Workouts
Workout
Workouts
Workout
The famous Norwegian 4×4: four 4-minute intervals at 115% FTP with 3-minute recoveries. One of the most studied and effective VO2 max protocols in endurance sport.
Repeat 4 times
VO2-focused intervals raise aerobic ceiling and repeatability for attacks, climbs, and hard surges.
Useful when you want sessions that match tags such as VO2 Max, 4x4, Norwegian, HIIT.
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