Q: I’ve heard it brought up a few times by others recently, and I remember from your old daily training blog that you guys sometimes use interval cardio to burn more fat. What is that and how should I use it?
A: There are surprising facts about using interval cardio to burn more fat, but before we get to those, let’s explain interval cardio on a running track. To do interval training, you sprint the straightaways all out and walk the curves. Another good example is running stairs—you run up for intensity and coast down. In other words, you alternate high-intensity bursts with lower-intensity activity.