scholarly journals Assessment of body composition in normal weighing and obese subjects by the bioelectrical impedance method

1995 ◽  
Vol 41 (4) ◽  
pp. 19-21
Author(s):  
L. I. Bershtein ◽  
Ye. V. Tsyrlina ◽  
Ye. B. Samoilova ◽  
I. G. Kovalenko
Keyword(s):  
Body Composition ◽  
Urinary Excretion ◽  
Personal Computer ◽  
Lean Mass ◽  
Subcutaneous Fat ◽  
Bioelectrical Impedance ◽  
Whole Body ◽  
Impedance Method ◽  
Endocrine Diseases ◽  
Obese Subjects

Body composition (lean mass, fat content) was assessed in 32 women aged 21 to 78 by measuring the thickness of subcutaneous fat in 4 typical sites and urinary excretion of creatinine, and estimating whole-body bioelectrical impedance (BI) by tetrapolar analyzer attached to personal computer. Results of BI measurements better correlated with body composition values assessed from the thickness of subcutaneous fat (particularly so in subjects aged under 50 and with Broca’s index from 0 to +19%). Hence, BI assessment may be used to evaluate body composition in patients with various endocrine diseases before the treatment and to monitor its efficacy in some diseases.

scholarly journals Validation of a bioelectrical impedance analysis system for body composition assessment in patients with COPD

2018 ◽  
Vol 44 (4) ◽  
pp. 315-320 ◽  
Author(s):  
Fernanda Rodrigues Fonseca ◽  
Manuela Karloh ◽  
Cintia Laura Pereira de Araujo ◽  
Cardine Martins dos Reis ◽  
Anamaria Fleig Mayer
Keyword(s):  
Body Composition ◽  
Lean Mass ◽  
Bioelectrical Impedance Analysis ◽  
Mineral Content ◽  
Bioelectrical Impedance ◽  
Impedance Analysis ◽  
Fat Free Mass ◽  
Whole Body ◽  
Body Composition Assessment ◽  
Contact Electrode

ABSTRACT Objective: To investigate the validity of an eight-contact electrode bioelectrical impedance analysis (BIA) system within a household scale for assessing whole body composition in COPD patients. Methods: Seventeen patients with COPD (mean age = 67 ± 8 years; mean FEV1 = 38.6 ± 16.1% of predicted; and mean body mass index = 24.7 ± 5.4 kg/m2) underwent dual-energy X-ray absorptiometry (DEXA) and an eight-contact electrode BIA system for body composition assessment. Results: There was a strong inter-method correlation for fat mass (r = 0.95), fat-free mass (r = 0.93), and lean mass (r = 0.93), but the correlation was moderate for bone mineral content (r = 0.73; p < 0.01 for all). In the agreement analysis, the values between DEXA and the BIA system differed by only 0.15 kg (−6.39 to 6.70 kg), 0.26 kg (−5.96 to 6.49 kg), −0.13 kg (−0.76 to 0.50 kg), and −0.55 kg (−6.71 to 5.61 kg) for fat-free mass, lean mass, bone mineral content, and fat mass, respectively. Conclusions: The eight-contact electrode BIA system showed to be a valid tool in the assessment of whole body composition in our sample of patients with COPD.

Prediction of Whole-Body and Segmental Body Composition by Bioelectrical Impedance in Morbidly Obese Subjects

2011 ◽  
Vol 22 (4) ◽  
pp. 587-593 ◽  
Author(s):  
Amanda Jiménez ◽  
Wilberto Omaña ◽  
Lílliam Flores ◽  
María José Coves ◽  
Diego Bellido ◽  
...  
Keyword(s):  
Body Composition ◽  
Bioelectrical Impedance ◽  
Whole Body ◽  
Morbidly Obese ◽  
Segmental Body ◽  
Obese Subjects ◽  
Segmental Body Composition

scholarly journals Measuring body composition using the bioelectrical impedance method can predict the outcomes of gemcitabine-based chemotherapy in patients with pancreatobiliary tract cancer

