Round Dumbbell

Definitions of dumbbell. an exercising weight; two spheres connected by a short bar that serves as a handle. type of: exercising weight, free weight, weight. sports equipment used in calisthenic exercises and weightlifting; it is not attached to anything and is raised and lowered by use of the hands and arms.Not always but most of the free lifting weights plates are round because : During lifting round plates always have even resistance.Dumbbells are often used for joint-isolation exercises such as biceps curls, chest flyes or shoulder raises. Using dumbbells for full-body, multiplanar movements, however, can provide a variety of different strength outcomes. It also offers many benefits for cardiorespiratory fitness and flexibility.