Explore the differences between decline crunches and sit-ups. Find out what muscles each targets, and learn proper form to enhance your core training.

When most people think of a strong core or achieving abs, the first exercise that comes to mind is often sit-ups. While sit-ups have long been a go-to for strengthening the core, they're not always ...

GHD sit-ups are the type of advanced abs exercise reserved for those in the gym who like to send their core muscles into meltdown. Think of them as the sister of the sit-up that likes to show off.

Crunches and situps are both ab exercises that target your core, but they aren't the same. Here's how to choose the best ...

To the untrained eye the L-sit might look like a simple pose, but don’t be fooled, this gymnastics move is one of the most brutally effective exercises out there. Yes, technically the L-sit is just ...

I'm someone who finds standard ab workouts a little dry. Sit-up to crunch to plank, back to sit-ups, and so on. While these exercises are effective for engaging your core muscles, they’re far from ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images We’ve said it before and we’ll say it again — when it comes to building a ...