2015 ◽  
Vol 10 (6) ◽  
pp. 3535-3541 ◽  
Author(s):  
MAMI MURAMATSU ◽  
AYA TSUCHIYA ◽  
SEIKO OHTA ◽  
YUKIE IIJIMA ◽  
MIYUKI MARUYAMA ◽  
...  
Keyword(s):  
Body Composition ◽  
Bioelectrical Impedance ◽  
Impedance Method ◽  
Tract Cancer

Body Composition, Dietary Intake, and Iron Status of Female Collegiate Swimmers and Divers

2006 ◽  
Vol 16 (3) ◽  
pp. 281-295 ◽  
Author(s):  
Heidi L. Petersen ◽  
C. Ted Peterson ◽  
Manju B. Reddy ◽  
Kathy B. Hanson ◽  
James H. Swain ◽  
...  
Keyword(s):  
Body Composition ◽  
Dietary Intake ◽  
Body Fat ◽  
Lean Mass ◽  
Iron Status ◽  
Dietary Quality ◽  
Whole Body ◽  
Vitamin B ◽  
Percentage Body Fat ◽  
X Ray

This study determined the effect of training on body composition, dietary intake, and iron status of eumenorrheic female collegiate swimmers (n = 18) and divers (n = 6) preseason and after 16 wk of training. Athletes trained on dryland (resistance, strength, fexibility) 3 d/wk, 1.5 h/d and in-water 6 d/wk, nine, 2-h sessions per week (6400 to 10,000 kJ/d). Body-mass index (kg/m2; P = 0.05), waist and hip circumferences (P ≤ 0.0001), whole body fat mass (P = 0.0002), and percentage body fat (P ≤ 0.0001) decreased, whereas lean mass increased (P = 0.028). Using dual-energy X-ray absorptiometry, we found no change in regional lean mass, but fat decreased at the waist (P = 0.0002), hip (P = 0.0002), and thigh (P = 0.002). Energy intake (10,061 ± 3617 kJ/d) did not change, but dietary quality improved with training, as refected by increased intakes of fber (P = 0.036), iron (P = 0.015), vitamin C (P = 0.029), vitamin B-6 (P = 0.032), and fruit (P = 0.003). Iron status improved as refected by slight increases in hemoglobin (P = 0.046) and hematocrit (P = 0.014) and decreases in serum transferrin receptor (P ≤ 0.0001). Studies are needed to further evaluate body composition and iron status in relation to dietary intake in female swimmers.

Comparison between whole-body and segmental bioelectrical impedance for body composition

2021 ◽  
Vol 46 ◽  
pp. S603
Author(s):  
N.T. Bellafronte ◽  
L. Vega-Piris ◽  
G.B. Cuadrado ◽  
P.G. Chiarello
Keyword(s):  
Body Composition ◽  
Bioelectrical Impedance ◽  
Whole Body ◽  
Segmental Bioelectrical Impedance

scholarly journals Reference distribution of the bioelectrical impedance vector in healthy term newborns

2010 ◽  
Vol 104 (10) ◽  
pp. 1508-1513 ◽  
Author(s):  
Ana V. B. Margutti ◽  
Jacqueline P. Monteiro ◽  
José S. Camelo
Keyword(s):  
Body Composition ◽  
Bioelectrical Impedance ◽  
Cross Sectional Study ◽  
Vector Analysis ◽  
Whole Body ◽  
General Distribution ◽  
Reference Distribution ◽  
Cross Sectional ◽  
Term Newborns ◽  
Impedance Vector

