Get a Stronger Core in One Month With This 30-Day Abs Challenge

Even just a few minutes a day of core exercises can help you build a stronger midsection during the 30-Day Abs Challenge.

Healthy habits are built one day at a time. Our monthly food and fitness challenges can help you stay on track all year long.

Wouldn't it be great to get stronger abs in 30 days? The LIVESTRONG.com team created a challenge to help you do just that. You'll not only feel amazing and stand with better posture, but you'll strengthen your core, which lessens your chance of back pain (among many other impressive benefits).

Best of all, you can do it in a few minutes each day, with no equipment. All it takes is a handful of simple exercises and workout videos you can follow pretty much anywhere.

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How the 30-Day Abs Challenge Works

Once a year, we host the LIVESTRONG.com 30-Day Abs Challenge in our Challenge Facebook Group — but you can start on your own at any time! (We started our most recent session on Tuesday, June 1, 2021.)

Most days, you'll do four different ab exercises — the plank, Boat pose, scissor twist and single-leg lift — as detailed in the challenge calendar below. As the month progresses, you'll add more reps or hold the poses for longer. A few days during the month, you'll incorporate one of three ab workout videos, hosted by yoga instructor Elise Joan.

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To stay on track, print out or save the 30-day calendar below.

Image Credit: LIVESTRONG.com Creative


Get a printer-friendly version of the challenge calendar here!

How to Join the 30-Day Abs Challenge

Step 1: Print and/or Save Your Calendar

Keep your calendar somewhere you can see it so you never forget what day you're on. Cross off the days as you complete them so you always know what to do the next day.

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Step 2: Join Our Challenge Facebook Group

Image Credit: LIVESTRONG.com Creative

Our community of more than 48,000 members is here to support and motivate you through this challenge. Tell the group how the day's exercises went, post photos or videos of your ab workouts or share your favorite meme or motivational quote.

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Step 3: Start With the Basics

Your four main ab exercises for the challenge are:

  • Plank
  • Boat pose
  • Scissor twist
  • Single-leg lift

Each day these moves are on the calendar, you'll do the designated number of reps or hold for the listed amount of time. For example, on Day 1, you'll do:

  • Plank: 15 seconds
  • Boat pose: 15 seconds
  • Scissor twist: 20 reps
  • Single-leg lift: 10 reps

Tip

For the scissor twists and single-leg lifts, each side/leg counts as one rep. But you can up the challenge by doing double the reps.

Watch the video above and keep scrolling for step-by-step instructions for each exercise.

Move 1: Plank

JW Player placeholder image
Activity Body-Weight Workout
Region Core
  1. Start on all fours with your hands directly under your shoulders.
  2. Straighten your legs so you're supporting your weight on your hands and feet. Your body should be in one straight line from head to hips to heels.
  3. Engage your abs, quads and glutes to help you maintain proper form as you hold.

Tip

If you need to modify, drop down to your knees, still making sure that your body is in alignment from your head to hips to knees.

Move 2: Boat Pose

JW Player placeholder image
Activity Body-Weight Workout
Region Core
  1. Begin sitting with your knees bent and feet flat on the floor.
  2. With your spine long and chest open, lift your feet off the floor and extend your legs toward the ceiling. The goal is to get your legs to a 45-degree angle from the floor.
  3. Raise your arms straight out so they're parallel to the floor.
  4. Draw your bellybutton to your spine and keep your neck relaxed as you hold this position.

Tip

For a modification, bend your knees so your shins are parallel to the floor, or keep your toes on the ground.

Move 3: Scissor Twist

JW Player placeholder image
Activity Body-Weight Workout
Region Core
  1. Lie on your back with your legs extended, then raise your head, neck and shoulders off the ground to engage your abs.
  2. Lift your legs so they're perpendicular to the ground.
  3. With your arms together and extending toward your feet, twist to the right side as you lower your left leg toward the ground. Your leg should hover above the ground, but only go as far as you can while keeping your lower back on the floor.
  4. Switch your arms and legs so that you're twisting to the left side and lowering your right leg toward the ground.
  5. Continue to twist back and forth without straining your neck.

Tip

Make the move a bit easier by bending your knees as you draw your leg in toward your chest. Catch the outside of your thigh for even more support.

Move 4: Single-Leg Lift

JW Player placeholder image
Activity Body-Weight Workout
Region Core
  1. Lie on your back with your legs extended and your hands underneath your tailbone for support.
  2. Lift both legs a few inches off the floor.
  3. Anchoring your lower back into the floor, raise your right leg, toe pointing straight up to the ceiling.
  4. As you lower your right leg, lift your left leg.
  5. Continue alternating legs.

Tip

To modify, start with both legs pointing up, then lower one at a time toward the ground.

Step 4: Add in These Workout Videos

1. The 10 Best Ab Exercises: days 3, 10, 17 and 24

You'll perform each of the 10 Pilates-inspired exercises for 1 minute to build your core endurance and work your abs from every angle.

2. Quick HIIT Workout for Flat Abs:​ ​days 6 and 13

Start by doing each of the 10 moves for 30 seconds and resting 30 seconds between exercises. Repeat the circuit 2 to 3 times, depending on how you feel.

3. 10-Minute Plyo HIIT Workout:​ ​days 20 and 27

Sweat it out for 30 to 45 seconds and rest for 15 to 30 between moves. Beginners can try plenty of modifications for a lower-impact routine.

Step 5: Enjoy Your Rest Days

Every seventh day (days 7, 14, 21 and 28), you'll have a rest day! Make sure to take advantage of the days off by doing something active but low-intensity like walking, hiking, yoga or swimming.

Step 6: Celebrate Your Success

Making it to the end of the 30-Day Abs Challenge is an accomplishment worth celebrating! We think it deserves some not-so-humble bragging in our Challenge Facebook Group.

Then, keep your momentum going with a new challenge next month, like:


You can do any of our challenges on your own whenever you want, or you can visit our Challenges page to see what we have planned for the full year.

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