Validity of the estimate equations for the fat free mass through the method of the bioelectric impedance in any population
Keywords:
electric resistance, estimate equations, fat free mass, analyzers of electric bioimpedance.Abstract
A study with the purpose of comparing 3 equations --selected at ramdom from the literature on the topic--for the estimation of fat free mass was carried out, and these, in turn, with that estimated when using the clinical approach. For this, the not corrected and corrected values of the corporal electric resistance were taken into account, and mean differences were used as statistical approaches (distribution of the Student´s t test) and the Bland Altman method. The results showed that these estimate equations for fat free mass can be used in the clinical evaluation (in apparently healthy persons and in sick individuals) if a correction factor is introduced to each of them.
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