Getting visible abs is a goal for many men, and fitness companies cash in—pushing everything from fat-burning supplements to ...

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

adding that he himself aims to do a minimum of 500 crunches a day. David also recommended mixing in planks, leg raises and rotational exercises for a well-rounded core workout. And remember ...

Just five more seconds, guys. One more. All right, now we're going to go on to the vertical leg crunch. Same position, but with your legs in the air. Just crunch up nice and slow. Remember ...

Perform each move for 50 seconds, taking just 10 seconds of rest between each one. Complete all the moves, and then you're ...

Standing ab workouts normally involve more of a full-body workout than lying down, as you have to engage your leg muscles and glutes ... ups for a standing oblique crunch. Read on to find out ...