I’ve finally started using this underrated piece of kit and it’s transformed my core workouts

Woman exercising using Bosu ball.

Hands up if you see the Bosu ball at the gym but you’re not quite sure what to do with it? Or maybe you have one sitting idle at home, gathering dust. If so, you’re not alone.

I’m a fitness editor and certified personal trainer, and I’ve owned a Bosu ball for years but—full disclosure—it’s spent more time under the couch than in my workouts. Until now.