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Clinical Anthropometrics and Body Composition from 3-Dimensional Optical Imaging
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Clinical Anthropometrics and Body Composition from 3-Dimensional Optical Imaging

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Chart analysis of body composition change among pre- and postadolescent Japanese subjects assessed by underwater

K Hattori1, Y Tahara, K Moji

  • 1Department of Health and Physical Education, Faculty of Education, Ibaraki University, Mito, Ibaraki, Japan. khattori@mx.ibaraki.ac.jp

International Journal of Obesity and Related Metabolic Disorders : Journal of the International Association for the Study of Obesity
|February 11, 2004
PubMed

Insights

Body composition charts reveal distinct age-related changes in fat-free mass (FFM) and fat mass (FM) for Japanese males and females. These charts highlight gender-specific patterns in body composition development from adolescence through adulthood.

Area of Science:

  • Human Physiology
  • Body Composition Analysis
  • Anthropometry

Background:

  • Understanding age-related body composition changes is crucial for health assessment.
  • Previous studies have not fully elucidated gender-specific trends in Japanese populations.
  • Body composition charts offer a visual method to analyze mass distribution.

Purpose of the Study:

  • To investigate the influence of age on the relationships between fat-free mass (FFM) and fat mass (FM).
  • To analyze age-related changes in fat-free mass index (FFMI) and fat mass index (FMI).
  • To apply body composition chart analysis to pre- and post-adolescent Japanese subjects.

Main Methods:

  • A cross-sectional study involving 516 children (11-17 years) and 840 adults (18-59 years).
  • Body composition determined using the underwater weighing method.
  • Fat mass (FM) and fat-free mass (FFM) plotted on charts, along with their respective indices (FMI and FFMI).

Main Results:

  • Male subjects showed stable FFM and FM until age 14, followed by concurrent growth, then decreased FFM with increased FM in adulthood.
  • Male adolescents exhibited increasing FFMI and decreasing FMI, while adults showed decreasing FFMI and increasing FMI.
  • Female subjects displayed a consistent increase in FMI across all ages, with a notable decline in FFMI after middle age.

Conclusions:

  • Body composition charts effectively illustrate gender-specific, age-related changes in FFM and FM relationships.
  • Body Mass Index changes did not consistently reflect adiposity levels in males, unlike in females.
Abstract

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