Pullovers
Upper back, sides of chest, shoulders, and upper arm backs.
Hold a single dumbbell in both hands while lying on your back with your arms extended overhead. Knees should point up, feet should be flat on the floor.
Extend your arms gently above your head and behind you, keeping your elbows slightly bent and your upper arms close to your ears, while keeping your core strong and your grip on the dumbbell secure.
Return to the starting position when your arms are roughly parallel to the ground.
Perform between 8 and 12 sets.