With the earlier available range of conventional dumbbells, you needed to clutter up your place with dumbbells of varying weights. When you needed to change the intensity of the workout, you had to replace the dumbbell and pick up one with lower or higher weights. With the availability of Adjustable Dumbbells, you can dispense off with stocking on multiple dumbbells. With a simple turn of a dial, you can set the desired weight and carry on with your workout, without any interruptions.
Most adjustable dumbbells have incremental settings that enable you to set differential weights ranging from 5lbs to 10lbs. Made out of injection molded plastic, they are durable. The metal handles are anti corrosive and can be wiped clean post the workout. It is a known fact that short bursts of highly intense workouts are more effective in losing weight than prolonged sessions of intense activity. While using the dumbbells, the variable settings allow you to change the intensity alternately to ensure that you get the maximum benefit out of the workout.
Dumbbells allow a full body workout. But the intensity of workout required would differ depending on the part of the body. The abdominal region can withstand high intensity workouts while the back cannot be subjected to too heavy workouts. Depending on the area to be worked, the adjustable dumbbells allow variation in intensity.