Unlike BIS, MF-BIA devices typically measure impedance at 2-6 different frequencies and are unable to determine the pure resistance values at zero and De Lorenzo, Multicompartment model to assess body composition in professional water polo players, Journal of Sports Medicine and Physical Fitness, vol. In recent years[when?] Indeed, two studies found that low BIA/BIS-PhA corresponded to low CT- muscle mass (CT-MM) and muscle density in the critically ill [31,32]. 4, pp. The principle of BIA is that the different tissues in the body will act as conductors, semiconductors, or dielectrics (insulators). 25, no. In contrast, bone and adipose tissue are dielectric substances and are poor conductors [4]. Cunningham, or Katch--McArdle). 37. Accuracy. 885-892, 1998. Garlini LM, Alves FD, Kochi A, et al. There are several promising areas of BIA research concerning some of the most urgent clinical problems in intensive care. ", "Bioelectrical impedance analysis: population reference values for phase angle by age and sex", "Reliability of body fat measurement: Skinfold, bioelectrical impedance analysis and infrared", "Clinical detection of sarcopenic obesity by bioelectrical impedance analysis", The International Society for Electrical Bioimpedance, Bioimpedance Analysis Electronic Media Review, https://en.wikipedia.org/w/index.php?title=Bioelectrical_impedance_analysis&oldid=1151830472, Short description is different from Wikidata, All articles with vague or ambiguous time, Articles with unsourced statements from April 2023, Articles with unsourced statements from September 2019, Creative Commons Attribution-ShareAlike License 4.0, This page was last edited on 26 April 2023, at 14:22. The consequences of sudden fluid shifts on. A Dutch group recently developed and validated a formula to predict creatinine/urea clearance based on 24 h urine collection (currently the gold-standard in ICU) using serum creatinine and MF-BIA-BCM and ECW/TBW ratio, with good results [46]. Deurenberg et al. 4). However, there are several promising areas of research, concerning some of the most urgent clinical problems in intensive care, emphasizing the need to evaluate further the use and interpretation of bioimpedance in the intensive care setting. 8. The use of multiple frequencies would also distinguish intracellular and extracellular water.[22]. 58. This is possible simply because different bodily tissues (e.g. From the results of this assessment method, the manufacturer constructs an equation using the individual variables mentioned previously to determine what the body fat would be. de Jong LAA, Otten-Helmers AG, Spronk PE, van Kan HJM. M Azcue 1 ,, M Neuman , P Pencharz These equations will have an error rate when compared to the hydrostatic weighing method, and thus, this error is multiplied by the original error of the reference method to provide a body composition assessment that may be somewhat distant from the actual values reported using a four-compartment model. Nyboer and J. Similarly, the landmark Phase Angle Project showed that a combined multivariable score improved the discriminative power in predicting mortality, compared with PhA alone [22]. greater muscle mass, leaner, etc. Logically, increased ECW is associated with a lower BCM/FFM-ratio. Use of bioelectrical impedance analysis for the assessment of nutritional status in critically ill patients. Most equations to estimate glomerular filtration rate are based on serum creatinine measurement. BCM and fat-free mass provide potential use in estimation of metabolic rate, glomerular filtration rate, protein needs and pharmacokinetics. 9, pp. Bioelectrical impedance vector analysis in critically ill patients: a prospective, clinician-blinded investigation. 6. The primary area for future research in this area is clearly the need for validated BIA equations for athletes in a range of sports and with varying body composition. [19], In 1986, Kushner and Scholler published empirical equations using the impedance index, body weight, and gender. 27. Nevertheless, it is the 4-compartment model (4C) (DXA and MRI are acceptable alternatives) and not BIA that is regarded as the reference method in body composition analysis. The validity of using BIA to measure changes over time [17], In 1983, Nyober validated the use of whole body electrical impedance to assess body composition.[18]. (1988) [23] reported an underestimation of fat-free mass when assessing changes in body composition following weight loss. Ritz, A. Salle, M. Audran and V. Rohmer, Comparison of different methods to assess body composition of weight loss in obese and diabetic patients, Diabetes Research and Clinical Practice, vol. 40. In a retrospective post hoc analysis, including this study, these associations disappeared [41]. Kuchnia A, Earthman C, Teigen L, et al. What is BIS? Thibault R, Makhlouf AM, Mulliez A, et al. Dewitte A, Carles P, Joannes-Boyau O, et al. Hand-held BIA 5, pp. It is unclear how many frequencies would be needed for a BIA device to be considered a BIS device, however, the principles behind how the devices work are the same. Two groups studied agreement between CT-MM and BIA-SMM in the ICU. Highlight selected keywords in the article text. Fat mass was underestimated by 1.6 kg, whereas fat-free mass was overestimated by 1.8 kg. 5-12, 1999. This is done under the assumption that 73 % of the bodys fat-free mass is water and that this remains constant over time and between individuals. Therefore, BIA might be clinically useful to identify sarcopenic patients at risk for adverse outcome. 