Air Displacement Plethysmography, Dual-Energy X-ray Absorptiometry, and Total Body Water to Evaluate Body Composition in Preschool-Age Children

2012 ◽  
Vol 112 (12) ◽  
pp. 1993-1998 ◽  
Author(s):  
Tina A. Crook ◽  
Narain Armbya ◽  
Mario A. Cleves ◽  
Thomas M. Badger ◽  
Aline Andres
Keyword(s):  
Body Composition ◽  
Total Body Water ◽  
Dual Energy ◽  
Body Water ◽  
Preschool Age ◽  
Air Displacement Plethysmography ◽  
X Ray ◽  
Preschool Age Children ◽  
Total Body

scholarly journals Body composition techniques and the four-compartment model in children

2000 ◽  
Vol 89 (2) ◽  
pp. 613-620 ◽  
Author(s):  
David A. Fields ◽  
Michael I. Goran
Keyword(s):  
Body Composition ◽  
Fat Mass ◽  
Total Body Water ◽  
Compartment Model ◽  
Dual Energy ◽  
Air Displacement Plethysmography ◽  
X Ray ◽  
Bod Pod ◽  
Hydrostatic Weighing ◽  
Total Body

The purpose of this study was to compare the accuracy, precision, and bias of fat mass (FM) as assessed by dual-energy X-ray absorptiometry (DXA), hydrostatic weighing (HW), air-displacement plethysmography (PM) using the BOD POD body composition system and total body water (TBW) against the four-compartment (4C) model in 25 children (11.4 ± 1.4 yr). The regression between FM by the 4C model and by DXA deviated significantly from the line of identity (FM by 4C model = 0.84 × FM by DXA + 0.95 kg; R 2 = 0.95), as did the regression between FM by 4C model and by TBW (FM by 4C model = 0.85 × FM by TBW − 0.89 kg; R 2 = 0.98). The regression between FM by the 4C model and by HW did not significantly deviate from the line of identity (FM by 4C model = 1.09 × FM by HW + 0.94 kg; R 2 = 0.95) and neither did the regression between FM by 4C (using density assessed by PM) and by PM (FM by 4C model = 1.03 × FM by PM + 0.88; R 2 = 0.97). DXA, HW, and TBW all showed a bias in the estimate of FM, but there was no bias for PM. In conclusion, PM was the only technique that could accurately, precisely, and without bias estimate FM in 9- to 14-yr-old children.

226 BODY COMPOSITION BY HYDRODENSITOMETRY, DUAL ENERGY X-RAY ABSORPTIOMETRY AND TOTAL BODY WATER IN ADULTS

1994 ◽  
Vol 26 (Supplement) ◽  
pp. S40
Author(s):  
R. Wellens ◽  
A. F. Roche ◽  
H. Khamis ◽  
S. Guo ◽  
W. C. Chumlea ◽  
...  
Keyword(s):  
Body Composition ◽  
Total Body Water ◽  
Dual Energy ◽  
Body Water ◽  
X Ray ◽  
Total Body

Body composition in white adults by dual-energy x-ray absorptiometry, densitometry, and total body water

1994 ◽  
Vol 59 (3) ◽  
pp. 547-555 ◽  
Author(s):  
R Wellens ◽  
W C Chumlea ◽  
S Guo ◽  
A F Roche ◽  
N V Reo ◽  
...  
Keyword(s):  
Body Composition ◽  
Total Body Water ◽  
Dual Energy ◽  
Body Water ◽  
X Ray ◽  
Total Body ◽  
White Adults

Four-Component Model of Body Composition in Chronic Renal Failure Comprising Dual-Energy X-ray Absorptiometry and Measurement of Total Body Water by Deuterium Oxide Dilution

1996 ◽  
Vol 91 (6) ◽  
pp. 763-769 ◽  
Author(s):  
Graham Woodrow ◽  
Brian Oldroyd ◽  
John H. Turney ◽  
Peter S. W. Davies ◽  
Janice M. E. Day ◽  
...  
Keyword(s):  
Renal Failure ◽  
Chronic Renal Failure ◽  
Total Body Water ◽  
Dual Energy ◽  
Body Water ◽  
Fat Free Mass ◽  
Component Model ◽  
X Ray ◽  
Four Component Model ◽  
Total Body

