"Dumbbell Chest Supported Row" is a video demonstrating an exercise where you lie face down on an incline bench with your chest supported and hold a dumbbell in each hand. From this position, you perform rowing motions by pulling the dumbbells towards your torso while keeping your elbows close to your body and squeezing your shoulder blades together at the top of the movement. This exercise primarily targets the muscles of the upper back, including the latissimus dorsi, rhomboids, and trapezius, as well as the biceps and forearms for stabilization. The chest-supported position helps isolate the back muscles and reduces strain on the lower back. The video typically emphasizes proper form, technique, variations, and the benefits of incorporating dumbbell chest supported rows into a workout routine to improve back strength, posture, and overall upper body development.