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Acute Fluid Intake Impacts Assessment of Body Composition via Bioelectrical Impedance Analysis : A Randomized, Controlled Crossover Pilot Trial

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00007568
URN to cite this document: urn:nbn:de:bvb:703-epub-7568-1

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Schierbauer, Janis ; Günther, Svenja ; Haupt, Sandra ; Zimmer, Rebecca T. ; Herz, Daniel ; Voit, Thomas ; Zimmermann, Paul ; Wachsmuth, Nadine ; Aberer, Felix ; Moser, Othmar:
Acute Fluid Intake Impacts Assessment of Body Composition via Bioelectrical Impedance Analysis : A Randomized, Controlled Crossover Pilot Trial.
In: Metabolites. Vol. 13 (2023) Issue 4 . - 473.
ISSN 2218-1989
DOI der Verlagsversion: https://doi.org/10.3390/metabo13040473

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Abstract

Bioelectrical impedance analysis (BIA) has proven to be particularly useful due to its inexpensive and rapid assessment of total body water and body density. However, recent fluid intake may confound BIA results since equilibration of fluid between intra- and extracellular spaces may take several hours and furthermore, ingested fluids may not be fully absorbed. Therefore, we aimed to evaluate the impact of different fluid compositions on the BIA. A total of eighteen healthy individuals (10 females, mean ± SD age of 23.1 ± 1.8 years) performed a baseline measurement of body composition before they consumed isotonic 0.9% sodium-chloride (ISO), 5% glucose (GLU) or Ringer (RIN) solutions. During the visit of the control arm (CON), no fluid was consumed. Further impedance analyses were conducted every 10 min after the fluid consumption for 120 min. We found statistically significant interactions between the effects of solution ingestion and time for intra- (ICW, p < 0.01) and extracellular water (ECW, p < 0.0001), skeletal muscle mass (SMM, p < 0.001) and body fat mass (FM, p < 0.01), respectively. Simple main effects analysis showed that time had a statistically significant effect on changes in ICW (p < 0.01), ECW (p < 0.01), SMM (p < 0.01) and FM (p < 0.01), while fluid intake did not have a significant effect. Our results highlight the importance of a standardized pre-measurement nutrition, with particular attention to hydration status when using a BIA for the evaluation of body composition.

Further data

Item Type: Article in a journal
Keywords: sodium chloride; Ringer; glucose; electrolytes; intracellular water; extracellular water; skeletal muscle mass; fat mass; visceral fat
DDC Subjects: 600 Technology, medicine, applied sciences > 610 Medicine and health
Institutions of the University: Faculties > Faculty of Cultural Studies > Department of Sport Science > Chair Exercise Physiology > Chair Exercise Physiology - Univ.-Prof. Dr. Othmar Moser
Faculties
Faculties > Faculty of Cultural Studies
Faculties > Faculty of Cultural Studies > Department of Sport Science
Faculties > Faculty of Cultural Studies > Department of Sport Science > Chair Exercise Physiology
Language: English
Originates at UBT: Yes
URN: urn:nbn:de:bvb:703-epub-7568-1
Date Deposited: 18 Mar 2024 09:18
Last Modified: 18 Mar 2024 09:18
URI: https://epub.uni-bayreuth.de/id/eprint/7568

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