Peter Attia· MD
um I generally don't just because I like to have a lot of reps before I go for broke so even when I was like a cyclist and doing two Zone V2 Max workouts a week they were always preceded by a long the metric we would use um on a bike was kils so was how many kogs of work would you do before you would do the super hard sets and it had to be at least a th kogs which is translate to at least a thousand calories of work