CrossFit Ab Workout: Carve Yourself A Solid Core In 2024

Core strength is the powerhouse that fuels every movement, every lift, and every step we take in our daily lives. In CrossFit ab workout, where functional movements are performed at high intensity in an equipment-free environment, it’s crucial to have a solid core to optimize performance and prevent injuries. If weight loss is your goal, these exercises, along with a proper diet and, if necessary, supplements (such as fat burners), will help you achieve your core training goal.

This article will focus on the ultimate CrossFit-inspired ab workouts to help elevate your core training.

Whether you’re a seasoned CrossFit athlete or a fitness enthusiast seeking a challenging twist to your usual routine, most coaches will push your limits, test your endurance, and CrossFit carve your abs to build a strong body.

Let’s get ready to sweat, push boundaries, and —most importantly—  enjoy the process of growing stronger.

CrossFit Ab Workout To Try Now

These CrossFit-inspired core workouts will target the muscle group in your core, making you stronger and more stable while adding power to your other workouts.

Toes-To-Bar (T2B)

The Toes-To-Bar exercise is an advanced core-strengthening movement involving hanging from a pull-up bar and lifting the legs to touch the bar with the toes. It targets the abdominals, hip flexors, and shoulder stabilizers, emphasizing control and coordination. This exercise is popular in HIIT and CrossFit regimes.

These great lower ab workouts also work the upper abs and hip flexors.

Toes To Bar
Toes To Bar Guide. Photo: Aliaksandr Makatserchyk

How To Do

  1. Hang from a pull-up bar with your arms and legs fully extended.
  2. Keep your legs together and as straight as possible; use your abdominal muscles to lift your toes to the bar.
  3. Lower your legs back down to the starting position in a controlled manner. This is one rep. This can be a challenging exercise, even for seasoned Crossfitters, so start slowly until you build your core strength and perfect the movement.


  • Keep your core engaged and shoulders active throughout the movement to maintain control and stability.
  • Avoid excessive swinging; focus on using your abdominal muscles to lift your legs, making the movement controlled and deliberate.
  • Ensure you fully extend your arms and legs at the bottom of each repetition to get the full range of motion and maximize the exercise’s effectiveness.

Optimal Sets And Reps

Training StyleSetsReps
Strength Training3-46-10
Endurance Training2-315-20+
Power Training3-44-6

GHD Sit-Ups

GHD Sit-Ups are an intense core exercise performed on a Glute-Ham Developer (GHD) machine. They involve a full range of motion, moving from a horizontal to an upright position, engaging the core, hip flexors, and spinal erectors, significantly strengthening and stabilizing the midsection.

This workout targets the core, lower back, and hip flexors.

GHD Sit-Ups
GHD Sit-Ups Guide. Photo: Aliaksandr Makatserchyk

How To Do

  1. This exercise requires a Glute Ham Developer or GHD machine.
  2. Sit on the GHD machine with your feet secured under the footpads and hips just off the edge of the pad.
  3. Lean backward, extending your body until it’s parallel to the floor, with only your feet and knees bent over the footpad.
  4. Swiftly contract your core and explode forward, bringing your body back up to perform the sit-ups.


  • Gradually increase the range of motion to avoid hyperextension of the spine.
  • Engage your core throughout to support your back.
  • Avoid jerky motions; use a smooth, controlled ascent and descent.

Optimal Sets And Reps

Training StyleSetsReps
Strength Training3-410-12
Endurance Training2-315-20+
Power Training3-46-8

Kettlebell Swings

Kettlebell Swings are a dynamic, full-body exercise involving swinging a kettlebell between the legs and up to chest height. This movement engages the glutes, hamstrings, core, and shoulders, improving strength, endurance, and coordination, and is often a staple in functional fitness and strength training programs.

This workout also targets your lower back, glutes, and hamstrings and engages your core.

Kettlebell Swings
Kettlebell Swings Guide. Photo: Aliaksandr Makatserchyk

How To Do

  1. Stand with your feet hip-width apart, knees slightly bent, holding a kettlebell in front of you with both hands.
  2. Push your hips back and swing the kettlebell back between your legs.
  3. Quickly push your hips forward, straighten your legs, and swing the kettlebell up in front of you up to shoulder height.
  4. Allow the kettlebell to fall back down, swinging it back between your legs. This is one rep. Aim for two to three sets of eight to twenty reps, depending upon the weight of the kettlebell and your conditioning.


  • Initiate the swing with a hip hinge motion, pushing your hips back, not squatting down.
  • Power the movement by explosively thrusting your hips forward, using your glutes and hamstrings, not your arms.
  • Keep your back straight and core engaged throughout the exercise to protect your spine.

