Step one foot behind you. Bend both knees to 90 degrees to lower down in the lunge. Pause for a moment, then press through ...

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) ...

Here’s how to know whether it’s safe to push through. By Erik Vance Erik Vance has written about pain for a decade and yet still somehow managed to ignore a foot injury while reporting this story.