Patent ID: 7233823

Claim:
Apparatus for measuring the body composition of an individual having a first electronic module ( 6 ) for measuring a bioelectric impedance and at least one electrical energy source intended to generate a variable electrical signal that passes through the body or a part of the body of the individual when the body or the part of the body of the individual is connected to said at least one electrical energy source, characterized in that said at least one energy source is a voltage generator ( 10 ) adapted to apply a voltage signal ( 11 ) of rectangular waveform across the body or the part of the body of the individual, and said module comprises means for obtaining voltage measurements across the body or the part of the body of the individual based on the voltage signal of rectangular waveform and for determining, on the basis of the voltage measurements, at least one of: the extracellular resistance R e of the body or of the part of the body of the individual; the intracellular resistance R i of the body or of the part of the body of the individual; and a value that is a combination of the extracellular resistance and the intracellular resistance of the body or of the part of the body of the individual.