
The Godfather of Bike Fitting, Happy Freedman
Differing opinions on fit.
Differing opinions on fit.
Dr. Stephen Seiler analyzes a 13-plus-hour Zwift ride by Jonas Abrahamsen of the Uno-X Pro Cycling Team from Norway.
Dr. Stephen Cheung reviews recent research that addresses the question of whether strength training can make you faster on the bike.
We review four recent studies from the scientific literature, addressing the hypotheses, methods, and conclusions of each to give you a greater understanding of the latest findings in endurance research.
Coaches Ryan Kohler and Trevor Connor demonstrate how to spot trends in the relationship between power and heart rate using intervals.icu.
We dork out on bike fitting and get honest about mistakes.
In this workshop, Dr. Stephen Seiler dives into the specifics of a famous Mat Hayman training session and also discusses how to “measure” high-intensity repeatability.
We discuss the nuances of base season planning, from the appropriate intensity distribution to the time it takes to produce gains from both aerobic and anaerobic work, and much more.
We break down every aspect of the time trial: part performance art and part crucible for athletic and scientific experimentation.
A blood profile can help athletes track progress and diagnose issues—but they need to know what to look for and work with a physician to interpret the data. This article will help to demystify your blood profile.
Dr. Stephen Seiler demystifies training scores and metrics, giving athletes a clear definition of the fundamental principles of sport science.
If you decide to take supplements as an athlete, you need to understand as much as you can about healthy eating and your body. Supplement responsibly!
Environmental physiologist Dr. Stephen Cheung addresses whether the amount of fat and carbohydrate used for energy changes with the temperature.
Sports medicine guru Dr. Andy Pruitt presents the science and symptoms of the most common knee injuries in cyclists.
In an age when athletes often focus on the specifics, we address the importance of focusing on the fundamentals: training, recovery, and functioning gear—the things that will bring you the greatest return for your investment of time, sweat, and energy.
Gluten is bad news for your body. What, exactly, are the long-term effects and why?
Dr. Stephen Seiler answers five endurance training questions on heart rate, zones, polarized training, rest, and much more.
Ryan and Trevor tackle questions on how running can be used in the base season, recovery for time-crunched athletes, the complexity of workouts, pre-race meal planning, and much more.