Hydrostatic weighing also referred to as underwater weighing hydrostatic body composition analysis and hydrodensitometry is a technique for measuring the density of a living persons body. It measures a persons total body density using archimedes principle of displacement.
Body Composition Analysis The Fit Lab
Underwater body fat measurement. Underwater testing is considered to be an accurate tool for measuring body fat. Because its based on the archimedes principle of fluid displacement this method is often called underwater weighing. 1 hydrostatic underwater weighing has long been considered the gold standard for body composition assessment. Typically we would expect values between 3000 kg and 25000 kilograms. This can be any positive value. It is a direct application of archimedes principle that an object displaces its own volume of water.
The american college of sports medicine acsm has called it the gold standard because of its high accuracy. Hydrostatic underwater weighing or hydrostatic testing is a method of determining body composition the ratio of body fat to lean mass. Typically this value would be between 350 and 500 kg. Enter the subjects weight underwater in kilograms. Underwater weighing for body fat percentage is highly accurate and considered the gold standard for measuring body fat percentage. Experts rate the best and worst in body fat measurement devices.
Fat floats density approximately 09 gcc muscles sinks 11 gcc and the air inside out lungs and gi tract floats 00012 gcc. These parts of our body contribute to our underwater weight uww by either helping us to sink or float and their densities are approximately as follows. Based on your buoyancy and your weight the person administering the test can calculate your body fat percentage. Hydrostatic body fat testingservices hydrostatic body fat testing as body fat testing rather than simple scale weight has become the standard in this new millennium hydrostatic testing underwater weighing has become universally regarded by industry experts as the gold standard in body fat testing. Report this value to the nearest 001 kg. The percentage that it estimates should be within 1 percent of.
Gyms measure body fat in myriad ways and this article will cover five of them.
Gallery of Underwater Body Fat Measurement
