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A qualitative approach to assessing body compartments using bioelectrical variables.

A Vienna1, G Hauser

  • 1Department of Animal and Human Biology, University of Rome La Sapienza, Italy.

Collegium Antropologicum
|January 26, 2000
PubMed
Summary

This study used bioelectrical impedance analysis to assess body composition in adults and children, finding most subjects in good physical condition. The method, utilizing phase angle and reactance, is valuable for epidemiological studies of body composition.

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Area of Science:

  • Human Physiology
  • Biomedical Engineering
  • Nutritional Science

Background:

  • Assessing normal body composition is crucial for understanding health status.
  • Bioelectrical impedance analysis (BIA) offers a non-invasive method for body composition assessment.
  • Previous studies have explored BIA's utility in diverse populations.

Purpose of the Study:

  • To evaluate the normal balance of body composition in healthy European adults and Ecuadorian school children.
  • To determine the usefulness of bivariate analysis of reactance and phase angle using a Bioelectrical nomogram ('Biagram') for body composition assessment.
  • To explore the application of this qualitative approach in epidemiological studies.

Main Methods:

  • Utilized a Phase-Sensitive Impedance Analyzer (BIA 101, Akern s.r.l.) to measure bioelectrical values.

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  • Employed bivariate analysis of reactance and phase angle.
  • Interpreted results using the associated Bioelectrical nomogram ('Biagram') to assess extracellular to body cell mass ratios.

    • Main Results:

    • The vast majority of European adults and Ecuadorian children studied were confirmed to be in good physical condition.
    • Outliers were identified and attributed to factors like dehydration in adults and overhydration or malnutrition in children.
    • The Bioelectrical nomogram provided valuable insights into body composition ratios.

    Conclusions:

    • The Bioelectrical nomogram, based on phase angle and reactance, is an effective tool for assessing body composition.
    • This qualitative approach demonstrates utility in epidemiological studies for evaluating body composition in both healthy and diseased populations.
    • Bioelectrical impedance analysis provides a reliable method for body composition assessment across different age groups and ethnicities.