“I like to tell my clients, ‘Where the arms go, the legs will follow,’” Dane Miklaus, C.S.C.S., founder of WORK Training Studio in Irvine, California, tells Runner’s World. It’s not just a verbal cue ...

The trapezius muscle starts right below the skull, runs down the neck and across the shoulders, and then continues down the spine in a “V” shape. It works to stabilize your shoulders and upper back.