Bioelectrical impedance vector analysis (BIVA) is a new method that is used for the routine monitoring of the variation in body fluids and nutritional status with assumptions regarding body composition values. The aim of the present study was to determine bivariate tolerance intervals of the whole-body impedance vector and to describe phase angle (PA) values for healthy term newborns aged 7–28 d. This descriptive cross-sectional study was conducted on healthy term neonates born at a low-risk public maternity. General and anthropometric neonatal data and bioelectrical impedance data (800 μA–50 kHz) were obtained. Bivariate vector analysis was conducted with the resistance–reactance (RXc) graph method. The BIVA software was used to construct the graphs. The study was conducted on 109 neonates (52·3 % females) who were born at term, adequate for gestational age, exclusively breast-fed and aged 13 (sd 3·6) d. We constructed one standard, reference, RXc-score graph and RXc-tolerance ellipses (50, 75 and 95 %) that can be used with any analyser. Mean PA was 3·14 (sd 0·43)° (3·12 (sd 0·39)° for males and 3·17 (sd 0·48)° for females). Considering the overlapping of ellipses of males and females with the general distribution, a graph for newborns aged 7–28 d with the same reference tolerance ellipse was defined for boys and girls. The results differ from those reported in the literature probably, in part, due to the ethnic differences in body composition. BIVA and PA permit an assessment without the need to know body weight and the prediction error of conventional impedance formulas.

scholarly journals Cardiorespiratory Fitness May Influence Metabolic Inflexibility During Exercise in Obese Persons

2019 ◽  
Vol 104 (12) ◽  
pp. 5780-5790 ◽  
Author(s):  
Francisco J Amaro-Gahete ◽  
Guillermo Sanchez-Delgado ◽  
Ignacio Ara ◽  
Jonatan R. Ruiz
Keyword(s):  
Cardiorespiratory Fitness ◽  
Lean Mass ◽  
Normal Weight ◽  
Whole Body ◽  
Graded Exercise ◽  
Obese Subjects ◽  
Maximal Fat Oxidation ◽  
Metabolic Inflexibility ◽  
Overweight Subjects ◽  
Body Lean Mass

Abstract Context We examined whether obese individuals have a reduced maximal fat oxidation (MFO) and the intensity that elicit MFO (Fatmax) compared with normal weight and overweight persons, taking into account their level of cardiorespiratory fitness. Methods The study subjects were 138 sedentary adults (87 women) aged 30.1 ± 13.6 years. Based on their body mass index, subjects were categorized as being of normal weight (n = 66), overweight (n = 48), or obese (n = 24). MFO and Fatmax were determined for all subjects by indirect calorimetry, using a walking graded exercise test. MFO was expressed in absolute terms (g/min) and relative to whole-body lean mass (mg/kgleanmass/min). Cardiorespiratory fitness was assessed via a maximal treadmill test. Results No differences in absolute MFO and Fatmax values were seen between the obese, normal weight, and overweight subjects (all P > 0.2), although after adjusting for cardiorespiratory fitness, the obese subjects returned significantly higher values than did their normal weight and overweight counterparts (all P < 0.03). However, when expressed with respect to lean mass, the MFO of the normal weight subjects was significantly greater than that of the overweight and obese subjects, independent of age, sex, or cardiorespiratory fitness. Conclusions Obese individuals have higher absolute MFO values when cardiorespiratory fitness is taken into account, but when expressed with respect to lean mass, normal weight individuals show a greater capacity to oxidize fat during exercise per unit of metabolically active tissue independent of age, sex, or cardiorespiratory fitness. These findings suggest that obese individuals may suffer from metabolic inflexibility during exercise.

MO047COMPARISON BETWEEN DUAL-ENERGY X-RAY ABSORPTIOMETRY AND BIOELECTRICAL IMPEDANCE FOR BODY COMPOSITION MEASUREMENTS IN ADULTS WITH CHRONIC KIDNEY DISEASE

2020 ◽  
Vol 35 (Supplement_3) ◽  
Author(s):  
Natália Tomborelli Bellafronte ◽  
Lorena Vega-Piris ◽  
Paula Garcia Chiarello ◽  
Guillermina Barril Cuadrado
Keyword(s):  
Chronic Kidney Disease ◽  
Body Composition ◽  
Peritoneal Dialysis ◽  
Renal Transplantation ◽  
Bioelectrical Impedance ◽  
Total Sample ◽  
Dual Energy ◽  
Error Tolerance ◽  
Whole Body ◽  
X Ray

