Dumbbell Lateral Raise Overview The dumbbell lateral raise is a shoulder exercise used to strengthen the muscles of the shoulder. It's a good exercise for building width in your upper body which gives you the "V" shape. Learn how to perform lateral raises , an effective shoulder exercise that targets the lateral head of the deltoid muscle. Avoid common mistakes, modify the movement, and see the benefits of this exercise for your upper-body strength and appearance. Learn how to do lateral raises the correct way and avoid common mistakes, as well as several great lateral raise variations with this complete guide. The lateral raise is a strength training isolation exercise that works the shoulders (specifically the lateral deltoids), with the trapezius (upper back) supporting by stabilising the exercise. This exercise involves lifting weights away from your body, out to the side. It's an exercise which looks much easier than it is, and even using light weights for lateral raises can help to build strength and size. An added bonus is that lat raises can improve the range of motion in your shoulder, and ...