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Grasp the skin, shake it, imagen and pinch it between the jaws of a imagen caliper. The Dunk Tank Hydrodensitornetry (Underwater Weighing) This method measures whole body density by determining body volume according to Archimedes' principle, which states that an object submerged in water is kept afloat by the weight of the water it displaced. This technique first requires weighing imagen a person outside the tank then immersing them totally in a tank of water. The densities of bone and muscles are higher than water, and fat is less dense than water. So a person with more bone and muscle will weigh more in water, meaning they have a higher bone density and lower percentage of body fat. The body volume and density is calculated by using standard formulas (Siri or Brozek). Body fat percentage is then calculated from body density. A person with more bone and muscle will weigh more in water, meaning they have a higher bone density and lower percentage of body fat The underwater weighing system uses strain gauges mounted under the water on the floor of a stainless steel tank.
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