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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.
Some bodybuilders use topical vasodilators to increase blood flow to the skin as well. Although historically controversial, [ 4 ] vascularity is a highly-sought-after aesthetic for many male bodybuilders, [ 5 ] but less so for female bodybuilders , [ 4 ] where the target aesthetic is relatively more towards aesthetic symmetry than extreme ...
In males, mean percentage body fat ranged from 23% at age 16–19 years to 31% at age 60–79 years. In females, mean percentage body fat ranged from 32% at age 8–11 years to 42% at age 60–79 years. But it is important to recognise that women need at least 9% more body fat than men to live a normal healthy life. [2]
A high body mass has been found to help with thermoregulation in regard to adapting for hot environments. This is considered on the basis that the levels of body fat were within healthy ranges i.e. the person's muscle-to-fat ratio was healthy. [15] However, extra body fat has been shown to offer some benefit in terms of keeping warm, especially ...
In lean healthy adult men, the total body water is about 60% (60–67%) of the total body weight; it is usually slightly lower in women (52–55%). [2] [3] The exact percentage of fluid relative to body weight is inversely proportional to the percentage of body fat. A lean 70 kg (150 lb) man, for example, has about 42 (42–47) liters of water ...
In general, a body fat percentage of 35 or more is considered a sign of obesity in women. It’s 25 percent or more for men. It’s 25 percent or more for men. But a healthy body fat percentage ...
The calculation measures the total volume of water in the body (lean tissue and muscle contain a higher percentage of water than fat), and estimates the percentage of fat based on this information. The result can fluctuate several percentage points depending on what has been eaten and how much water has been drunk before the analysis.
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