I’m a fitness writer and I think this is the most underrated exercise for building leg strength and reducing knee pain

A smiling woman in gym gear lying on her back on an exercise mat in an open plan kitchen with her feet on a chair and her hips raised.

I’ve been lifting weights for more than five years and I work as a fitness writer, so I often assume that I’ve tried every strength exercise out there.

Thankfully, that isn’t true, because I recently discovered a move that has transformed how I train my lower body and decreased pain in my knee.