Reverse Crunch

A beginner isolation strength exercise that works the abs, needing no equipment.

Reverse Crunch — Starting position Starting position
Reverse Crunch — End position End position
Difficulty Beginner
Type Strength
Equipment No Equipment
Primary Muscle Abs
AI Rep Counting Log manually

How to Do Reverse Crunch

  1. 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.
  2. 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.
  3. 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.
  4. Hold the contraction for a second and move your legs back to the starting position while exhaling.
  5. Repeat for the recommended amount of repetitions.

Muscles Worked

Front

Primary

Where Reverse Crunch does most of its work.

Alternatives to Reverse Crunch

10 movements that train the same primary muscle, closest substitutes first — same kind of training, then variations of the movement itself, then a similar difficulty.

  1. 1 Cable Reverse Crunch

    Cable Reverse Crunch

    A beginner isolation strength exercise that works the abs, using a cable machine.

    beginner Cable Machine
  2. 2 Suspended Reverse Crunch

    Suspended Reverse Crunch

    A beginner isolation strength exercise that works the abs.

    beginner Not specified
  3. 3 Decline Reverse Crunch

    Decline Reverse Crunch

    A beginner compound strength exercise that works the abs, needing no equipment.

    beginner No Equipment
  4. 4 Bosu Ball Cable Crunch With Side Bends

    Bosu Ball Cable Crunch With Side Bends

    A beginner isolation strength exercise that works the abs, using a cable machine.

    beginner Cable Machine
  5. 5 Cable Crunch

    Cable Crunch

    A beginner isolation strength exercise that works the abs, using a cable machine.

    beginner Cable Machine
  6. 6 Cable Seated Crunch

    Cable Seated Crunch

    A beginner isolation strength exercise that works the abs, using a cable machine.

    beginner Cable Machine
  7. 7 Exercise Ball Crunch

    Exercise Ball Crunch

    A beginner isolation strength exercise that works the abs, using an exercise ball.

    beginner Exercise Ball
  8. 8 Kneeling Cable Crunch With Alternating Oblique Twists

    Kneeling Cable Crunch With Alternating Oblique Twists

    A beginner isolation strength exercise that works the abs, using a cable machine.

    beginner Cable Machine
  9. 9 Rope Crunch

    Rope Crunch

    A beginner isolation strength exercise that works the abs, using a cable machine.

    beginner Cable Machine
  10. 10 Standing Rope Crunch

    Standing Rope Crunch

    A beginner isolation strength exercise that works the abs, using a cable machine.

    beginner Cable Machine

Frequently Asked Questions

What muscles do reverse crunch work?

Reverse Crunch primarily works the abs.

What equipment do I need for reverse crunch?

None. Reverse Crunch is a bodyweight movement you can do anywhere you have floor space.

Reverse Crunch: is it suitable for beginners?

Yes. Reverse Crunch is rated beginner. Movements you can learn in a session, with a low skill floor and a forgiving failure mode.

What can I do instead of reverse crunch?

Cable Reverse Crunch, Suspended Reverse Crunch, Decline Reverse Crunch train the same primary muscles and are listed with 7 more alternatives above.

Can Fitnit count my reverse crunch reps automatically?

Not automatically yet. Fitnit's AI rep counting covers push-ups, squats, dumbbell curls, crunches and pull-ups today; reverse crunch can be logged manually in the app, and tracked movements are added over time.

Photographs and step-by-step instructions from free-exercise-db, a public-domain exercise dataset. Muscle mapping and alternatives by Fitnit.

Track Your Reverse Crunch with AI

Fitnit automatically tracks push-ups, crunches, squats, pull-ups, and curls with advanced body tracking technology — and you can manually input any other workout too. Start free — Pro is $8.99/month.