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In the four compartment model, three compartments are measured by three different methods, the fourth is calculated
That's Correct!
It's Wrong!
In the four compartment model, three compartments are measured using three different methods, such as bioelectrical impedance analysis, dual-energy X-ray absorptiometry, and skinfold thickness measurements. These methods directly measure the amount of body fat, lean mass, and bone mineral content in the body. The fourth compartment, which represents residual mass, is calculated by subtracting the sum of the measured compartments from the total body mass. Therefore, it is true that the fourth compartment is calculated rather than directly measured.
