The influence of caffeinated drinks on body composition indices change, measured with bioelectric impedance
Authors:
Aleksandr B. Miroshnikov, Russian State University of Physical Culture, Sport, Youth and Tourism, Moscow, Russia, ORCID: 0000-0002-4030-0302, This email address is being protected from spambots. You need JavaScript enabled to view it.
Anastasiya G. Lapaeva, Russian State University of Physical Culture, Sport, Youth and Tourism, Moscow, Russia, ORCID: 0000-0002-9021-4322, This email address is being protected from spambots. You need JavaScript enabled to view it.
Oksana S. Tannikova, Russian State University of Physical Culture, Sport, Youth and Tourism, Moscow, Russia, This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract:
Bioelectric impedance is often used for body composition analysis. General restriction for such analysis is abstinence from caffeine and caffeinated drinks 12 hours before testing. Nevertheless there is still no scientific concensus concerning the question of caffeine and caffeinated drinks influence on the results of body composition indices, measured with bioelectric impedance. The aim of the research was to define, if coffee and black tea with sugar influence the received parameters of body composition, measured with bioelectric impedance. Material. Defining the changes in body composition indices with the help of bioimpedance analysis after caffeinated drinks taking. Research methods. Scientific sources analysis and summarizing, bioimpedance measurement, methods of mathematical statistics. Results. The results of the research work show that in the sampling of young healthy people without obesity standardization violation of bioimpedance analysis (BIA) before testing (drinking 200 ml of water and 1 teaspoon of “Nescafe gold” coffee) doesn’t have significant influence on the received % fat body mass (FBM), % skeletal muscle mass (SMM), active cell mass (ACM) values, phase angle and general water of an organism. However, drinking the same amount of “Curtis. Elegant earl grey” black tea, with two lumps of sugar, changed ACM indices and phase angle statistically validly during 135 minutes of measurements. It is interesting that in the group with % FBM 9,0 [8,7-9,05] in case of black tea with sugar drinking we didn’t reveal statistically significant changes among the indices. In the group with % FBM 23,4 [22,6-27,1] standardization violation led to statistically significant changes according to ACM indices, phase angle and % FBM. We broadened the previous observations, showing that body composition indices don’t differ considerably during BIA “hand-leg” apparatus use after 200 ml of coffee. In general it proves that 200 ml of coffee don’t have significant influence on fat composition in a body and muscle mass, measured with BIA among healthy active people without obesity. However, 200 ml of tea with sugar distorts the markers of body composition during 135 minutes. Conclusion. We need additional research works concerning this protocol of hydration for BIA measurements standardization among people with obesity.
Keywords:
body composition, bioelectric impedance, bioimpedance measurement, anthropometry, caffeine, functional diagnostics.
DOI: 10.14526/2070-4798-2022-17-3-146-154.