Call them whatever you wish, but the concept is the same: breaking longer blocks of high-intensity work up with frequent, short rest breaks.
To truly polarize your training, you need to focus your training in two key zones. Coach Trevor Connor explains how this works for the sport of cycling, but the physiology applies to all endurance sports.
Heat, humidity, wind, pacing—we take a look at some of the factors that affect success at the Ironman World Championship in Kona.
Whether by yourself or in a group, you can use these cyclocross games to train for the unique demands of the sport ahead of the season.
Fast Talk all-star guests including Dr. Iñigo San Millán, Dirk Friel, and Ben Delaney reveal their favorite workouts.
Coaches Ryan Kohler and Trevor Connor demonstrate how to spot trends in the relationship between power and heart rate using intervals.icu.
Dr. Stephen Seiler and Trevor Connor discuss polarized training, intensity distribution, and endurance in this webinar with CKO Sprint.