Exercise
Reverse Crunch
Also known as: lying reverse crunch, lower ab reverse crunch, knee to chest crunch


Reverse Crunch is a isolation exercise for the abdominals. Main target: lower abs. No equipment needed — just your bodyweight.
How to do it
- Lie down on the floor with your legs fully extended and arms to the side of your torso with the palms on the floor. Your arms should be stationary for the entire exercise.
- Move your legs up so that your thighs are perpendicular to the floor and feet are together and parallel to the floor. This is the starting position.
- While inhaling, move your legs towards the torso as you roll your pelvis backwards and you raise your hips off the floor. At the end of this movement your knees will be touching your chest.
- Hold the contraction for a second and move your legs back to the starting position while exhaling.
- Repeat for the recommended amount of repetitions.
Common mistakes
- Swinging the legs instead of lifting the pelvis.
Tips
- Curl your pelvis up toward your ribs and lower slowly — no momentum.
Used in these programs
3-Day Gym Workout Plan for Women
Three sessions a week with a glute and leg focus plus an upper-body day — for strength and a toned look.
Beginner · 3 times a week · GymBeginner Home Ab Workout15 minutes on a mat: crunches, reverse crunches, planks and dead bugs — the whole core and obliques with no equipment.
Beginner · 3 times a week · HomeSimilar exercises

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Seated Leg Tucks
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Dead Bug
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Alternatives with other equipment

Cable Reverse Crunch
Cable
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Knee/Hip Raise On Parallel Bars
Other
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Smith Machine Hip Raise
Smith machine
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Exercise Ball Pull-In
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Ab Crunch Machine
Machine
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Barbell Side Bend
Barbell
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