Here is a quick ab blaster you can do in only 20 minutes with no equipment.

It is 3 separate Tabata circuits, done with 1 minute of rest between each.  If you don’t know what a Tabata is by now then you haven’t been coming to class enough!  A tabata is a 4 Minute High-Intensity Interval Training method that consists of 20 seconds of hard exercise followed by 10 seconds of rest. This is repeated for a total of 8 rounds, totalling 4 minutes.  You can use a watch or phone app (there are many free apps if you search for “Tabata” or “Interval Timer”.

Warm-up 5 Minutes

Jumping jacks, high knees, butt kicks, leg swings, etc…

Tabata 1:

Alternating rounds of Flutter Kicks and Coffins (hands behind head).

Rest 1 minute, then right into:

Tabata 2:

Alternating rounds of Cross-Body Mountain Climbers and Plank “Knee-to-Elbow” alternating sides

Rest 1 minute, then right into:

Tabata 3:

Alternating rounds of Sit-up Twists and Russian Twists (you can put a weight in your hands or not).

You’re done!