Athletes from all sports from football to hockey to baseball base their training on improving the strength of their core using compound movements. That's great for professional athletes but what about everyone else? What about guys who just want to get a ripped six-pack? Everyone is different; some may get abs from soley working the belly to exhaustion while others may get their abs to pop without a single situp. But to train the core effectively, it comes down to the three planes of motion: frontal, sagittal, and transerve. Doing abs exercises in a circuit style keeps the intensity high and will likely lead to more fat loss. Regardless of where you fit on the fitness spectrum, these 30 abs exercises will be the last guide you'll ever need.