Ever been amazed by the athletic physique of Marvel heroes and heroines, like the flawless Scarlett Johansson? It's common to ...

Crunches are another enduring bodyweight exercise. Here's what the exercise is, which muscles it works and why crunches are so good for overall health. Crunches are a popular abdominal ...

How many crunches can you do — and how does that stack up with others your age? That was the question posed by "FOX & Friends" on Monday, when fitness expert Joseph David challenged hosts Brian ...

Looking for an effective way to strengthen your core without resorting to traditional crunches? This 10-minute barre workout ...

This week: butterfly crunches. A great example is the butterfly crunches, which turn the ab-burning dial up on the traditional exercise to keep challenging you and your core. You’re now ...

Could you get back on your feet? If the answer is no, it’s time to start adding crunches to your workout routine to give your core the boost it needs. “Core work allows you the ability to pick ...

The main difference between sit-ups and crunches is the range of motion involved in each exercise. Sit-ups require you to lift all the way up, while crunches require a slight lift off the ground.