High Intensity Interval Training (HIIT) is one of our favorite classes because it’s one of the quickest yet efficient ways of training. Alternating between bouts of intense activity (think sprints) with periods of less-intense active recovery (or rest), the workout torches calories, burns fat and builds muscle. More evidence that HIIT is a super-efficient workout? You can burn calories for up to 24 hours post-workout. This is known as the Afterburn Effect (also known as Excess Post-Exercise Oxygen Consumption (EPOC)). Here’s how it works: after working out at high intensity, your body needs to take in oxygen at a higher rate than it did pre-exercise so it can cool down, repair itself, and return to its resting state. This requires the body to work at a higher rate so it continues to burn calories. Reap the rewards of this super-efficient workout. Book your next HIIT class here!