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Core

Crunch: how to do it with good form

The crunch is a simple ab exercise that trains the rectus abdominis with no equipment. It works well at the end of a session or at home on the floor.

How to do it

  1. 1

    Lie on your back, knees bent and feet flat. Hands lightly behind your head.

  2. 2

    Breathe out and curl your shoulders off the floor by drawing your ribs towards your hips.

  3. 3

    Pause at the top and squeeze your abs.

  4. 4

    Lower slowly until your shoulder blades touch the floor.

Common mistakes

  • Pulling on your neck with your hands.
  • Swinging up with momentum instead of curling.

Log it in Healti

The same exercise, with the animation and your sets, weights and records in one place.

More core exercises

Healti provides general information about nutrition and training. It is not medical advice.