Crunches and situps can be great core exercises to tone the abs when performed correctly. Learn how to do a crunch the right ...

A fitness trainer shared how many crunches people should be able to do according to their age. Here's what to know about the main benefits of the exercise.

No matter which variations you follow, crunches have the advantage over sit-ups of being able to better target abdominal muscles. "Because the movement is smaller, you can control momentum more," ...

On average, David said the minimum number of crunches you should be able to do varies by age group. As we get older, our muscle mass and strength naturally declines, making exercises like crunches ...

That's why we chatted with Rachel MacPherson, CPT, a certified personal trainer and strength and conditioning specialist, who ...

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

Leg raises hits the lower abs perfectly without putting stress on the neck or back like crunches do. Lie flat on your back ...

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 ...