Related Experiment Videos
Development and validation of skinfold-thickness prediction equations with a 4-compartment model
Matthew J Peterson1, Stefan A Czerwinski, Roger M Siervogel
1VA Medical Center, Geriatric Research, Education and Clinical Center, Durham, NC 27705, USA. peter076@mc.duke.edu
The American Journal of Clinical Nutrition
|April 30, 2003
Summary
New skinfold-thickness equations accurately estimate body fat percentage (BF%). Existing common equations, like Durnin and Womersley, often underestimate BF% in adults.
Area of Science:
- Exercise Physiology
- Human Body Composition Analysis
- Biostatistics
Background:
- Skimfold-thickness measurements are widely used for indirect body composition assessment.
- Accurate body fat percentage (%BF) estimation is crucial in clinical and research settings.
Purpose of the Study:
- To develop novel skinfold-thickness equations using a 4-compartment model as the reference standard.
- To compare the validity and precision of new equations against established Durnin and Womersley and Jackson and Pollock equations.
Main Methods:
- Regression analyses were performed on data from 681 healthy white adults.
- Percentage body fat (%BF) was calculated using a 4-compartment model.
- New and existing equations were validated and cross-validated using statistical tests and Bland-Altman plots.
Main Results:
- The newly developed equations provided %BF estimates closest to the 4-compartment model values.
- The Durnin and Womersley and Jackson and Pollock equations tended to underestimate %BF, particularly in individuals with higher body fat.
- Bland-Altman analysis indicated limited agreement between existing equations and the reference model.
Conclusions:
- Accurate and precise skinfold-thickness equations were developed based on a 4-compartment model reference.
- Commonly used skinfold equations may lead to underestimation of body fat percentage in adults.