Sit-ups and crunches both target your core muscles, but work differently. You can use both exercises to build strength, endurance, and control.

Sit-ups often come to mind when you think about working your abs or strengthening your core. It’s one of the most old-school, well-known exercises for ab-shredding, but recently, it’s become less and ...

Think you can stomach the FBI’s sit-up test? The FBI accepts applications from people between 23 and 37 — though veterans may qualify for an age waiver. Besides a background check, applicants must ...

If you've ever wondered (mid-crunch, most likely) exactly how many sit ups you should be doing every day to optimise your fitness, then you're in the right place - this is exactly the type of question ...