scholarly journals Bioelectrical impedance analysis models for prediction of total body water and fat-free mass in healthy and HIV-infected children and adolescents

2002 ◽  
Vol 76 (5) ◽  
pp. 991-999 ◽  
Author(s):  
Mary Horlick ◽  
Stephen M Arpadi ◽  
James Bethel ◽  
Jack Wang ◽  
Jack Moye ◽  
...  
Keyword(s):  
Children And Adolescents ◽  
Total Body Water ◽  
Bioelectrical Impedance Analysis ◽  
Bioelectrical Impedance ◽  
Impedance Analysis ◽  
Body Water ◽  
Fat Free Mass ◽  
Total Body ◽  
Analysis Models

scholarly journals Total body water and fat-free mass: evaluation of equations based on bioelectrical impedance analysis in infants and young children in India

2010 ◽  
Vol 104 (2) ◽  
pp. 256-264 ◽  
Author(s):  
Bandana Sen ◽  
Dilip Mahalanabis ◽  
Anura V. Kurpad ◽  
Saijuddin Shaikh ◽  
Kaushik Bose
Keyword(s):  
Total Body Water ◽  
Urban Poor ◽  
Bioelectrical Impedance Analysis ◽  
Reference Method ◽  
Bioelectrical Impedance ◽  
Impedance Analysis ◽  
Postnatal Growth ◽  
Body Water ◽  
Fat Free Mass ◽  
Total Body

The association of early postnatal growth with diseases in adults such as hypertension, type 2 diabetes and CHD has generated interest in studying postnatal growth. Bioelectrical impedance analysis (BIA) is a useful measure to estimate total body water (TBW) and fat-free mass (FFM). We evaluated three published equations (Fjeld et al. (Pediatr Res (1990) 27, 98–102), Bocage (MSc Thesis (1988) University of West Indies) and Kushner et al. (Am J Clin Nutr (1992) 56, 835–839) to measure TBW and derived FFM based on BIA, using 2H2O dilution as a reference method for suitability in infants in India. In a cross-sectional study in seventy-eight apparently healthy infants aged 6–24 months from the urban poor attending an immunisation clinic at a hospital in Kolkata, we measured their length to the nearest 0·1 cm, weight to the nearest 10 g, resistance at 50 kHz using BIA and TBW using 2H2O dilution. TBW was derived using three published BIA-based equations and compared with TBW using 2H2O dilution. Based on the BIA equations of Fjeld et al., Bocage and Kushner et al., the mean TBW values were 2·46 % (P < 0·001), 4·62 % (P < 0·001) and 9·50 % (P < 0·001) lower than the reference 2H2O method, respectively. All three published BIA-based equations consistently underestimated the TBW and FFM and appeared inadequate for studying infants in India. The equation described by Fjeld et al. gave the smallest deviation from the reference method and may be used for field studies. New equations based on population-specific data are desirable for a more precise measure of TBW.

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