprime, Critical Power, 6-minute Power, and Variable Intensity Races
In this video, Dr. Seiler thinks out loud—with math—to explore how critical power and variable intensity races might connect in practice.
How to Track the Long-Term Relationship Between Heart Rate and Power
Coach Ryan Kohler reviews season-to-season changes in heart rate/power distributions to illustrate improvements across the different energy systems.
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.
Intensity Changes Between Fast-Start and Steady Intervals, with Dr. Stephen Cheung
Dr. Stephen Cheung discusses a study comparing steady-state versus fast-start intervals, then uses Xert software to model how a fast-start interval can be much more intense.
Zwift Hour of Power: Can a 60-Minute Zwift Race Work as a Test?
Dr. Stephen Seiler explores whether a Zwift race of about 60 minutes can be a decent substitute for a 60-minute FTP test.
One Workout — Many Responses
In this workshop, Dr. Stephen Cheung uses Xert software to illustrate how a single workout can impact athletes differently depending on their phenotype.
Coach’s Corner: Assessing 60- to 90-min Power to Support 20-min Test Data
Coaches Trevor Connor and Ryan Kohler analyze data from longer threshold efforts to support results garnered from the popular 20-minute power test.
Q&A on Max Heart Rate, Time-Crunched Recovery, TSS, and Protein
Ryan and Trevor field questions on max heart rate, TSS, recovery in athletes who only train 8-10 hours per week, protein consumption during ultra-endurance events, and more.
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.
What Exactly Is a Long Slow Distance Ride?
Coaches Trevor Connor and Ryan Kohler analyze ride data from one of Trevor’s LSD (long, slow distance) rides in order to explain the correct execution of one of these fundamental rides.
How to Analyze Cyclocross Power Files
Coach Grant Holicky and head coach Ryan Kohler teach you how to analyze cyclocross power files in TrainingPeaks.