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Related Experiment Videos

Body composition at the bedside

S Ghosh1, D Meister, S Cowen

  • 1Department of Medicine, University of Edinburgh, UK.

European Journal of Gastroenterology & Hepatology
|August 1, 1997
PubMed
Summary
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An inexpensive hand-held bioelectric impedance analysis machine accurately measures body composition (lean and fat mass) in non-obese adults. This device offers a quick and reliable method for assessing body composition, particularly useful for potentially malnourished patients.

Area of Science:

  • Biomedical Engineering
  • Human Physiology
  • Nutritional Science

Background:

  • Accurate body composition assessment is crucial for diagnosing and managing various health conditions.
  • Standard methods like dual energy X-ray absorptiometry (DXA) can be expensive and time-consuming.
  • Bioelectrical impedance analysis (BIA) offers a potentially more accessible alternative.

Purpose of the Study:

  • To technically validate an inexpensive, hand-held BIA device against established methods (in-house BIA and DXA).
  • To assess the utility of the hand-held BIA for body composition analysis in patient populations, including those at risk of malnutrition.

Main Methods:

  • Prospective, simultaneous comparison of measurements from hand-held BIA, in-house BIA, and DXA.
  • Technical comparisons involved bias, limits of agreement, and correlation analyses.

Related Experiment Videos

  • Body composition was evaluated in healthy volunteers and patients with eating disorders, chronic alcoholic pancreatitis, and inflammatory bowel disease.

    • Main Results:

    • The hand-held BIA machine showed high correlation with the in-house BIA machine (r = 0.996).
    • Agreement between hand-held BIA and DXA for lean mass measurement demonstrated a small bias (-0.07%) and satisfactory limits of agreement (-7.97% to 7.76%).
    • Patients with alcoholic pancreatitis exhibited significantly lower lean body mass proportions compared to controls.

    Conclusions:

    • The inexpensive hand-held BIA device provides accurate two-compartment (lean/fat) body composition measurements in non-obese and thin adults.
    • The machine is capable of rapid (10-minute) and reliable body composition assessment.
    • This technology holds promise for clinical settings, especially for identifying nutritional status in vulnerable patient groups.