Prediction of Fatness by Standing 8-Electrode Bioimpedance: A Multiethnic Adolescent Population

被引:62
作者
Sluyter, John D. [2 ]
Schaaf, David [2 ]
Scragg, Robert K. R. [1 ]
Plank, Lindsay D. [3 ]
机构
[1] Univ Auckland, Dept Epidemiol & Biostat, Auckland 1, New Zealand
[2] Univ Auckland, Dept Pacific Hlth, Auckland 1, New Zealand
[3] Univ Auckland, Dept Surg, Auckland 1, New Zealand
关键词
BIOELECTRICAL-IMPEDANCE ANALYSIS; BODY-MASS INDEX; PACIFIC-ISLAND CHILDREN; FAT-FREE MASS; OBESE WOMEN; EQUATIONS; MODEL; DXA; OVERWEIGHT; PERCENTAGE;
D O I
10.1038/oby.2009.166
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
The objective of this study was to validate an 8-electrode bioimpedance analysis (BIA(8)) device (BC-418; Tanita, Tokyo, Japan) for use in populations of European, Maori, Pacific Island, and Asian adolescents. Healthy adolescents (215 M, 216 F; 129 Pacific Island, 120 Asian, 91 Maori, and 91 European; age range 12-19 years) were recruited by purposive sampling of high schools in Auckland, New Zealand. Weight, height, sitting height, leg length, waist circumference, and whole-body impedance were measured. Fat mass (FM) and fat-free mass (FFM) derived from the BIA(8) manufacturer's equations were compared with measurements by dual-energy X-ray absorptiometry (DXA). DXA-measured FFM was used as the reference to develop prediction equations based on impedance. A double cross-validation technique was applied. BIA(8) underestimated FM by 2.06 kg (P < 0.0001) and percent body fat (%BF) by 2.84% (P < 0.0001), on average. However, BIA(8) tended to overestimate FM and %BF in lean and underestimate FM and % BF in fat individuals. Sex-specific equations developed showed acceptable accuracy on cross-validation. In the total sample, the best prediction equations were, for boys: FFM (kg) = 0.607 height (cm)(2)/impedance (Omega) + 1.542 age (y) + 0.220 height (cm) + 0.096 weight (kg) + 1.836 ethnicity (0 = European or Asian, 1 = Maori or Pacific) -47.547, R-2 = 0.93, standard error of estimate (SEE) = 3.09 kg; and, for girls: FFM (kg) = 0.531 height (cm)(2)/impedance (Omega) + 0.182 height (cm) + 0.096 weight (kg) + 1.562 ethnicity (0 = non-Pacific, 1 = Pacific) -15.782, R-2 = 0.91, SEE = 2.19 kg. In conclusion, equations for fatness estimation using BIA(8) developed for our sample perform better than reliance on the manufacturer's estimates. The relationship between BIA and body composition in adolescents is ethnicity dependent.
引用
收藏
页码:183 / 189
页数:7
相关论文
共 40 条
[11]   Bioelectrical impedance analysis models for prediction of total body water and fat-free mass in healthy and HIV-infected children and adolescents [J].
Horlick, M ;
Arpadi, SM ;
Bethel, J ;
Wang, J ;
Moye, J ;
Cuff, P ;
Pierson, RN ;
Kotler, D .
AMERICAN JOURNAL OF CLINICAL NUTRITION, 2002, 76 (05) :991-999
[12]   Evaluation of two foot-to-foot bioelectrical impedance analysers to assess body composition in overweight and obese adolescents [J].
Lazzer, S ;
Boirie, Y ;
Meyer, M ;
Vermorel, M .
BRITISH JOURNAL OF NUTRITION, 2003, 90 (05) :987-992
[13]   A CONCORDANCE CORRELATION-COEFFICIENT TO EVALUATE REPRODUCIBILITY [J].
LIN, LI .
BIOMETRICS, 1989, 45 (01) :255-268
[14]  
Lohman Timothy, 1989, Pediatr Exerc Sci, V1, P19, DOI 10.1123/pes.1.1.19
[15]   SOME COMMENTS ON CP [J].
MALLOWS, CL .
TECHNOMETRICS, 1973, 15 (04) :661-675
[16]   Relationship between measures of fatness, lipids and ethnicity in a cohort of adolescent boys [J].
Mehta, S ;
Mahajan, D ;
Steinbeck, KS ;
Bermingham, MA .
ANNALS OF NUTRITION AND METABOLISM, 2002, 46 (05) :192-199
[17]  
*MIN HLTH, 2004, PUBL HLTH INT OCC B, V24
[18]   Advanced dental maturation in New Zealand Maori and Pacific Island Children [J].
Moananui, Raymond Te ;
Kieser, Jules A. ;
Herbison, Peter ;
Liversidge, Helen M. .
AMERICAN JOURNAL OF HUMAN BIOLOGY, 2008, 20 (01) :43-50
[19]   Assessment of change in body fat percentage with DXA and eight-electrode BIA in centrally obese women [J].
Neovius, Martin ;
Udden, Joanna ;
Hemmingsson, Erik .
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE, 2007, 39 (12) :2199-2203
[20]   Bioelectrical impedance underestimates total and truncal fatness in abdominally obese women [J].
Neovius, Martin ;
Hemmingsson, Erik ;
Freyschuss, Bo ;
Udden, Joanna .
OBESITY, 2006, 14 (10) :1731-1738