HIIT Burn 1000 Calories - 50 Min Super Sweaty HIIT Workout Scott Admin posted on 3 years ago — updated on 1 second ago 340 views This workout is intense. It consists of 15 exercises X 3 rounds. Since the level of the exercises increases from the 1st round to the 3rd round, you can repeat the 1st round 3 times if you are a beginner. fitness workout hiit Scott Follow Author, educator, musician, dancer and all around creative type. Founder of "The Happy Now" website and the online jewelry store "Silver and Sage".