A dumbbell is a piece of equipment used in weight training, and is a type of free weight. They can be used individually or in pairs (one for each hand).
Types of Dumbbells
There are currently three main types of dumbbell:
- Adjustable dumbbells consist of a metal bar whose centre portion is often engraved with a crosshatch pattern (knurling) to improve grip. Weight disks (plates) are slid onto the outer portions of the dumbbell and secured with clips or collars. Shown to the right is a “spinlock” dumbbell, whose ends are threaded to accept large nuts as collars. Alternatively, a dumbbell may have smooth ends with plates being secured by a sprung collar.
- Fixed-weight dumbbells are weights created in a dumbbell shape. Expensive varieties consist of cast iron, sometimes coated with rubber for safety. Cheaper versions consist of a rigid plastic shell that is filled with concrete.
A) Rubber coated Dumbbells
B) Colorful Dumbbells
C) Chrome Plated Dumbbells
- “Selectorized” dumbbells are adjustable dumbbells whose weight is changed mechanically — for example, by turning a dial or moving a selector pin — rather than manually adding or removing plates. This can make it very easy to change the weight of the dumbbell between exercises. Such dumbbells often include stands that double as storage for the additional weights not being used for a particular exercise.
Consumer Guide for buying dumbbells
– Evaluates your needs.
– Check your budget.
– Don’t need to buy expensive brands as prices are high
– Mostly made from steel with no advanced technology so better go for competitively priced products.
– We suggest you prefer steel products with rust proof guarantee
– Prices are per kg
– Dumbbells are now available in all sorts of colors.
By the early 17th century, the familiar shape of the dumbbell, with two equal weights attached to a handle, had appeared.
The forerunner of the dumbbell, halters, were used in ancient Greece as lifting weights and also as weights in the ancient Greek version of the long jump. A kind of dumbbells was also used in India for more than a millennium, shaped like a club – so named Indian club. The design of the “Nal”, as the equipment was referred to, can be seen as a halfway point between a barbell and a dumbbell. It was generally used in pairs, in workouts by wrestlers, bodybuilders, sports players, and others wishing to increase strength and muscle size.