Crunches

How to do it

1. Lie on the back with the knees bent, feet flat on the floor, and fingertips lightly touching the temples or crossed over the chest.
2. Engage the core and press the lower back gently into the floor before starting the movement.
3. Curl the shoulder blades up off the floor by contracting the abs, keeping the chin off the chest.
4. Pause briefly at the top, squeezing the core muscles.
5. Lower back down over a 2 count with control, stopping just before the shoulder blades touch the floor.
6. Keep the neck relaxed instead of pulling on the head with the hands to generate momentum.

Muscles worked

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