Exercise Library
Illustration of a person doing Oblique Crunches

Oblique Crunches

Core

Muscles worked

obliquescore
Equipment
No equipment
Level
Beginner
How much to do
12–15 reps per set. Then do the same on the other side.

How to do it

  1. Lie on your back with your knees bent and dropped together to one side, shoulders flat on the floor.
  2. Place your hands lightly behind your head.
  3. Curl your shoulder blades off the floor, crunching through the side of your waist.
  4. Pause at the top and feel your obliques squeeze.
  5. Lower slowly with control.

How to breathe

Breathe in as you lower, out as you push. Never hold your breath at the hardest point.

Common mistakes

  • Pulling on your neck with your hands. Rest your fingers behind your ears and lead with your ribs, not your elbows.

  • Swinging into it. If momentum is doing the work, slow down until the muscle has to.

  • Stopping short of the ends. Half a rep trains half the muscle — go all the way to each end.

Frequently asked questions

Which muscles do Oblique Crunches work?
Oblique Crunches mainly work your obliques. They also engage your core.
What equipment do you need for Oblique Crunches?
None — Oblique Crunches are a bodyweight move you can do anywhere.
Are Oblique Crunches good for beginners?
Yes — Oblique Crunches are beginner-friendly. Start slow and keep your form clean.
How many reps of Oblique Crunches should you do?
12–15 reps per set. Then do the same on the other side.

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