Sit-ups tighten and tone the abdominal muscles that run from beneath the sternum to above the pelvis. This results in a flatter stomach and, if practised along with plenty of aerobic exercise ...

We’ve said it before and we’ll say it again — when it comes to building a rock-solid core, endless sit-ups and planks alone won’t do it. Not only does switching things up help you beat ...

As much as I love a good set of crunches and sit-ups, there are times when I’d prefer not to have to unroll my yoga mat and lie down on the floor. When I’m traveling, for example, or when ...

Credit: Getty Images We’ve said it before and we’ll say it again — when it comes to building a rock-solid core, endless sit-ups and planks alone won’t do it. Not only does switching things ...

Enter: the V-up. Also known as a jackknife, the bodyweight move recruits the entire core and provides a stability challenge that sit-ups and crunches just can't get ya. And while it's a ...