If you've been training for a while, you know classic ab workouts like crunches and situps only go so far to hone six-pack ...

2. Plank The second must-do exercise for achieving six-pack abs is the plank. The plank is an isometric exercise that works the deep muscles of the abdomen and lower back, strengthening the core ...

In the grand scheme of things, having V-cut abs and obliques that pop aren't much of an indicator of physical prowess (think VO2 max or strength). But the elusive 8-pack abs are a coveted trait ...

explains what you'll really need to show off those six-pack abs. Produced by Kevin Reilly. Additional camera by Grace Raver and Will Wei. Special thanks to Michael Bultman and CrossFit NYC.

Forget crunches. These ab workouts at home will sculpt the six-pack of your dreams. Getting tired of your usual round of abs exercises? These six core strength movements will ensure you don't plateau.