Between-devices agreement in obtaining raw bioelectrical parameters after a lifestyle intervention targeting weight loss in former athletes
Deutscher übersetzter Titel: | Übereinstimmung zwischen den Geräten bei der Erfassung bioelektrischer Rohparameter nach einer Lebensstilintervention zur Gewichtsabnahme bei ehemaligen Sportlern |
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Autor: | Silva, Tiago R.; Nunes, Catarina L.; Jesus, Filipe; Francisco, Ruben; Teixeira, Vitor H.; Sardinha, Luís B.; Martins, Paulo; Minderico, Claudia; Silva, Analiza M. |
Erschienen in: | Journal of sports sciences |
Veröffentlicht: | 40 (2022), 16, S. 1857-1864, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Elektronische Ressource (online) Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 0264-0414, 1466-447X |
DOI: | 10.1080/02640414.2022.2115755 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU202301000035 |
Quelle: | BISp |
Abstract
It is unclear if different bioelectrical impedance (BI) devices provide similar results regarding raw parameters [Resistance (R), Reactance (Xc), Phase Angle (PhA), and Impedance (Z)] for the same population/individual undergoing a weight loss intervention. The aim was to evaluate the cross-sectional and longitudinal agreement of raw data obtained by two BI devices in former athletes with overweight/obesity. Fifty-nine participants [mean (SD): 43.5 (9.2) years, 30.5 (4.0) kg/m2, 42% females] were included. All the assessments were performed before and after a 4-months lifestyle intervention targeting weight loss (WL). BI parameters were assessed at 50 kHz by two devices: a BI spectroscopy (Xitron Technologies, 4200B, San Diego, USA) and a phase-sensitive single-frequency device (BIA 101 AKERN, Florence, Italy). Cross-sectionally, BIS provided lower mean values for all parameters (0.4% for R, 1.6% for Xc, 1.0% for PhA and 0.4% for Z, p <0.001) compared to SF-BIA. In individuals with a WL≥2.5% (n =18), no longitudinal differences were found in any of the raw parameters between devices (p≥0.128) and there was no proportional bias (p≥0.408). Despite small baseline differences in raw BI parameters, both devices agreed in tracking changes over time at the group level but interpretation should be careful at the individual level.