I am thinking of beginning a HITT workout and have never heard of Tabata before. I will research into it. Sounds like fun.
It's just doing each exercise for 20 sec and rest for 10 sec... Do at least 5-8 exercises in each round.
When I first started Tabata I only did 4 exercises (Push Up, Sumo Squat, Plank & Blurpee) for 5 rounds for a total of 10 minutes.
Now, I do 3 rounds of 8 exercises and none of the exercise are the same but I rest up to a minute after each round.