Phase angle and mortality: a systematic review

Garlini, Luíza Matos; Alves, Francisco José dos Santos; Ceretta, Luciane Bisognin; Perry, Ingrid Schweigert; Souza, Gabriela Corrêa; Clausell, Nadine Oliveira

doi:10.1038/s41430-018-0159-1

Cited by 148 publications

(106 citation statements)

References 55 publications

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“…The resistance (R) arises from body fluids, i.e., extra and intracellular fluids behave as resistive components and resistance is inversely proportional to fluid volume and Reactance (Xc) arises from cell membranes [8]. PhA has been studied as an indicator of nutritional status and disease prognosis, mortality and cellular vitality [10,11]. Its assessment may be valuable for coaches, physicians, nutritionists, and exercise physiologists to provide specific recommendations to improve athletic performance and to avoid compromising health status.…”

Section: Introductionmentioning

confidence: 99%

“…However, the authors did not explore the magnitude of the correlation between raw BI parameters and the water compartments considering the potential impact of body composition. Indeed, the PhA is associated with fat free mass (FFM) and fat mass (FM) and therefore, these variables should be accounted for when exploring the association between this BI marker and fluid-related compartments [10]. However, this analysis is yet to be determined.…”

Section: Introductionmentioning

confidence: 99%

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The Predictive Role of Raw Bioelectrical Impedance Parameters in Water Compartments and Fluid Distribution Assessed by Dilution Techniques in Athletes

Francisco

Matias

Santos

et al. 2020

IJERPH

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The aims of this study were to analyze the usefulness of raw bioelectrical impedance (BI) parameters in assessing water compartments and fluid distribution in athletes. A total of 202 men and 71 female athletes were analyzed. Total body water (TBW) and extracellular water (ECW) were determined by dilution techniques, while intracellular water (ICW) was calculated. Fluid distribution was calculated as the ECW/ICW ratio (E:I). Phase angle (PhA), resistance (R) and reactance (Xc) were obtained through BI spectroscopy using frequency 50kHz. Fat (FM) and fat-free mass (FFM) were assessed by dual-energy X-ray absorptiometry. After adjusting for height, FM, FFM, age and sports category we observed that: PhA predicted ICW (females: β = 1.62, p < 0.01; males: β = 2.70, p < 0.01) and E:I (males and females: β = −0.08; p < 0.01); R explained TBW (females: β = −0.03; p < 0.01; males: β = −0.06; p < 0.01) and ECW (females: β = –0.02, p < 0.01; males: β = −0.03, p < 0.01) and ICW (females: β = –0.01, p < 0.053; males: β = –0.03 p < 0.01); and Xc predicted ECW (females: β = −0.06, p < 0.01; males: β = −0.12, p < 0.01). A higher PhA is a good predictor of a larger ICW pool and a lower E:I, regardless of body composition, age, height, and sports category. Lower R is associated with higher water pools whereas ECW expansion is explained by lower Xc. Raw BI parameters are useful predictors of total and extracellular pools, cellular hydration and fluid distribution in athletes.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Predictive Role of Raw Bioelectrical Impedance Parameters in Water Compartments and Fluid Distribution Assessed by Dilution Techniques in Athletes

Francisco

Matias

Santos

et al. 2020

IJERPH

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“…Ein Rückgang der fettfreien Masse oder der metabolisch aktiven Muskelzellen kann frühzeitig erkannt und die Integrität der Zellmembranen anhand des sogenannten Phasenwinkels überprüft werden [26,27]. Dieser gilt damit als prognostischer Marker bei chronischen Erkrankungen, Entzündungen oder auch Unterernährung [28,29]. Erste Vergleiche der BIA-Ergebnisse zum prozentualen Körperfettanteil mit den Ergebnissen einer Studie aus der Schweiz mit Teilnehmenden ohne Vorerkrankungen zeigen Unterschiede auf.…”

Section: Bmi Und üBergewichtunclassified

Anthropometrische Messungen in der NAKO Gesundheitsstudie – mehr als nur Größe und Gewicht

