Enter any gym, and you’ll see the same core workout: crunches, situps, ab machines, and endless twisting exercises. The logic seems obvious—if you want stronger abs, more visible abs, you train them ...
For decades, the simple sit-up reigned supreme, but personal trainers know a secret: the primary role of your core is not to flex your spine (like a crunch), but to resist unwanted movement to protect ...
Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. March 22, 2022 Add as ...
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Add Yahoo as a preferred source to see more of our stories on Google. Enter any gym, and you’ll see the same core workout: crunches, situps, ab machines, and endless twisting exercises. The logic ...
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