Build strong, sleeve-filling upper body by nailing your form to target each muscle, from hands to shoulders.
Start by sitting with your knees a little wider than shoulder-width and your feet flat. Hold a dumbbell in your right hand and rest the back of your arm against your inner right thigh. Curl the dumbbell up towards your shoulder; make sure your upper body is motionless. Do 8-12 reps, then switch sides.
Sit up straight and grab a dumbbell with both hands. Raise it above your head so it’s vertical and in line with your spine. Brace your core and lower the weight behind your head until your forearms touch your biceps; then press back up to the start, keeping your upper arms stationary. Perform 8-12 reps.