Differences in Fat Mass Estimation Formulas in Physically Active Adult Population and Relation With Skinfold Sums.

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT04429581

Enrollment

2458

Registered

2020-06-12

Start date

2013-02-02

Completion date

2019-06-20

Last updated

2020-06-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Body Weight, Body Weight Changes

Keywords

Fat mass, Body composition assessement, Health, Antropometry

Brief summary

The objective of the present study was to analyze the differences between the formulas used to estimate fat mass and to establish the existing relationship with the skinfold sum in anthropometry. A total of 2,458 active subjects participated in the study (mean age: 27.98±7.43 years-old). Basic measurements and skinfolds variables were measured following the guidelines of the International Society for the Advancement in Kinanthropometry (ISAK), and Kerr, Durnin-Womersley, Faulkner and Carter equations were used to assess fat mass. Significative differences were found between all the formulas for the percentage of fat mass and the fat mass in kilograms. The correlations among the skinfolds sums and the different equations were high and significative in all the cases. There were differences between all the formulas used to estimate the fat mass. The six or eight skinfold sums could be a valid and better alternative than the fat mass equations or the BMI to assess the subcutaneous fat mass in physically active adults.

Interventions

OTHERAnthropometry

Study design

Observational model

CASE_ONLY

Time perspective

CROSS_SECTIONAL

Eligibility

Sex/Gender

ALL

Age

18 Years to 50 Years

Healthy volunteers

Yes

Inclusion criteria

* To be between 18 and 50 years old and to practice any sport in a regular basis

Exclusion criteria

* To have overweight or obesity

Design outcomes

Primary

Measure	Time frame	Description
Fat mass weight	6 years	Fat mass weight was assessed with skinfold measurements and different prediction equations. Measured in kilograms
Fat mass percentage	6 years	Fat mass percentage was assessed with skinfold measurements and different prediction equations. Measured in percentage of total weight.
Six and eight skinfold sums	6 years	Skinfolds were measured with a caliper, using anthropometry technique describes by ISAK

Secondary

Measure	Time frame	Description
Body Mass Index	6 years	Weight and height will be combined to report BMI in kg/m\^2
Weight	6 years	Measured in kilograms
Height	6 years	Measured in meters

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026