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[A study on body fat in children aged 7-12]
1Department of Children and Adolescent Health, China Medical University, Shenyang.
Summary
Body fat in healthy children (7-12 years) averaged 15.12% for boys and 17.15% for girls. Skinfold measurements strongly correlated with body fat proportion, aiding in its estimation.
Area of Science:
- Pediatric Health
- Body Composition Analysis
- Anthropometry
Context:
- Assessing body fat is crucial for monitoring child health and development.
- Accurate body composition data in children informs nutritional and health interventions.
- Previous research has established various methods for estimating body fat in pediatric populations.
Purpose:
- To determine the average body fat proportion in healthy children aged 7-12 years.
- To investigate the correlation between skinfold measurements and body fat percentage.
- To develop a regression equation for estimating body fat based on skinfold data.
Summary:
- Sixty-three healthy children (7-12 years) underwent body density measurements using hydrostatic weighing and Brozek's formula for body fat calculation.
- Skinfold thickness was measured at four body sites using a Harpenden caliper.
- Results indicated average body fat proportions of 15.12% for males and 17.15% for females, with no significant sex-based difference.
- Stepwise regression analysis revealed a strong correlation (r=0.6664, P<0.01) between body fat proportion and skinfold measurements.
- A regression equation was formulated to estimate body fat from skinfold data, contributing to understanding body fat development in children.
Impact:
- Provides normative data for body fat percentage in healthy children aged 7-12.
- Highlights the utility of skinfold measurements as a reliable and accessible method for estimating body fat in this age group.
- Offers a practical regression equation for researchers and clinicians to assess pediatric body composition.