@anatomy.of.motion: Lateral raise is an exercise dedicated to the lateral deltoid. To perform it, stand holding dumbbells at your sides with arms straight and palms facing inward. Raise the weights out to the sides, up to about shoulder height, then lower them back down in a controlled motion. This movement may also use some help from the anterior and posterior deltoid heads, but their work is more focused on stabilization, while the main work is done purely by the lateral head of the deltoid.