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.

The ab crunch. You can add weight if you want, or even extend the number of crunches you do. This is all about mind-muscle connection; minimal movement with big results. So concentrate on the ...

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 ...

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

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," ...

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 ...

But crunches target just one of those muscle groups, so it's best to do your crunches as part of a larger, well-rounded core routine that works all of your abdominal muscles. Along with the abs ...