Optimal Sets And Reps

Training StyleSetsReps
Strength Training4-510-12
Endurance Training2-320-30+
Power Training4-58-10


V-Ups are a challenging abdominal exercise where one simultaneously lifts their legs and upper body off the ground, forming a ‘V’ shape. This exercise targets the entire core, including the rectus abdominis and obliques, and requires balance and body control, making it effective for core strengthening and stability.

It works out your rectus abdominis and the obligues.

V-Ups Guide. Photo: Aliaksandr Makatserchyk

How To Do

  1. Start by lying flat on your back with your arms and legs extended.
  2. Simultaneously lift your upper body and legs off the ground, reaching your hands towards your feet, forming a V shape with your body. Hold briefly.
  3. Lower your body back down to the starting position in a controlled manner.


  • Extend your legs and arms fully to maximize core engagement and maintain the proper ‘V’ shape.
  • Use controlled, deliberate movements to raise and lower your body, avoiding momentum to do the work.
  • Focus on using your abdominal muscles to lift your body, ensuring the core is doing most of the work, not your neck or shoulders.

Optimal Sets And Reps

Training StyleSetsReps
Strength Training3-48-10
Endurance Training2-315-20+
Power Training3-46-8

Russian Twist

The Russian Twist is a seated core exercise involving torso rotations to each side, often with a weight for added resistance. It targets the obliques, rectus abdominis, and transverse abdominis, enhancing core strength and rotational movement, making it a popular choice in abdominal and functional fitness routines.

This exercise targets the obliques, enhances shoulder stability, and stabilizes the entire core, building a strong, balanced midsection.

Russian Twist
Russian Twist Guide. Photo: Aliaksandr Makatserchyk

How To Do

  1. Sit on the ground with your knees bent, pull your abs to your spine, and lean back a few inches while keeping your back straight.
  2. Hold your hands together at your chest, and raise your feet off the floor.
  3. Find your balance, twisting your torso to the right, then to the left to complete one rep.
  4. Continue this movement; remember to control your breath.
  5. If you want to add intensity, you can hold a weight or a medicine ball in your hands. 


  • Keep your abs engaged throughout the exercise to support your spine and increase effectiveness.
  • Twist your torso fully to each side to engage the obliques and maximize the range of motion.
  • For added intensity, lift your feet slightly off the ground, but ensure it doesn’t compromise your form.

Optimal Sets And Reps

Training StyleSetsReps
Strength Training3-410-12 per side
Hypertrophy3-412-15 per side
Endurance Training2-320-25+ per side
Power Training3-48-10 per side

Plank Holds

Plank Holds is a fundamental core exercise where one maintains a straight, stationary position on elbows and toes, strengthening the abs, back, and shoulders. This workout targets the entire core region, including the glutes and lower back.

Plank Holds
Plank Holds Guide. Photo: Aliaksandr Makatserchyk

How To Do

  1. Start in the push-up position, bend your elbows, and rest your weight on your forearms instead of on your hands.
  2. Your body should form a straight line from your shoulders to your ankles.
  3. Hold this position, keeping your core tight and your hips lifted. Planks are timed, not done in reps.


  • Keep your body in a straight line from head to heels, avoiding sagging hips or picking up.
  • Actively engage your core and squeeze your glutes to maintain stability and increase effectiveness.
  • Keep your elbows under your shoulders, and wrists in line with elbows to reduce strain.

Optimal Sets And Reps

Training StyleSetsReps
Strength Training3-430-45 seconds
Hypertrophy3-445-60 seconds
Endurance Training2-360-90+ seconds
Power Training3-420-30 seconds

Hollow Rocks

Hollow Rocks are a core-strengthening exercise where one rocks back and forth while maintaining a ‘hollow’ body position, engaging the abs, hip flexors, and lower back. This workout targets the transverse abdominus and internal and external obliques.

Hollow Rocks
Hollow Rocks Guide. Photo: Aliaksandr Makatserchyk

How To Do

  1. Lie down on your back and extend your arms and legs.
  2. Engage your core and lift your arms, head, shoulders, and legs off the floor, maintaining the shape of a banana or a rock.
  3. Rock your body back and forth while keeping your body tight in this position.


  • Engage your abs and squeeze your legs together, creating tension throughout the body for stability.
  • Ensure your lower back remains in contact with the floor to protect your spine.
  • Use a controlled, smooth rocking motion from shoulders to hips, avoiding jerky movements.

Optimal Sets And Reps

Training StyleSetsReps
Strength Training3-420-30 seconds
Hypertrophy3-430-45 seconds
Endurance Training2-345-60+ seconds
Power Training3-415-20 seconds

Remember, using the proper form is crucial to maximize effectiveness and prevent injuries. Always start with a weight and difficulty level appropriate to your fitness level and increase gradually.

Benefits Of Ab CrossFit Workouts

Let’s explore some benefits these intense, high-energy workouts can provide.

Benefits Of Ab CrossFit Workouts
The Power originates from strong abdominal muscles. Photo: bodysport/Freepik

Enhanced Core Strength

At its core, CrossFit abs exercises revolve around functional movements, many of which originate from strong abdominal muscles.