42, pp. 77, pp. A study comparing the accuracy of BIVA, versus the definition according to ESPEN in hospitalized patients, in predicting malnutrition, found that BIVA might be the superior method [38]. Wolters Kluwer Health, Inc. and/or its subsidiaries. Lambell KJ, Earthman CP, Tierney AC, et al. 33. Denneman N, Hessels L, Broens B, et al. 6, pp. Angles for future research will be indicated throughout this manuscript with an asterix () and are summarized in Table 1. Therefore, for this review, BIA will be used to denote all bioelectrical impedance assessments. 19, no. Therefore, if a person is more muscular there is a high chance that the person will also have more body water, which leads to lower impedance. Inclusion fees for patients in nutrition trials were paid to the local ICU research foundation. BIA is commonly used in dialysis patients to guide fluid management by calculating dry weight goals [11,44]. 12. quantities of fat mass and fat-free mass) by running a small electrical current through the body. Adequate dosing of renally excreted drugs is challenging in critically ill patients because of changes in kidney function. Furthermore, negative correlations have been observed between admission PhA and the length of ward stay, ICU stay and hospital stay, mechanical ventilation duration the APACHE-II score, and recently with the severity of disease of coronavirus disease 2019 (COVID-19) [15,16,1820]. R. Esco, M. S. Olson, H. N. Williford, S. N. Lizana and A. R. Russell, The accuracy of hand to hand bioelectrical impedance analysis in predicting body composition in college-age female athletes, Journal of Strength and Conditioning Research, vol. Evidence regarding other considerations to use and interpretation of BIA in the ICU setting are summarized in Table 2. WebFactors affecting bioelectrical impedance measurements in humans Eur J Clin Nutr. Bioelectrical impedance is the measure of impedance of the body. [2], Although the instruments are straightforward to use, careful attention to the method of use (as described by the manufacturer) should be given. R. Segal, J. Wang, B. Gutin, R. N. Pierson and T. Van Italie, Hydration and potassium content of lean body mass: effects of body fat, sex and age, American Journal of Clinical Nutrition, vol. The validity (the agreement between the true value and a measurement value) of body composition is key to determining the precision of BIA measurement, and its suitability for clinical use. As hand-held and leg-to-leg methods may not account for the resistance of the lower- or upper body, respectively, it is logical to assume that hand-to-foot measurements may better reflect whole-body composition than the alternatives. Age-related extracellular to total body water volume ratio (Ecv/TBW)--can it be used for dry weight determination in dialysis patients? Impedance is frequency sensitive; at low frequency the electric current flows preferentially through extracellular water (ECW) only while at high frequency the current can cross cell membranes and hence flows through total body water (TBW). Wolters Kluwer Health
D. van Marken Lichtenbelt, F. Hartgens, N. B. Vollaard, S. Ebbing and H. Kuipers, Body composition changes in bodybuilders: a method comparison, Medicine and Science in Sport and Exercise, vol. [20], However, empirical equations were only useful in predicting the average population's body composition and was inaccurate for medical purposes for populations with diseases. R. Moon, Body composition in athletes and sports nutrition: an examination of the bioimpedance analysis technique, European Journal of Clinical Nutrition, vol. Brain Dev 2019; 41:352358. P. Clarys, A. D. Martin and D. T. Drinkwater, Gross tissue masses in adult humans- data from 25 dissections, Human Biology, vol. Total body water (TBW) is then estimated through proportional equations. 50, pp. 28. Individual error rates were greater than at baseline, with BIA underestimating fat mass by 7.5 kg in some subjects. - The test can be administered repeatedly without adverse effects. 16. Furthermore, rapid wasting of muscle mass is a major clinical conundrum, as it is a strong independent predictor for morbidity, mortality, physical functioning and quality of life. BIA defines the water volumes using impedance and body height, upon which other body composition parameters are based. 417-424, 1986. Decreased PhA at ICU admission has been associated with hospital, 28-day, 90-day and 12-month mortality [6,1316]. WebWhat does bioelectrical impedance spectroscopy (BIS) measure? SM-BIA can provide additional values, such as the appendicular skeletal muscle mass (ASMM), the sum of the four limbs muscle masses. Does bioelectrical impedance analysis work? 1993;60:121-3. doi: 10.1007/978-1-4899-1268-8_27. modify the keyword list to augment your search. J. Saunders, J. E. Blevins and C. E. Broeder, Effects of hydration changes on bioelectrical impedance in endurance trained individuals, Medicine and Science in Sport and Exercise, vol. Samoni S, Vigo V, Resndiz LI, et al. Your message has been successfully sent to your colleague. A variety of single-frequency BIA analyzers then became commercially available, such as RJL Systems and its first commercialized impedance meter.