A practical guide to bioelectrical impedance analysis using the example of chronic obstructive pulmonary disease

Walter-Kroker, Anja; Kroker, Axel; Mattiucci-Guehlke, Muriel; Glaab, Thomas

doi:10.1186/1475-2891-10-35

Cited by 97 publications

(83 citation statements)

References 26 publications

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“…Bioelectrical impedance analysis is a method for estimating body composition by introducing the weight, height and waist circumference of each subject from the determined impedance a number of parameters [28,29,30]. …”

Section: Methodsmentioning

confidence: 99%

Ultrasonographic Assessment of the Diaphragm in Chronic Obstructive Pulmonary Disease Patients: Relationships with Pulmonary Function and the Influence of Body Composition - A Pilot Study

et al. 2014

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Background: Skeletal muscle weakness with loss of fat-free mass (FFM) is one of the main systemic effects of chronic obstructive pulmonary disease (COPD). The diaphragm is also involved, leading to disadvantageous conditions and poor contractile capacities. Objectives: We measured the thickness of the diaphragm (TD) by ultrasonography to evaluate the relationships between echographic measurements, parameters of respiratory function and body composition data. Methods: Thirty-two patients (23 males) underwent (1) pulmonary function tests, (2) echographic assessment of TD in the zone of apposition at various lung volumes, i.e. TD at residual volume (TDRV), TD at functional residual capacity (TDFRC) and TD at total lung capacity (TDTLC), and (3) bioelectrical body impedance analysis. The BMI and the BODE (BMI-Obstruction-Dyspnea-Exercise) index values were reported. Results: TDRV, TDFRC and TDTLC measured 3.3, 3.6 and 6 mm, respectively, with good intraobserver reproducibility (0.97, 0.97 and 0.96, respectively). All the TDs were found to be related to FFM, with the relationship being greater for TDFRC (r² = 0.39 and p = 0.0002). With regard to lung volumes, inspiratory capacity (IC) was found to be closely related to TDTLC (r² = 0.42 and p = 0.0001). The difference between TDTLC and TDRV, as a thickening value (TDTLCRV), was closely related to FVC (r² = 0.34 and p = 0.0004) and to air-trapping indices (RV/TLC, FRC/TLC and IC/TLC): the degree of lung hyperinflation was greater and the TDTLCRV was less. Finally, we found a progressive reduction of both thicknesses and thickenings as the severity of IC/TLC increased, with a significant p value for the trend in both analyses (p = 0.02). Conclusions: Ultrasonographic assessment of the diaphragm could be a useful tool for studying disease progression in COPD patients, in terms of lung hyperinflation and the loss of FFM.

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Section: Methodsmentioning

confidence: 99%

Ultrasonographic Assessment of the Diaphragm in Chronic Obstructive Pulmonary Disease Patients: Relationships with Pulmonary Function and the Influence of Body Composition - A Pilot Study

et al. 2014

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“…BIVA can be considered an integrated component of BIA measurement, and is a simple and quick method for assessing fl uid status and body cell mass (84) . It can also be used as a quality control measure for correct analysis of BIA results (85) .…”

Section: Bio-electrical Impedance Vector Analysis (Biva)mentioning

confidence: 99%

The emerging role of biomarkers and bio-impedance in evaluating hydration status in patients with acute heart failure

Somma¹,

Navarin²,

Giordano³

et al. 2012

Clinical Chemistry and Laboratory Medicine (CCLM)

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The quantitative and qualitative estimation of total body fl uid content has proven to be crucial for both diagnosis and prognosis assessment in patients with heart failure. The aim of this review is to summarize the current techniques for assessing body hydration status as well as the principal biomarkers associated with acute heart failure (AHF). Although clinical history, physical examination and classical imaging techniques (e.g., standard radiography and echocardiography) still represent the cornerstones, novel and promising tools, such as biomarkers and bio-electrical impedance are achieving an emerging role in clinical practice for the assessment of total body fl uid content. In the acute setting, the leading advantages of these innovative methods over device are represented by the much lower invasiveness and the reasonable costs, coupled with an easier and faster application. This article is mainly focused on AHF patients, not only because the overall prevalence of this disease is dramatically increasing worldwide, but also because it is well-known that their fl uid overload has a remarkable diagnostic and prognostic significance. It is thereby conceivable that the bio-electrical vector analysis (BIVA) coupled with laboratory biomarkers might achieve much success in AHF patient management in the future, especially for assisting diagnosis, risk stratifi cation, and therapeutic decision-making.

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“…This is due to its multiple advantages: ease of use, noninvasive, minor technician error, relatively cheap, good degree of reproducibility, inter-observer reproducibility, and safety of operation [4]. However, there are variable and contradictory results obtained by BIA [5] which calls into question its accuracy and precision.…”

Section: Introductionmentioning

confidence: 99%

Bioelectrical impedance analysis (BIA): a proposal for standardization of the classical method in adults

González-Correa

Caicedo-Eraso

2012

J. Phys.: Conf. Ser.

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Abstract:The accuracy of BIA measurements is limited by different sources of error such as physical model, cross sectional area, ethnicity, body hydration, age and level of body fat among other variables. Equation for each population is required as they can produce overestimation when manufacturer's equations are used. The classical measurements hand to foot has shown better correlation against hydrodensitometry than foot to foot or hand to hand. However there is a lack for an accepted standard of BIA procedures. This is compounded when there is not a good report of the BIA study's methodology; hence the comparability between the results is poor and reduces the reliability of the method. Perhaps, standardization of methods would be the first step for BIA studies to move forward and subsequently improve its accuracy. Standardized procedures could also minimize the impact of these variables on studies results. The aim of this study was to propose a protocol as a checklist to standardize BIA procedures and produce comparable results from future studies performed with the classic hand-foot configuration in adults.

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A practical guide to bioelectrical impedance analysis using the example of chronic obstructive pulmonary disease

Cited by 97 publications

References 26 publications

Ultrasonographic Assessment of the Diaphragm in Chronic Obstructive Pulmonary Disease Patients: Relationships with Pulmonary Function and the Influence of Body Composition - A Pilot Study

Ultrasonographic Assessment of the Diaphragm in Chronic Obstructive Pulmonary Disease Patients: Relationships with Pulmonary Function and the Influence of Body Composition - A Pilot Study

The emerging role of biomarkers and bio-impedance in evaluating hydration status in patients with acute heart failure

Bioelectrical impedance analysis (BIA): a proposal for standardization of the classical method in adults

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