Doing the classic sit-up involves having a partner hold your feet or anchoring your feet under a brace as you lift your torso toward your thighs. This variation may be common, but it isn't necessarily ...

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 ...

A stomach bulge during sit-ups may mean diastasis recti or a hernia. Both conditions are treatable, often with exercise or medical intervention.

The classic sit-up is a workout staple. Whether you've become all too familiar with the movement in your weekend HIIT class or eked out those last few reps while following a home workout video, you've ...

Alison Brie and Jessica Biel are showing off the L-sit chin-up. Here's how to do one with good form, and how much strength it requires. When Bruno first shared a video of Timberlake knocking out 10 ...