Sit-ups are a classic core-strengthening exercise, great for working the abdominal muscles near the surface of your torso.

Ready to torch your obliques? I added this simple standing ab exercise to my routine for a week. Here’s how I got on.

Soldiers trying to earn the Army Ranger tab will have to do more challenging functional fitness exercises starting day one.

Standing abs workouts are a great way to strengthen your core without using common exercises like sit-ups, crunches and planks. Adding a kettlebell into the mix only boosts the benefits of these ...

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 ...

The main difference between sit-ups and crunches is the range of motion involved in each exercise. Sit-ups require you to lift all the way up, while crunches require a slight lift off the ground.

“Because you are twisting your torso during the movement, you are really engaging your obliques in a way that sit-ups and planks cannot do,” says Steve. Don’t be surprised if you need to opt ...