Whole body air displacement plethysmography compared with hydrodensitometry for body composition analysis

AIMS To assess the acceptability and feasibility of whole body air displacement plethysmography in children and to determine its precision and agreement with hydrodensitometry, an appropriate reference method. METHODS Age specific two component model equations were used to predict fat mass from body density in 22 children aged 8–12 years and in 10 adults for comparison of methods. Precision for each method was established from duplicate measurements. RESULTS Plethysmography was accepted more readily than hydrodensitometry (100%v 69% provided duplicate measurements). Precision for fat mass in children was 0.38 kg by plethysmography and 0.68 kg by hydrodensitometry, and results were similar in adults. The mean (SD) fat mass in children was 6.9 kg (4.0) and 6.7 kg (4.2) by plethysmography and hydrodensitometry, respectively, but 95% limits of agreement between methods were large (−4.1 kg to 3.5 kg fat). CONCLUSION Plethysmography was more readily accepted and had better precision than hydrodensitometry. It also provided similar body composition results for the group but not for all individual children.

[1]  C. Beardsmore.  Lung function from infancy to school age in cystic fibrosis. , 1995, Archives of disease in childhood.

[2]  T. Cole,et al.  Body composition techniques in health and disease: Contents , 1995 .

[3]  W. Siri,et al.  Body composition from fruid spaces and density : analysis of method. Techniques for measuring body composition , 1961 .

[4]  M. Levitt.  Volume and composition of human intestinal gas determined by means of an intestinal washout technic. , 1971, The New England journal of medicine.

[5]  M. Elia,et al.  Techniques for the measurement of body composition: a practical guide. , 1993, International journal of obesity and related metabolic disorders : journal of the International Association for the Study of Obesity.

[6]  M Alpsten,et al.  A multicompartment body composition technique based on computerized tomography. , 1994, International journal of obesity and related metabolic disorders : journal of the International Association for the Study of Obesity.

[7]  M. McCrory,et al.  Evaluation of a new air displacement plethysmograph for measuring human body composition. , 1995, Medicine and science in sports and exercise.

[8]  D. DuBois,et al.  A formula to estimate the approximate surface area if height and weight be known , 1989 .

[9]  S. Going,et al.  Hydration of the fat-free body in children during maturation. , 1984, Human biology.

[10]  W. Siri.  Body composition from fluid spaces and density: analysis of methods. 1961. , 1993, Nutrition.

[11]  F. Haschke,et al.  Body composition of reference children from birth to age 10 years. , 1982, The American journal of clinical nutrition.

[12]  Josef Brozek,et al.  Techniques for measuring body composition , 1961 .

[13]  A. Milner,et al.  Lung function in childhood. 2. Thoracic gas volumes and helium functional residual capacity measurements in healthy children. , 1975, British journal of diseases of the chest.

[14]  J. Kinney,et al.  Energy Metabolism: Tissue Determinants and Cellular Corollaries , 1992 .

[15]  A. Zapletal,et al.  [Normal values of static pulmonary volumes and ventilation in children and adolescents]. , 1976, Ceskoslovenska pediatrie.

[16]  D. Altman,et al.  STATISTICAL METHODS FOR ASSESSING AGREEMENT BETWEEN TWO METHODS OF CLINICAL MEASUREMENT , 1986, The Lancet.

[17]  M. McCrory,et al.  Body composition by air-displacement plethysmography by using predicted and measured thoracic gas volumes. , 1998, Journal of applied physiology.

[18]  P Dempster,et al.  A new air displacement method for the determination of human body composition. , 1995, Medicine and science in sports and exercise.

[19]  S. Broomhead,et al.  Effect of growth hormone on height, weight, and body composition in Prader-Willi syndrome , 1998, Archives of disease in childhood.

[20]  T. Cole,et al.  Four-component model of body composition in children: density and hydration of fat-free mass and comparison with simpler models. , 1999, The American journal of clinical nutrition.

[21]  P. Clayton,et al.  Lung volumes in healthy nonsmoking adults. , 1982, Bulletin europeen de physiopathologie respiratoire.

[22]  A. B. Dubois,et al.  Measurement of the volume of gas in the gastrointestinal tract; values in normal subjects and ambulatory patients. , 1956, The Journal of clinical investigation.

[23]  M. Elia,et al.  Body composition techniques in health and disease: Multi-compartment models for the assessment of body composition in health and disease , 1995 .

[24]  W. Coward,et al.  Four-component model for the assessment of body composition in humans: comparison with alternative methods, and evaluation of the density and hydration of fat-free mass. , 1992, Clinical science.

[25]  M. Rosenthal,et al.  Lung function in white children aged 4 to 19 years: II--Single breath analysis and plethysmography. , 1993, Thorax.