This simple floor exercise is redefining how Americans train their core—without crunches, machines, or strain on the spine.

When we think of core exercises, standard moves like situps and crunches are often a go-to. But working the side body is an important piece of a well-rounded core routine that is sometimes overlooked.

Denise Austin just shared a motivational workout video on Instagram. The 66-year-old demonstrated a “three-minute” workout to strengthen abs. The fitness star demonstrated a total of five simple moves ...

If you’re looking to tone your core, the bicycle crunch is a good addition to your workout. It has the benefits of the standard crunch, but it engages additional core muscles — working your internal ...

They’re often lumped together as “ab exercises,” but crunches and situps aren’t the same thing — and choosing the right one can impact your results (and your spine). So, if your goal is stronger abs, ...