Primary Muscle Group: Shoulders - Deltoids
Muscle Groups Worked in This Exercise: Shoulders - Deltoids
Preparation: Stand in an upright position with head and back straight with spine. Hold a single dumbbell beginning with left arm. Your arm should be positioned with your elbow bent at 90 degrees and positioned with your upper arm joint extended straight out from your shoulder with your elbow bent facing forward with palm facing the floor.
Breathing: Breath out on the contraction upward and breath back in on the way back down to the start position.