How to do reverse crunch ab exercise

Reverse Crunch

Start by lying on the mat with legs in tabletop position (90-degree angle). Tying to use only your core muscles flex your flex lower abs to bring your hips a few inches off of the mat. Relax core to return to starting position. Make sure not to rock up and down, or to let your legs to take over the movement. If your abs aren't burning, you aren't doing it right!

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