The reverse crunch is a simple core exercise that targets those hard-to-hit lower abs — without straining your neck and back.

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 ...

Crunches are the ab exercise you need to add into your regular workout to improve your core strength, a fitness trainer suggests. Joseph David, a New York City based trainer, claims that core ...