Which muscles does the reverse crunch work?

The reverse crunch mainly works your abs. It also involves your hip flexors.

How many sets and reps should I do?

A common starting point is 2 to 4 sets of 8 to 12 controlled reps, with a weight that leaves a couple of reps in reserve. Adjust it to your goal and experience, and stop if something hurts.

How do I track the reverse crunch in SweatByte?

Add it to a routine or a workout. Log the reps for each set. SweatByte shows your last session's numbers on every set, so you know what to beat.

Reverse Crunch: how to do it and muscles worked

The reverse crunch mainly works your abs, with help from your hip flexors. You need bodyweight (no equipment).

Muscles worked

Main

Helping

Hip flexors

How to do the reverse crunch

1
Lie on your back with your arms flat by your sides, hips and knees bent at 90 degrees so your shins are parallel to the floor.
2
Curl your knees toward your chest and lift your hips a few centimetres off the floor by tightening your lower abs.
3
Lower your hips slowly back to the floor without swinging or using momentum. Breathe out as you curl and in as you lower.

Form tip: Keep the movement small and controlled; swinging your legs takes the work away from your abs.

Common questions

Which muscles does the reverse crunch work?: The reverse crunch mainly works your abs. It also involves your hip flexors.
What equipment do I need for the reverse crunch?: You need bodyweight (no equipment).
How many sets and reps should I do?: A common starting point is 2 to 4 sets of 8 to 12 controlled reps, with a weight that leaves a couple of reps in reserve. Adjust it to your goal and experience, and stop if something hurts.
How do I track the reverse crunch in SweatByte?: Add it to a routine or a workout. Log the reps for each set. SweatByte shows your last session's numbers on every set, so you know what to beat.

More abs exercises

General information, not medical advice. Learn the movement with light weight first, and see a doctor or physiotherapist if you have an injury or pain. More guides in Learn.