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

Classic Abdominal Crunch How to do it ... Working with varied and effective exercises like those she does with her trainer @belen_workouts will help you reach your fitness goals.

But not all ab workouts are created equal ... Extended opposite elbow-to-knee crunch For achieving a midsection burn, certified personal trainer, Morgan Rees, says there are multiple methods ...

The study looked at the results of a number of different ab exercises, from the traditional crunch to an ab roller, on 30 healthy men and women aged between 20-45. The participants were a mix of ...

“When holding a plank, the work is constant,” says Emma. “In a crunch, you give the abdominal muscles a slight respite as you reach the floor, but in the plank you are just holding continuously.