This HIIT workout is designed as a pyramid; increasing in intensity and then coming back down. Get in your warm up and dynamic stretching and then push yourself through 3-4 rounds of this full body circuit. Pyramid Explanation: Complete the time given for each of the exercises in the set. For example: 10 seconds of high knees, 10 seconds of tuck jumps and 10 seconds of rest. Then move to the next exercise -> 20 seconds of jump rope (no rope needed), 20 seconds of ice skaters (look up speed skaters if you aren’t sure) and 20 seconds of rest, and so on. Once you get to the top you go down the other side. Start again from the beginning when repeating the circuit.