When You Should (and Shouldn't) Squeeze Your Shoulder Blades Together
by Beth Skwarecki from Lifehacker on (#63DS7)
Our shoulder blades can move in multiple directions. They can slide up and down, toward each other or apart from each other, and they can rotate clockwise and counterclockwise. When you're doing an exercise that involves your upper back, instructors will sometimes boil down all this complexity to squeezing" or...