Looking for a quick ab workout to fire up your core? This seven-minute intense ab challenge targets your lower abs with no equipment. To find out for myself, I unrolled my yoga mat and gave it a go ...

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You don't need to spend hours breaking a sweat to get into shape, and you certainly don't need to do sit-ups to improve your core strength. A simple 15-minute Pilates workout will do. It's an ...

Let’s be honest: you’ve probably done thousands of sit-ups thinking they’d give you a stronger core. We all have. But here’s the uncomfortable truth—those endless crunches aren’t doing much for you.

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images When you don’t have hours each week to train, you need to be smart in your ...

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