Oblique Crunch: Muscles Worked & Technique

Oblique crunch exercise technique

Muscles Worked in Oblique Crunches

Muscles worked in oblique crunches

Primary muscles worked:

Secondary muscles worked:

How to Do Oblique Crunches

  • Lie on your back, with your hands on the side of your head and your knees bent to about 90 degrees.
  • Contract your abs and lift your upper body diagonally, so that the elbow and shoulder on one side of your body move towards the knee on your other side.
  • Bend as far as possible and then return to the starting position.


The oblique crunch is a classic bodyweight exercise for strengthening your internal and external obliques. The exercise can be varied by lying on a soft training ball (i.e. pilates/bosu ball), and you can increase the load by holding a weight against your chest.

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