From right here, contract your traps to tug your shoulders up and back in a shrugging movement, with out bending your elbows in any way. Deltoids – the muscles that supply the cap on the top from the shoulder. They are very important in lifting actions as they initiate the https://exercisesforupperback53197.blog4youth.com/27139387/the-2-minute-rule-for-how-to-build-muscle-in-the-upper-back