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Related Experiment Video

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Assessment of Child Anthropometry in a Large Epidemiologic Study

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Agreement between mechanical and digital skinfold callipers.

Ana Catarina Vaz Pinheiro de Furtado Faria^1,2, Diogo Vicente Martinho^2,3, Bruno Rafael Ribeiro Abreu²

¹Laboratory for Applied Health Research (LabinSaúde), Coimbra, Portugal.

Nutrition and Health

|August 16, 2022

Summary

Digital and mechanical skinfold calipers show significant differences in measuring subcutaneous adipose tissue thickness. Clinical practice must account for equipment-specific variations in fat mass estimation to ensure accurate assessments.

Keywords:

adipose tissue anthropometry body composition clinical examination skinfold thickness

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Area of Science:

Biomedical Engineering
Anthropometry
Clinical Measurement

Background:

Skinfold calipers are standard tools for estimating subcutaneous adipose tissue.
A new digital system, LipoTool, requires comparison with existing mechanical devices.
Lack of comparative studies hinders understanding of digital caliper accuracy.

Purpose of the Study:

To evaluate the agreement between digital and mechanical skinfold calipers.
To identify potential discrepancies in subcutaneous fat measurements between two caliper types.
To inform clinical practice regarding equipment selection for fat mass estimation.

Main Methods:

22 healthy adult males participated in the study.
A certified observer used both digital and mechanical calipers to measure eight skinfolds twice.
Statistical analysis included the Wilcoxon signed rank test and normality tests to assess differences and error distribution.

Main Results:

Significant differences were observed between digital and mechanical calipers for five skinfolds: triceps, subscapular, suprailiac, supraspinale, and abdominal.
Constant differences between the two types of calipers were noted across measurements.
Statistical significance (P < 0.05) was found for triceps, subscapular, suprailiac, supraspinale, abdominal, thigh, and calf skinfolds.

Conclusions:

Mechanical and digital skinfold calipers yield different measurements of skinfold thickness.
Equipment-related variations in fat mass estimation need consideration in clinical settings.
Further research is warranted to establish precise conversion factors or guidelines for different caliper types.