Incorporate into leg day--Stability Ball Squat Pulse Jump off the AMT Machine. Squeeze a small stability ball between your thighs. Keeping your toes pointing forward, pulse up and down in a squat position 25 times.
Excited to try this tomorrow. I love the "base pace/tempo pace/SPRINT pace" idea instead of the HIIT guides. This allows you to set your own sprint workout without feeling like complete death, but knowing if you're really working or not.
This fast-paced cardio circuit is inspired by Insanity's Pure Cardio video. Set an interval timer or a timer app for 15 rounds of intervals. Do 30 seconds of each exercise and rest after every 4 moves. Repeat for a cardio routine.