Holy Abs! 11 Workout Videos That Show How Jillian Michaels Carves Her Core

These moves will test your balance and your core strength. Jillian recommends doing each move for 30 seconds and three rounds total.

This core challenge will strenthen your middle and also get your heart rate up.

Jillian mixes up traditional planks with these hard-as-hell variations.

Get creative in the gym with this core crusher. Jillian recommends doing each move for 30 seconds for four rounds total.

Test how long you can hold a high plank and side plank with this plank challenge.

Mix up ab day at the gym with these variations using basic gym equipment.

Don't have disc sliders? No problem! Get on a hard floor and grab two towels to put under your feet.

Jillian gets creative with two towels to use as sliders. These variations on planks and pikes will definitely tone your tummy.

Jillian recommended doing each move for 30 seconds in a circuit style for four rounds.

Grab a pair of disc sliders (or two towels) and work your abs and booty with variations on pikes and mountain climbers. She suggests doing each move for 30 seconds and doing each move in a row and repeat for four rounds.

This circuit isn't for a beginner. Jillian recommends doing each move for 30 seconds and doing it all four times through.