When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images Bored of planks and crunches? Why not try mixing things up with a killer ab ...

Master these classic core exercises (they're not the same!). Javier Zayas Photography/Getty Images If you’re a fan of core exercises, chances are both sit-ups and crunches are a staple of your workout ...

You could have your diet nailed and already be practicing a list of your favorite training exercises. But if you're simply going through the motions of core training, it's easy to make mistakes—and ...

Find out how many sit-ups after 55 signal a strong, healthy core and use this 60-second test to track your strength over time.