Performing the: A Step-by-Step Tutorial Dumbbell Side Lying One Hand Raise
Keep your arm straight but with a slight bend at the elbow, and let it hang down towards the floor so that the dumbbell is just above your shoulder.
Slowly raise the dumbbell up in a semi-circular motion until your arm is fully extended above you, keeping your elbow slightly bent throughout the motion.
Hold this position for a second to maximize the contraction in your shoulder muscles.
Slowly lower the dumbbell back down to the starting position in a controlled manner, repeating for the desired number of repetitions before switching to the other side.