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 ...

Core training has always been part of military PT and fitness testing. From crunches to sit-ups, flutter kicks, leg tucks and plank poses, the U.S. military uses many exercises to test core strength.

The first test a soldier has to take to earn a Ranger tab just got harder — unless you really hate sit-ups. The Army announced Thursday a completely revamped physical fitness test for Ranger School, ...