Improved Posture And Stability

A strong core leads to better posture and balance, both crucial for daily activities and athletic performance — stabilizing your body during dynamic movements and making you less prone to injuries.

Increased Metabolic Rate

Core CrossFit workouts’ high-intensity nature can significantly boost your metabolism. This helps burn calories during the workout and can increase your aerobic capacity.[1]

Better Athletic Performance

A strong core is paramount to efficient movement and power, whether you’re into running, swimming, cycling, or any other sport. 

Enhanced Body Coordination

Many CrossFit workouts require complex, multi-joint movements that force your body to work as a unit. This can improve body awareness and coordination, essential for sports and daily life.

Versatility And Variety

Say goodbye to endless sit-ups! One of the great things about CrossFit workouts for abs and core is the sheer variety of exercises, keeping things fresh, exciting, and challenging.

Things To Consider

Things To Consider
You should stay hydrated and eat a balanced from intense workouts. Photo: wavebreakmedia_micro/Freepik

Adding CrossFit ab exercises to your fitness routine can provide many benefits, from a stronger, more defined core to building muscle. However, remember a few key things to ensure you reap these benefits safely and effectively.

Master The Form

Ensure you’ve mastered the correct form before adding intensity or speed to any workout. This is especially crucial for CrossFit workouts, which often involve complex, multi-joint movements. 

Warm-Up And Cool-Down

CrossFit workouts are intense! It’s essential to prepare your body with a good warm-up beforehand and to allow it to recover with a cool-down afterward. This can help increase your performance during the workout and reduce the risk of injury and muscle soreness.

Listen To Your Body

While it’s normal to experience a degree of discomfort during a challenging workout, a sharp pain is a sign that something’s wrong. If an exercise causes pain, stop immediately. 

Stay Hydrated And Eat Well

Your body needs fuel to perform at its best and recover from intense workouts. You should drink[2] 400-600 mL of water before working out and 2-16 mL every 15 minutes during workouts to ensure adequate hydration. Make sure you’re staying hydrated and eating a balanced, nutrient-rich diet. 

Rest And Recover

Overtraining can lead to injuries and hinder your progress. Your muscles need time to repair and grow, so ensure you’re giving your body plenty of rest. This means not training daily and giving your body a day’s rest in between workouts. Additionally, get enough sleep, which is when most muscle recovery and growth occurs.

Remember, your fitness journey is your own. What matters most is that you’re moving, challenging yourself, and enjoying the process.


Incorporating CrossFit-inspired ab workouts into your fitness routine can be a game-changer. It offers a fresh, challenging approach to core strengthening, and the benefits extend far beyond a toned midsection. You’ll experience improved posture, better athletic performance, increased metabolic rate, and a heightened sense of body coordination.

However, it’s crucial to remember that any workout is just one piece of the puzzle, no matter how effective. Balanced nutrition,[3] adequate rest, staying hydrated, and listening to your body’s signals are all equally important in reaching your fitness goals.

Take the CrossFit ab workout as a way to mix up your routine, challenge yourself, and make fitness fun. Start at your own pace, and gradually increase intensity as your strength and endurance grow. You may find these workouts challenging initially, but over time, you’ll notice significant improvements in your core strength, stability, and overall performance.

As they say in the CrossFit world, Your workout is our warm-up! Let’s get stronger together!

Frequently Asked Questions

Does CrossFit help with abs?

Absolutely! CrossFit workouts often involve compound movements and high-intensity exercises that engage your entire core.

Can I lose belly fat with CrossFit?

Yes, you can. CrossFit exercises for belly fat are typically high in intensity, effectively burning a significant amount of calories, and are excellent for fat reduction, especially around the abdomen.

Is CrossFit better than cardio?

Traditional cardio exercises like running or cycling primarily improve your cardiovascular endurance. On the other hand, CrossFit workouts combine elements of cardio, strength training, and flexibility, providing a more rounded fitness regimen.

Is CrossFit good long-term?

Yes, CrossFit can be an excellent long-term fitness strategy.


  1. Mangine, G.T., Stratton, M.T., Almeda, C.G., Roberts, M.D., Esmat, T.A., VanDusseldorp, T.A. and Feito, Y. (2020). Physiological differences between advanced CrossFit athletes, recreational CrossFit participants, and physically-active adults. PLOS ONE, [online] 15(4), pp.e0223548–e0223548. doi:
  2. ISSN exercise & sports nutrition review update: research & recommendations. (2018). Journal of the International Society of Sports Nutrition. [online] doi:
  3. Cena, H. and Calder, P.C. (2020). Defining a Healthy Diet: Evidence for the Role of Contemporary Dietary Patterns in Health and Disease. Nutrients, [online] 12(2), pp.334–334. doi: