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 ...

The simplest way to increase the difficulty of sit-ups is to add some weight. You can add a dumbbell, kettlebell or sandbag.

The path to a durable, powerful body involves training your core like the protective cylinder it is—a shield for your spine.

Sit-ups may be one of the oldest exercises in the book, but they’re also one of the most hated (alongside Bulgarian split squats). While they may target your external and internal abdominal muscles, ...

If you’re looking for a quick core workout to get your abs popping this Monday morning, I’ve found it — my favorite Pilates instructor, Lilly Sabri, just shared this five-minute weighted core workout.