1. Assessment of nutrition in patients with chronic renal failure by body composition measurement techniques may be affected by variable hydration. 2. This study aimed to derive a four-component model of body composition (consisting of fat, protein, total body water and body mineral) from a combination of dual-energy X-ray absorptiometry and total body water measured by deuterium oxide dilution, allowing assessment of body protein stores without the effect of variation in hydration. Patients with chronic renal failure on haemodialysis, peritoneal dialysis and conservative treatment and a control group were studied. Patients with chronic renal failure were at an ‘ideal’ state of hydration on clinical assessment. 3. Hydration was defined by total body water as a percentage of fat-free mass measured by dual-energy X-ray absorptiometry, and no differences were found between chronic renal failure subgroups and control subjects (except in the female undialysed chronic renal failure subgroup). Hydration was significantly correlated with percentage total body fat in the control groups but not in patients with chronic renal failure. 4. Lean tissue measured by dual-energy X-ray absorptiometry was significantly reduced in three of the six chronic renal failure groups compared with control subjects (male and female patients on haemodialysis and female patients on peritoneal dialysis). Protein estimated from the four-component model failed to detect these abnormalities. 5. Lean tissue measured by dual-energy X-ray absorptiometry in normal subjects strongly correlated with fat-free mass measured by total body potassium in normal subjects (male r = 0.91; female r = 0.89, both P < 0.0001). The correlation of protein estimated from the four-component model with fat-free mass measured by total body potassium was far weaker in male control subjects (r = 0.51, P < 0.05) and not significant in female control subjects (r = 0.38, P not significant). In the normal subjects protein estimated from the four-component model showed a much greater variation from protein estimated by total body potassium than did protein estimated simply as 27% of dual-energy X-ray absorptiometry fat-free mass minus total body mineral. 6. Hydration in patients with chronic renal failure in whom fluid balance is believed to be normal on clinical criteria does not differ from that in normal subjects. The combined model of dual-energy X-ray absorptiometry and total body water is not a useful method for the measurement of body protein.

Fat-Free Mass and Percent Body Fat Assessments by Dual-Energy X-ray Absorptiometry, Densitometry and Total Body Water

1993 ◽  
pp. 71-74
Author(s):  
Rita Wellens ◽  
Alex F. Roche ◽  
Shumei Guo ◽  
William C. Chumlea ◽  
Roger M. Siervogel
Keyword(s):  
Body Fat ◽  
Total Body Water ◽  
Dual Energy ◽  
Body Water ◽  
Fat Free Mass ◽  
Percent Body Fat ◽  
X Ray ◽  
Total Body

Techniques For Assessment Of Body Composition In Health

2018 ◽  
Author(s):  
Carla M Prado ◽  
Camila LP Oliveira ◽  
M Cristina Gonzalez ◽  
Steven B Heymsfield
Keyword(s):  
Body Composition ◽  
Nutritional Status ◽  
Bioelectrical Impedance Analysis ◽  
Bioelectrical Impedance ◽  
Impedance Analysis ◽  
Dual Energy ◽  
Composition Analysis ◽  
Body Composition Assessment ◽  
Air Displacement Plethysmography ◽  
X Ray

Body composition assessment is an important tool in both clinical and research settings able to characterize the nutritional status of individuals in various physiologic and pathologic conditions. Health care professionals can use the information acquired by body composition analysis for the prevention and treatment of diseases, ultimately improving health status. Here we describe commonly used techniques to assess body composition in healthy individuals, including dual-energy x-ray absorptiometry, bioelectrical impedance analysis, air displacement plethysmography, and ultrasonography. Understanding the key underlying concept(s) of each assessment method, as well as its advantages and limitations, facilitates selection of the method of choice and the method of the compartment of interest. This review contains 5 figures, 3 tables and 52 references Key words: air displacement plethysmography, bioelectrical impedance analysis, body composition, disease, dual-energy x-ray absorptiometry, health, muscle mass, nutritional status, obesity, sarcopenia, ultrasound fat mass

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