This is a simple but powerful exercise to strengthen the abs and the core, the muscles that support the spine.

Muscle group: Abdominal


1. Get down on a mat on your hands and knees.

2. Keep your back straight and your hips and pelvis in a neutral position.

3. Draw your abs in, crunching your abs while keeping your back still. Hold for a moment and then release returning to the starting position.


This exercise requires very little movement just the flexing, or drawing in, of your abdominal muscles.

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