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Method for measuring total body cell mass and total extracellular mass by bioelectrical resistance and reactance

  • US 4,911,175 A
  • Filed: 09/17/1987
  • Issued: 03/27/1990
  • Est. Priority Date: 09/17/1987
  • Status: Expired due to Fees
First Claim
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1. A method for measuring certain ones of total body cell mass, total extracellular mass, total exchangeable potassium and total exchangeable sodium of a subject comprising the steps of:

  • attaching an electrical impedance analyzer to a subject;

    introducing a high frequency, low amperage current from the impedance analyzer into the body of the subject;

    measuring the total body resistance and reactance of the subject; and

    determining the total body cell mass and the total extracellular mass by applying the measured total body resistance and reactance and the height of the subject to equations derived from multiple linear regression analysis of measured bioelectrical resistance and reactance of a selected test group of subjects.

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