Core Workout: 15-Minutes to Steel Cut Abs

abs workout 15 min

Swimsuit season is in full swing, so you’ve probably added a few abs exercises into your workout regimen. But core exercises are important for more than just looking good in your bikini – a strong core means better balance and stability and less back pain and bad posture.

This core workout is a scorcher, so start slow if you have been neglecting your midsection. Even if you’re more of a one-piece person, working on your core is actually important to your health. Make it a fitness goal to work up to this 15-minute series.

There are countless abs workouts and core exercises out there, but I turned to someone who has changed thousands of lives (and abs) with her methods and e-books. Kayla Itsines is the trainer behind The Bikini Body Training Company and has a huge following of people that swear by her workouts. She shows us (in the above photos and the below infographic) how to get it done.

Kayla’s Killer Abs Workout:

Do each of these circuits as many times as you can in 7-minutes. After you’ve completed the two circuits in the 14-minutes, stretch out for the last minute. Once you’ve worked up to a stronger core, Kayla suggests doing each of the circuits twice, and making this a 28-minute core workout.

Circuit One + Circuit Two: Do each circuit as many times as you can in 7 minutes (total = 14 minutes)

Ab Core Workout


Ab Bikes: 40 reps (20 each side)
Weight bent leg jackknifes: 15 reps
Raised leg sit ups with twist: 30 reps (15 each side)
Sit Ups: 20 reps


Mountain Climbers: 40 reps (20 each side)
Leg Raises on Bench: 30 reps
Toe Touches: 20 reps
Plank: 30 seconds


Comment Here
Notify of
Inline Feedbacks
View all comments
Would love your thoughts, please comment.x