No matter which variations you follow, crunches have the advantage over sit-ups of being able to better target abdominal muscles. "Because the movement is smaller, you can control momentum more," ...

"It'll fire up your abs like nothing else ... if your aim is to build functional core strength. It's a bit like push-ups for pressing strength. Instead of persisting with countless reps on ...

You don’t crunches, sit-ups and planks to increase your core strength and definition, just take this 12-move standing ...