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Air displacement plethysmography ( ADP, also known as whole-body air displacement plethysmography) is a recognized and scientifically validated densitometric method to measure human body composition . ADP is based on the same principles as the gold standard method of hydrostatic weighing, but through a densitometric technique that uses air ...
Bioelectrical impedance analysis ( BIA) is a method for estimating body composition, in particular body fat and muscle mass, where a weak electric current flows through the body, and the voltage is measured in order to calculate impedance ( resistance and reactance) of the body. Most body water is stored in muscle.
Hydrostatic weighing. Hydrostatic weighing, also referred to as underwater weighing, hydrostatic body composition analysis and hydrodensitometry, is a technique for measuring the density of a living person's body. It is a direct application of Archimedes' principle, that an object displaces its own volume of water.
Body composition. In physical fitness, body composition refers to quantifying the different components (or "compartments") of a human body. [ 1] The selection of compartments varies by model but may include fat, bone, water, and muscle. [ 2] Two people of the same gender, height, and body weight may have completely different body types as a ...
Human thermoregulation. As in other mammals, human thermoregulation is an important aspect of homeostasis. In thermoregulation, body heat is generated mostly in the deep organs, especially the liver, brain, and heart, and in contraction of skeletal muscles. [ 1] Humans have been able to adapt to a great diversity of climates, including hot ...
Standard testing. The Physical Fitness Assessment consists of a Body Composition Assessment (BCA) and a Physical Readiness Test (PRT), which includes a timed cardio event consisting of 1.5-mile (2.4 km) run/treadmill or a 500 yd (460 m) swim (or an alternate cardio consisting of 12-minutes on a stationary bike), timed curl-ups, and timed sit-ups.
Normal human body temperature ( normothermia, euthermia) is the typical temperature range found in humans. The normal human body temperature range is typically stated as 36.5–37.5 °C (97.7–99.5 °F). [ 8][ 9] Human body temperature varies. It depends on sex, age, time of day, exertion level, health status (such as illness and menstruation ...
The United States Air Force Physical Fitness Assessment (PFA) is designed to test the body composition, muscular strength/endurance, and cardiovascular respiratory fitness of airmen in the United States Air Force. As part of the Fit to Fight program, the Air Force adopted a more stringent physical fitness assessment in 2004 and replaced the ...