The phrases EPOC and EPOC Training get thrown around a lot these days. A lot of people have heard about EPOC but are unaware what the term really means.
Let me clarify.
When we begin to exercise, our body decides which energy system to use depending on the intensity of the exercise. At the start of exercise, depending on the difference between the demands before exercise and during exercise, there is usually a short delay in meeting necessary oxygen demands. This is why a warm-up is so crucial!