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block diagram
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Fat-Free Mass
In order to derive fat-free mass in kilograms, a bioimpedance analyzer applies
a small alternating electrical current to the body via electrodes. The resistance
of the body is measured. Using the measured resistance (R), the analyzer estimates
fat-free mass in kilograms.
Body Cell Mass
To derive body cell mass, a bioimpedance analyzer measures both the resistance (R) and reactance (X) of the body. Using the measured resistance and reactance, the analyzer estimates body cell mass in kilograms.
Total Body Water
Using measured resistance, the analyzer estimates total body water in liters.
Intracellular Water
Using measured resistance and reactance, the analyzer estimates intracellular water in liters.
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