Relationships between body roundness with body fat and visceral adipose tissue emerging from a new geometrical model

Diana M. Thomas, Carl Bredlau, Anja Bosy-Westphal, Manfred Mueller, Wei Shen, Dympna Gallagher, Yuna Maeda, Andrew McDougall, Courtney M. Peterson, Eric Ravussin, Steven B. Heymsfield

Research output: Contribution to journalArticle

66 Citations (Scopus)

Abstract

Objective To develop a new geometrical index that combines height, waist circumference (WC), and hip circumference (HC) and relate this index to total and visceral body fat. Design and Methods Subject data were pooled from three databases that contained demographic, anthropometric, dual energy X-ray absorptiometry (DXA) measured fat mass, and magnetic resonance imaging measured visceral adipose tissue (VAT) volume. Two elliptical models of the human body were developed. Body roundness was calculated from the model using a well-established constant arising from the theory. Regression models based on eccentricity and other variables were used to predict %body fat and %VAT. Results A body roundness index (BRI) was derived to quantify the individual body shape in a height-independent manner. Body roundness slightly improved predictions of %body fat and %VAT compared to the traditional metrics of body mass index (BMI), WC, or HC. On this basis, healthy body roundness ranges were established. An automated graphical program simulating study results was placed at http://www.pbrc.edu/bodyroundness. Conclusion BRI, a new shape measure, is a predictor of %body fat and %VAT and can be applied as a visual tool for health status evaluations.

Original languageEnglish
Pages (from-to)2264-2271
Number of pages8
JournalObesity
Volume21
Issue number11
DOIs
StatePublished - 1 Nov 2013

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Intra-Abdominal Fat
Adipose Tissue
Waist Circumference
Hip
Photon Absorptiometry
Human Body
Health Status
Body Mass Index
Fats
Magnetic Resonance Imaging
Demography
Databases

Cite this

Thomas, D. M., Bredlau, C., Bosy-Westphal, A., Mueller, M., Shen, W., Gallagher, D., ... Heymsfield, S. B. (2013). Relationships between body roundness with body fat and visceral adipose tissue emerging from a new geometrical model. Obesity, 21(11), 2264-2271. https://doi.org/10.1002/oby.20408
Thomas, Diana M. ; Bredlau, Carl ; Bosy-Westphal, Anja ; Mueller, Manfred ; Shen, Wei ; Gallagher, Dympna ; Maeda, Yuna ; McDougall, Andrew ; Peterson, Courtney M. ; Ravussin, Eric ; Heymsfield, Steven B. / Relationships between body roundness with body fat and visceral adipose tissue emerging from a new geometrical model. In: Obesity. 2013 ; Vol. 21, No. 11. pp. 2264-2271.
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abstract = "Objective To develop a new geometrical index that combines height, waist circumference (WC), and hip circumference (HC) and relate this index to total and visceral body fat. Design and Methods Subject data were pooled from three databases that contained demographic, anthropometric, dual energy X-ray absorptiometry (DXA) measured fat mass, and magnetic resonance imaging measured visceral adipose tissue (VAT) volume. Two elliptical models of the human body were developed. Body roundness was calculated from the model using a well-established constant arising from the theory. Regression models based on eccentricity and other variables were used to predict {\%}body fat and {\%}VAT. Results A body roundness index (BRI) was derived to quantify the individual body shape in a height-independent manner. Body roundness slightly improved predictions of {\%}body fat and {\%}VAT compared to the traditional metrics of body mass index (BMI), WC, or HC. On this basis, healthy body roundness ranges were established. An automated graphical program simulating study results was placed at http://www.pbrc.edu/bodyroundness. Conclusion BRI, a new shape measure, is a predictor of {\%}body fat and {\%}VAT and can be applied as a visual tool for health status evaluations.",
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Thomas, DM, Bredlau, C, Bosy-Westphal, A, Mueller, M, Shen, W, Gallagher, D, Maeda, Y, McDougall, A, Peterson, CM, Ravussin, E & Heymsfield, SB 2013, 'Relationships between body roundness with body fat and visceral adipose tissue emerging from a new geometrical model', Obesity, vol. 21, no. 11, pp. 2264-2271. https://doi.org/10.1002/oby.20408

Relationships between body roundness with body fat and visceral adipose tissue emerging from a new geometrical model. / Thomas, Diana M.; Bredlau, Carl; Bosy-Westphal, Anja; Mueller, Manfred; Shen, Wei; Gallagher, Dympna; Maeda, Yuna; McDougall, Andrew; Peterson, Courtney M.; Ravussin, Eric; Heymsfield, Steven B.

In: Obesity, Vol. 21, No. 11, 01.11.2013, p. 2264-2271.

Research output: Contribution to journalArticle

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AU - Bredlau, Carl

AU - Bosy-Westphal, Anja

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AU - Gallagher, Dympna

AU - Maeda, Yuna

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AU - Heymsfield, Steven B.

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N2 - Objective To develop a new geometrical index that combines height, waist circumference (WC), and hip circumference (HC) and relate this index to total and visceral body fat. Design and Methods Subject data were pooled from three databases that contained demographic, anthropometric, dual energy X-ray absorptiometry (DXA) measured fat mass, and magnetic resonance imaging measured visceral adipose tissue (VAT) volume. Two elliptical models of the human body were developed. Body roundness was calculated from the model using a well-established constant arising from the theory. Regression models based on eccentricity and other variables were used to predict %body fat and %VAT. Results A body roundness index (BRI) was derived to quantify the individual body shape in a height-independent manner. Body roundness slightly improved predictions of %body fat and %VAT compared to the traditional metrics of body mass index (BMI), WC, or HC. On this basis, healthy body roundness ranges were established. An automated graphical program simulating study results was placed at http://www.pbrc.edu/bodyroundness. Conclusion BRI, a new shape measure, is a predictor of %body fat and %VAT and can be applied as a visual tool for health status evaluations.

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Thomas DM, Bredlau C, Bosy-Westphal A, Mueller M, Shen W, Gallagher D et al. Relationships between body roundness with body fat and visceral adipose tissue emerging from a new geometrical model. Obesity. 2013 Nov 1;21(11):2264-2271. https://doi.org/10.1002/oby.20408