Not Your Usual Tabata.
8 Rounds of 20 seconds on, 10 seconds off. Stick with the same exercise for all 8 rounds. During the rest, do an isometric hold. This one gets tough pretty quickly. Stick with it and push through the pain!
After 8 rounds of the first exercise, rest 1 min and move to the next.
1. Squats - Hold a squat during the 10 seconds of rest
2. Situps - Hold the hollow position during the rest
3. Pushups - Hold the top of a pushup during the rest