Does Body Position Influence Bioelectrical Impedance? An Observational Pilot Study

Paweł Więch (), Filip Wołoszyn, Patrycja Trojnar, Mateusz Skórka and Dariusz Bazaliński
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Paweł Więch: Department of Nursing and Public Health, Institute of Health Sciences, College of Medical Sciences, University of Rzeszow, 35-959 Rzeszow, Poland
Filip Wołoszyn: Department of Human Physiology, Institute of Medical Sciences, College of Medical Sciences, University of Rzeszow, 35-959 Rzeszow, Poland
Patrycja Trojnar: Medical College, University of Information Technology and Management, 35-225 Rzeszow, Poland
Mateusz Skórka: Orthopedics Department, St. Hedvig Clinical Provincial Hospital, 35-301 Rzeszow, Poland
Dariusz Bazaliński: Department of Nursing and Public Health, Institute of Health Sciences, College of Medical Sciences, University of Rzeszow, 35-959 Rzeszow, Poland

IJERPH, 2022, vol. 19, issue 16, 1-10

Abstract: As the availability of various bioelectric impedance analysis (BIA) tools is increasing, the patient’s position during the test may be of significant importance for the comparability of the results. An observational pilot study was undertaken between March and May 2021 at the Center for Innovative Research in Medical and Natural Sciences at the University of Rzeszow, Rzeszów, Poland. All participants ( n = 49: M: 21.05 y ± 1.12 vs. F: 21.34 y ± 2.06) were subjected to measurements of selected nutritional status indicators and body components in three positions: lying, sitting and standing. The body composition indicators were obtained using a bioelectrical impedance device, AKERN BIA 101 Anniversary Sport Edition Analyzer (Akern SRL, Pontassieve, Florence, Italy). The results were analyzed using dedicated software (BodygramPlus 1.2.2.12 from AKERN 2016, Florence, Italy). Our observations indicate that there is a significant difference between lying and standing as well as sitting and standing with respect to anthropometric and nutritional indicators (resistance, reactance, phase angle, standardized phase angle, body cell mass index and fat-free mass index) and body composition components, with particular reference to intracellular and extracellular water. The described differences are significant for both sexes. This study showed that this significantly influenced the scores of components directly related to resistance, reactance and hydrated cell mass, while not affecting the percentages or absolute values of fat and fat-free mass.

Keywords: BIA; body composition; impedance; phase angle; nutritional status; anthropometry (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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