4 DUMBBELL SHRUG
SETS: 3 REPS: CONTINUOUSLY FOR 30 SEC. REST: 120 SEC.
Hold a dumbbell in each hand. Allow your arms to hang at your sides, with your palms facing each other . Shrug your shoulders as high as you can . Reverse the motion to return to the starting position. That's one rep. Perform as many consecutive reps as you can in 30 seconds.