I love the clamshell exercise, too. I do this simple movement on the floor, from the comfort of my yoga mat (or carpet), and it's done more for my hip mobility, core stability, and glute (buttock) ...

After 15 years of practicing Pilates, one exercise has remained a constant in lower body routines: the clamshell. It may look simple, but don’t be fooled—this foundational move is one of the most ...