Two-electrode bioelectrical impedance measurement in body composition analysis before and after liposuction

Abstract

Background: The aim of the study was to determine the diagnostic value of bioelectrical impedance analysis in estimating the components of human body in dynamics. Subjects/Methods: The objects of the research were 37 healthy women before and after water-jet liposuction. Bioelectrical impedance analysis (BIA) was provided with portable non-professional analyzer “Tanita BC-542”. Subcutaneous adipose tissue, body water, muscle and bone components, and basal metabolism degree were obtained. Results: The body weight significantly increased immediately after liposuction, and on the 7th day it returned to the initial, body weight growth was associated with massive infusion during surgery. The percentage of fat, obtained with BIA, slightly decreased immediately after liposuction and significantly decreased on the 7th day. There is a correlation of the change in body fat percentage with the amount of the removed adipose tissue immediately after surgery and on the 7th day after surgery. The volume of the removed fat correlated with fat changes revealed by BIA immediately after surgery and on the 7th day. Body water, obtained with BIA, increased non-significantly immediately after liposuction, and significantly on the 7th day. Changes in weight after liposuction correlated with the difference between infused and aspirated fluid. Conclusions: Two-electrode BIA is an informative, accurate, easy to perform and affordable method of determining body mass, body fat and water percentage. Fatty tissue percentage and body water measured by BIA correlates with the volumes of removed fat and infused water.