Master the bicycle crunch from start to finish, learn the mistakes most guys make, and add variations that target every part of your core.

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This Move Targets Not 1 But 3 Abdominal Muscles This 5-Move Workout is a Serious Ab-Burner 15 Crunch-Free Moves for a Super Strong Core However, I’d never actually dissected individual exercises and ...

This article was featured in One Story to Read Today, a newsletter in which our editors recommend a single must-read from The Atlantic, Monday through Friday. Sign up for it here. A pair of exercise ...