Abstract Background and Aims Chronic kidney disease (CKD) patients frequently have an altered body composition driven by metabolic disorders from the uremic syndrome that usually leads to increased protein catabolism, with obesity and muscle impairment being common conditions associated with worse clinical prognosis and high mortality rates. Therefore, with increased mortality and disability rates of CKD patients in the last quarter of a century and the association of a poor body composition with low survival, routine and longitudinal assessment of body composition could improve clinical outcomes. Due to limited availability of reference methods to assess nutritional status, alternative methods are used. In view of the above, our goal was to evaluate the agreement between multifrequency bioelectrical impedance spectroscopy (BIS) and Dual-energy X-ray Absorptiometry (DXA) for assessment of body composition in CKD. Method Cross-sectional and prospective analyses by DXA (Hologic, GE®) and BIS (BCM, Fresenius Medical Care®) in whole-body (BISWB) and segmental (BISSEG) protocols were performed in CKD non-dialysis-dependent, hemodialysis and peritoneal dialysis (for at least 3 months), and renal transplantation (for at least 6 months) adult (18 ≤ age ≤ 60 years old) patients. Measurements were performed consecutively by the same professional after an 8-hour fast, drainage of the peritoneal dialysate and just after the midweek hemodialysis session. Intraclass correlation coefficient (ICC) and Bland-Altman plots were evaluated for agreement analysis in group and individual levels, respectively; linear regression analysis was performed for bias assessment and development of new equations; ROC curve was constructed for diagnosis of inadequate error tolerance (DXA - BIS &gt; ± 2kg). Results A total of 266 patients were included: 137 men (M) and 129 women (W); 81 were in non-dialysis-dependent treatment, 83 in hemodialysis, 24 in peritoneal dialysis, and 80 had renal transplantation. Total sample had a mean age of 47 ± 10 years old. CKD was secondary to systemic arterial hypertension in 29% of the total sample, to glomerulonephritis in 25%, to diabetes mellitus in 10%, to polycystic kidney in 7%, to glomerulosclerosis and systemic syndromes in 8%, and to other causes and unknown etiology in 20%. Fourteen patients (4 M and 10 W) were in automated and 9 (4 M and 5 W) in continuous ambulatory PD. KTx was by living donor in 18 (14 M and 4 W) and by deceased donor in 63 (34 M and 29 W) patients. The agreement with DXA was greater for BISWB than BISSEG; for fat mass (FM) (ICC in M = 0.89; ICC in W = 0.93) than for fat free mass (FFM) (ICC in M = 0.57; ICC in W = 0.52). Bland-Altman plots showed high limits of agreement (FFM: from -9.51 to 15.64kg; FM: from -7.71 to 7.32kg) with greater bias for FFM as muscular mass increases and for FM in extremes of body fat. The agreement was lower when using the prospective data (body change analysis) (ICC for FFM in M = 0.20; ICC for FFM in W = 0.49; ICC for FM in M = 0.46; ICC for FM in W = 0.58). The factors that interfered in bias between methods were extra to intracellular water ratio (ECW/ICW), body mass index, fat mass index, waist circumference, resistance and reactance (adjusted r2 for FFM = 0.90; r2 for FM = 0.87). FFM had poorer agreement in the last tertile of ECW/ICW sample (ICC in M = 0.69, 0.68 and 0.51; ICC in W = 0.71, 0.74 and 0.38 for first, second and third tertiles, respectively). An ECW/ICW cut-off point of &gt; 0.725 for inadequate error tolerance was determined. New prediction equations for FFM (r2 = 0.91) and FM (r2 = 0.89) presented adequate error tolerance in 55% and 63% in the validation sample compared to 30% and 39% of the original equation, respectively. Conclusion For body composition evaluation in CKD, BIS applied using the whole-body protocol, in normal hydration CKD patients is as reliable as DXA; BIS must be used with caution among overhydrated patients with ECW/ICW &gt; 0.725. The newly developed equations are indicated for greater precision.

scholarly journals Body composition in dancers: the bioelectrical impedance method

2000 ◽  
pp. 228 ◽  
Author(s):  
MARY YANNAKOULIA ◽  
ANTONIOS KERAMOPOULOS ◽  
NIKOLAOS TSAKALAKOS ◽  
ANTONIA-LEDA MATALAS
Keyword(s):  
Body Composition ◽  
Bioelectrical Impedance ◽  
Impedance Method
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