HIIT & VO₂max Training: What Actually Makes You Faster

VO₂max training is often misunderstood and misapplied.In this episode, i'll talk you through the basics of VO₂max intervals, VO₂ kinetics, and why many HIIT workouts fail to deliver the intended aerobic stimulus. Using recent research comparing long versus short VO₂max intervals, I'll help explain why time spent near VO₂max matters more than pace, heart rate, or perceived effort.We also explore how VO₂max training fits into marathon preparation, why it plays a supporting, non-dominant role, and how to use it strategically without compromising endurance development or recovery.