What Muscles Do Sit-Ups and Crunches Work?. Nike AU

Ab exercises like crunches and sit-ups target similar muscles. Learn more about abdominal anatomy and ways you can target different muscles.

Sit-Ups vs. Crunches

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The Quick Ab Workout Trainers Love. Nike AU

How to Do Crunches Properly. Nike AU

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What Muscles Do Sit-Ups and Crunches Work?. Nike SI

Sit-Ups vs. Crunches

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