Maybe you've noticed a Swiss ball, aka a physio ball, gathering dust in the corner of your neighborhood gym. A lot of guys look at the Swiss ball as a piece of equipment used just for stretching out before or after a workout. Some just use the Swiss ball for naps.

But after taking on this ab-defining, muscle-building circuit, you'll never look at a Swiss ball the same way again.

And while each exercise in this routine—wipers, v-ups, and plank circles—utilizes the Swiss ball differently, all three moves work to forge a strong, defined core. You'll want to be sure to add this workout to your beach-body program lineup. 

Directions

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 seconds. Repeat the entire circuit for 5 to 10 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 mensfitness.com/todaysworkout.