It's time to put your core strength to the test.

The best way to do that? See how many rounds of this challenging floor circuit—in which every exercise targets the abs and obliques—you can make it through. Get through one round of back-to-back abs-wheel rollouts, legs raises, Supermans, and single-arm/single-leg planks without stopping, and you'll definitely be sweating. Make it through six, and you'll be on your way to a chiseled six-pack.


You'll do this workout as a circuit, meaning you'll complete each exercise consecutively without rest. Once you've finished all exercises, rest for 30 to 60 seconds. Repeat the entire circuit for 4 to 6 rounds.

Depending upon your ability, you may shorten or lengthen the rest period. You may also complete more or fewer rounds.

For a complete archive of our daily quick-hit routines, go to