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The ability of a body to float in a fluid. Flotation occurs if the body-weight is less than the maximum buoyant force of the fluid. Specific gravity is a measure of a body's capacity to float in water. When a swimmer breathes in, the lungs fill with air and flotation is increased. Although flotation is a distinct advantage to a swimmer, many people have learnt to swim without this ability, and some have broken world records.

Subjects: Sports and Exercise Medicine.

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