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[The 4-component model of body composition].

H Rico1, M Revilla, E R Hernández

  • 1Departamento de Medicina, Hospital Universitario Príncipe de Asturias, Alcalá de Henares, Madrid.

Medicina Clinica
|March 28, 1992
PubMed
Summary
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This study analyzed body composition in 350 adults, finding significant sex differences in fat and mineral content. Women exhibited higher fat mass, while men showed greater bone mass, highlighting lifestyle impacts.

Area of Science:

  • Human physiology
  • Body composition analysis
  • Densitometry

Context:

  • Understanding body composition is crucial for health assessment.
  • Previous research has established general body composition norms.
  • This study focuses on a specific age range (15-49) and population.

Purpose:

  • To determine and compare the four main body components (fat, mineral, fat-free mass, and water) in adult men and women.
  • To investigate potential sex-based differences in body composition.
  • To evaluate mineral content in relation to peak bone mass achievement.

Summary:

  • Dual-energy X-ray absorptiometry (DXA) was used to assess body composition in 220 women and 130 men.
  • Men generally had higher values for fat-free mass, mineral content, and water compared to women (p < 0.001).

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  • Women exhibited significantly higher fat mass (p < 0.001) and maintained stable mineral content until age 49.

    • Impact:

    • Reveals significant sexual dimorphism in body composition, particularly in fat and mineral distribution.
    • Suggests that observed higher fat values in women may warrant further investigation into lifestyle and environmental factors.
    • Provides valuable data for understanding peak bone mass attainment and its maintenance in women.