The fitness world has embraced a new champion in core training, and traditional sit-ups have taken a backseat. The plank, ...

That's why PS created a 30-day plank challenge you can do at home. The goal of this plank challenge is to target multiple parts of your core (obliques, abdominals, back, glutes), along with a bit ...

Planks are generally regarded as one of the best core (and total-body) exercises you can do, so I was excited and nervous to ...