Hold the dumbbell in a hammer grip and stand in a shoulder width stance
Take a deep breathe at the bottom and Curl the dumbbell up without moving your shoulder
Make sure that you do not fully extend your elbows on your way down
Hold the dumbbell in a hammer grip and stand in a shoulder width stance
Take a deep breathe at the bottom and Curl the dumbbell up without moving your shoulder
Make sure that you do not fully extend your elbows on your way down