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 ...

Sit-ups target your abdominal muscles, back muscles, and hip flexors, while crunches only target your abdominal muscles. • ...

We’ve all done it. Stared down at our stomach, groaned, and dropped to the floor to bang out a set of sit-ups—hoping, maybe praying, that each crunch would somehow melt away belly fat. It’s ...