How to do a Tuck Crunch
Reviewed by JP Michelsen, CPT, B.A. Kinesiology
About Tuck Crunch
Target muscles worked
Instructions for Proper Form
Tuck Crunch is a bodyweight core exercise that primarily targets the abdominals. This exercise involves lying on your back, tucking your knees towards your chest, and then extending them back out while performing a standard crunch movement. This compound movement enhances core muscle activation and coordination, making it a great exercise for strengthening the entire core.
- Sit upright on the floor with your knees at a 90 degree angle and your feet flat on the floor.
- Slowly lean back until your abdomen muscles are engaged and your back is about 45 degrees from the floor. Raise your heels slightly off the floor. While engaging your abdomen, extend your legs forward without letting them touch the floor.
- Once in full extension, slowly flex your knees toward your chest while also bringing your chest slightly forward. Keep tension in your abdomen as you lower your upper body back to 45 degrees from the floor.
Sets & Reps Calculator
Average Tuck Crunch standards by male, female, gender, weight, age and height
Use this calculator to see Fitbod's possible first recommendations for you. This would be your starting line, based on more than 4.5 billion logged sets from 1.1 million users.
- beginner3sets9reps1 Set Max10reps
- intermediate4sets9reps11reps
- advanced4sets10reps12reps
Enter your stats to calculate your Sets & Reps
Alternative Exercises to Tuck Crunch
1. Crunches
94 mSCORESWAPPED 904 TIMESCrunches are one of the most common exercises out there. It’s an easy to perform, bodyweight exercise that targets your abdominals. Crunches are very similar to Sit Ups, however, instead of raising your upper body all the way into a near sitting position, you only raise your shoulder blades off the ground. This is a great exercise for beginners looking to build core strength.
- Beginner
- Abs
2. Leg Raise
96.5 mSCORESWAPPED 502 TIMESLeg Raise is a simple bodyweight core exercise that involves laying on the ground and suspending your legs in the air. While your core does play a significant role in raising your legs, the real benefit comes from controlling their descent back to the floor.
- Beginner
- Abs
3. Ab Crunch Machine
96.1 mSCORESWAPPED 486 TIMESAb Crunch Machine is a variation of Crunches performed with a machine. Unlike standard Crunches, the use of a machine gives you more control over your resistance. In addition, the machine will restrict your range of motion allowing you to focus more on exertion than stabilizing the movement.
- Intermediate
- Abs
- Ab Crunch Machine
4. Bicycle Crunch
91.8 mSCORESWAPPED 460 TIMESBicycle Crunch is a more difficult version of a standard crunch. Instead of raising your torso off the ground for each rep, you keep your torso off the ground, and your core engaged. By cycling your legs, you add more instability to the movement, which leads to better core activation.
- Beginner
- Abs
5. Plank
92.8 mSCORESWAPPED 408 TIMESPlanks are one of the most common core exercises out there. This is a bodyweight exercise that is performed for time rather than reps. Planks don’t require any movement, instead they force you to place yourself in a position that requires you to engage your core, and maintain that muscle activation for the duration of the exercise. This is a great way to help build strength and stability in a way that will translate to a variety of other exercises, and your daily life.
- Beginner
- Abs
6. Dead Bug
92.4 mSCORESWAPPED 388 TIMESDead Bugs are a bodyweight core exercise that requires you to lay on your back, and alternate extending your arms and legs out away from your body. The position you’re in on the ground keeps your core engaged, while extending your arms and legs away from you forces you to further recruit your core to continue to stabilize yourself.
- Beginner
- Abs
7. Russian Twist
96.2 mSCORESWAPPED 359 TIMESRussian Twist is one of the more common core exercises. This exercise targets multiple muscles in your core, but the reason for including this exercise is usually to target your obliques. By raising your feet off the ground, engaging your core, and twisting to each side, you can better target this specific muscle in your core.
- Beginner
- Abs
8. Elbow to Knee Crunch
70.4 mSCORESWAPPED 317 TIMESElbow to Knee Crunch is a bodyweight core exercise that primarily targets the abdominals and obliques. By bringing your opposite elbow to your knee during a crunch, you add a rotational element to the movement, which helps engage your obliques for better core development. This variation offers more intensity and muscle activation compared to a standard crunch.
- Beginner
- Abs
9. Scissor Kick
94.2 mSCORESWAPPED 310 TIMESScissor Kicks are a bodyweight, core exercise that involve raising your feet off the ground, and kicking your legs up and down. By raising your legs off the ground, you’re already working your core. By continually alternating which leg is raised, you’re constantly forced to keep your core engaged for stability as well as to keep each leg raised.
- Beginner
- Abs
10. Oblique Crunch
86.7 mSCORESWAPPED 306 TIMESOblique Crunch is a variation on the more standard Crunch. Similar to Crunches, this is a bodyweight core exercise. By reaching across your torso, you can help isolate your obliques. This is a great exercise for anyone looking to specifically target their obliques.
- Beginner
- Abs