HIIT, I believe everyone already knows it very well. Unlike running, HIIT will cause huge energy consumption in a short time. And because it can cause EPOC, it will increase your metabolism within 1-2 days after training. In fact, the simplest training method of HIIT is alternating sprint and jogging. For example, sprint for 20 seconds, and then jog 1 minute. But now there are more HIIT methods, which are realized by Burpees, jumping with arrows, punching and other actions that require a lot of muscle mobilization.