Fischer

Sedlmeier

Hartwig

et al. 2020

Bundesgesundheitsbl

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ZusammenfassungÜbergewicht und Adipositas sind bedeutende Risikofaktoren für verschiedene Erkrankungen. Als Maß zu ihrer Bestimmung wurde in früheren Studien meist nur der Body-Mass-Index (BMI) verwendet. Der BMI ist allerdings ein Marker, der den Einfluss auf das Krankheitsrisiko nur unzureichend erfasst. In groß angelegten, bevölkerungsbasierten Studien besteht daher ein vordringlicher Bedarf, verbesserte Messmethoden der Körperzusammensetzung und -fettverteilung einzusetzen.Der vorliegende Beitrag stellt die in der NAKO (Nationale Kohorte) Gesundheitsstudie eingesetzten Messverfahren zur Beschreibung von Körperzusammensetzung und -fettverteilung und die ersten deskriptiven Ergebnisse vor. Diese beziehen sich auf die Daten zur Halbzeit der Basiserhebung, welche 101.817 Teilnehmende einschließt, die in 18 Studienzentren in Deutschland zwischen März 2014 und März 2017 untersucht worden sind. Die anthropometrischen Messungen umfassten Körpergewicht, Körpergröße und -umfänge, bioelektrische Impedanzanalyse (BIA), Sonographie des Abdominalfettes, 3‑D-Bodyscanner und Magnetresonanztomographie.Die Analyse des BMI zeigte, dass 46,2 % der Männer sowie 29,7 % der Frauen übergewichtig und 23,5 % der Männer und 21,2 % der Frauen adipös waren. Frauen wiesen im Mittel in fast allen Altersgruppen eine höhere Schichtdicke an subkutanem Fettgewebe auf als Männer. Die mittlere Schichtdicke des viszeralen Fettgewebes lag hingegen bei den Männern in allen Altersgruppen über den Werten der Frauen und stieg bei beiden Geschlechtern über die Altersgruppen kontinuierlich an.Die umfassenden Daten über die Körperfettverteilung und -zusammensetzung ermöglichen es zukünftig, den Einfluss von Übergewicht und Adipositas auf die Entstehung von chronischen Erkrankungen im Detail zu analysieren.

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“…[5][6][7] Therefore, distinguishing lean and fat mass allows an adequate evaluation of the nutritional status in individuals presenting high values of BMI. [19][20][21] The use of BIA is recommended for healthy subjects and patients with stable water and electrolytes, [16][17][18] including renal transplant recipients (RTR). [16][17][18] Bioelectrical impedance analysis uses alternating electric current to generate two raw parameters: resistance (R), which represents the pure opposition to the electrical flow, and reactance (Xc), representing the resistive effect due to capacitance produced by tissue interfaces and cell membranes.…”

mentioning

confidence: 99%

“…Additionally, validated and specific predictive equations using R and/ or Xc values provide accurate estimates of body fat, fat-free mass, BCM, and total body water. [19][20][21] The use of BIA is recommended for healthy subjects and patients with stable water and electrolytes, [16][17][18] including renal transplant recipients (RTR). 22,23 Renal transplantation is the treatment of choice for most patients with end-stage chronic kidney disease.…”

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confidence: 99%

High abdominal adiposity and low phase angle in overweight renal transplant recipients

Ferreira

Silva

Costa

et al. 2019

Clinical Transplantation

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Obesity is associated with increased risk of cardiovascular disease (CVD). Body mass index (BMI) is the most used parameter for obesity screening. However, the evaluation of CVD risk in overweight individuals should include the assessment of body fat distribution and body composition. Renal transplant recipients (RTR) have a high CVD risk and frequently present weight gain and loss of lean mass. The aim of this study was to evaluate body fat distribution and body composition in overweight RTR. This cross‐sectional study was conducted with 86 RTR and 86 hypertensive individuals (comparison group, CG) presenting BMI 25‐35 Kg/m2 and 45‐70 years. Anthropometric evaluation included BMI, waist circumference, waist‐to‐height ratio, and a body shape index. Body composition was evaluated with bioelectrical impedance analysis (BIA). Glomerular filtration rate was estimated (eGFR) by CKD‐EPI equation. RTR group (RTRG) and CG presented similar age and BMI. RTRG when compared to CG presented lower percentage of women and eGFR; higher central adiposity; and lower values of reactance, intracellular water, body cell mass and phase angle, more consistently observed in women. This study suggests that overweight RTR present higher abdominal adiposity and impairment in BIA parameters that are sensitive indicators of impaired membrane integrity, water distribution, and body cell mass.

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Phase angle and mortality: a systematic review

Abstract: Phase angle seems to be a good indicator for mortality in many clinical situations and can be used in screening individuals prone to this outcome.

Cited by 148 publications

References 55 publications

The Predictive Role of Raw Bioelectrical Impedance Parameters in Water Compartments and Fluid Distribution Assessed by Dilution Techniques in Athletes

The Predictive Role of Raw Bioelectrical Impedance Parameters in Water Compartments and Fluid Distribution Assessed by Dilution Techniques in Athletes

Anthropometrische Messungen in der NAKO Gesundheitsstudie – mehr als nur Größe und Gewicht

High abdominal adiposity and low phase angle in overweight renal transplant recipients

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