The dumbbell pullover works muscle groups throughout your upper body, including your latissimus dorsi, your pectoralis major

, the triceps on the back of your upper arms, and the serratus muscle on the side of your rib cage.

Is the pullover for chest or back?

A typical pullover involves resting the upper back on a flat bench. The hips are kept slightly flexed. Keeping the hips off the bench is said to help in balancing the weight and stability during the movement. The weight is held above the chest with elbows slightly bent.

How effective is dumbbell pullover?

The dumbbell pullover can improve shoulder mobility in that it stretches the lats and triceps — two muscle groups often responsible for impeded overhead mobility.