The dumbbell row is an exercise that targets multiple muscle groups simultaneously, making it a compound exercise. It is a key exercise for building back strength and muscle hypertrophy, with additional benefits of increased grip and biceps development when done in higher training volumes. The primary muscles worked by the dumbbell row are the upper back muscles, including the latissimus dorsi, rhomboids, and erector spinae. The secondary muscles worked are the biceps, forearm flexors, and rotator cuffs. Other muscles worked include the trapezius, posterior deltoids, and core muscles. The dumbbell row is a great exercise for building a stronger and thicker back since it targets most of the muscles in your back at once. It is also an excellent exercise for improving posture by strengthening the upper back, which contributes to healthy spine alignment.