The Importance of Gradually Increasing Training Intensity

The speakers discuss the common mistake of people training too easy and the importance of gradually increasing training intensity from threshold to VO2s. They also mention the concept of having a lead-up or 'foreplay' before doing VO2 workouts and a person who is ready for VO2s but not in terms of mobility sets. The chapter transitions to a discussion on the recent obsession with endurance training and the concept of zone two training.