Advanced: Straight-Arm Shrug. Stand with feet hip-width apart, arms extended straight out to sides at shoulder height, holding a dumbbell in each hand. Keep arms straight as you lift and lower right shoulder to ear. Switch sides; repeat. Do 30 reps, alternating sides, keeping arms lifted entire time.
Luckily, POPSUGAR Fitness host and personal trainer Anna Renderer has taken all that anxiety out of the equation with an easy-to-follow dumbbell circuit .
Work your upper body with these simple strengthening moves. In addition to toning your arms, they'll also build muscles in your shoulders, back, and chest.
To get sleeve-splitting arms like Vin Diesel or Mark Wahlberg, you're gonna have to trash your triceps, blast your biceps, and make your forearms pop. In short .