Reverse crunches work your oblique muscles and the rectus abdominis, the pair of muscles that run vertically down the core and are responsible for giving your core that “six-pack” look.

The workout routine for 6-pack abs includes reverse crunches, woodchoppers ... from the American Council of Exercise showing high oblique activation. These should be performed for 20–30 reps ...

To find out more, I swapped my sit-ups for a standing oblique crunch. Read on to find out what happened. How to do a standing oblique crunch As you’ll read below, I mixed up the different ...