A swimming float, commonly known as pool float or floaty, is a device used for or other very young children who are beginning to learn how to Human swimming, or during exercise for therapeutic or training purposes. These devices, which come in many shapes and types, are used to aid them with buoyancy, or for floating on for fun.
The most common floats for children and adults are swim ring (in the middle of which the user swims) and inflatable armbands (placed around the user's arms). After being inflated through a valve, they are much less dense than water because they are composed mainly of air, surrounded by a thin layer of synthetic material.
Float-assisted swimming can be more difficult than free swimming, because if the float is held in front of the swimmer a more vigorous workout for the legs is given as the swimmer's weight is propelled solely by the legs, and vice versa for the arms.
Swimmers of all ability can use them. Young swimmers can develop their kicking action while elite swimmers can refine their kick. They are also used to strengthen a swimmers' legs. BBC Sport Academy - Swimming equipment guide
A variation known as the "pool noodle" is a long, thin cylinder, measuring long and in diameter, sometimes with a hollow core. It can be used to aid in floating or stretching exercises.
A pull buoy or "leg float" is used to focus exercise on the arms.
Pool dumbbells are used for strength training where muscles push down against buoyancy. This is the opposite of conventional , which are used to force muscles to pull up, against gravity.
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