Skip sit-ups and try this 8-move dumbbell workout to build a stronger core and hips. While sit-ups remain popular at gyms, on ...

Often people find when they do a sit-up is that the initial lift hurts, but then the exercise becomes far easier, this is simply because the stomach muscles are not being used any more.

The six-pack muscles are formally known as the rectus abdominis, a muscle group responsible for flexion and extension of your torso in the sagittal plane of motion (think sit-ups, crunches and leg ...

However, there are a few key differences to note for each movement, particularly when it comes to the muscles involved. "While the terms 'crunches' and 'sit-ups' are sometimes used interchangeably ...