Dynamics of frequency dependences of parameters of electric impedance of a person during dry fasting

Abstract

Introduction The article considers the possibility of further development of the method of analysis of the parameters of electrical impedance to determine the current functional state of a person in various conditions of his life, in particular during the "dry" fasting. The aim of the study was the dispersion properties investigation of the amplitude and phase parameters of human body impedance in the extended frequency band during the weekly one and half day "dry" fasting. Methods. Measurement of electrical impedance parameters was performed weekly during half a year on one person before, during and after a day and a half fasting . Broadband three-frequency measurement technique is used. The possibility of analyzing the dispersion characteristics of a human body using the Cole hologram is considered. Results and discussion. It is established that in the process of "dry" fasting there is a change of all parameters of impedance. The most pronounced changes in the parameters of electrical impedance are observed by the definition of the module and the active component at a frequency of 100 kHz, the phase at frequencies 20 and 500 kHz, the reactive component at a frequency of 20 kHz. Conclusion. Changes in the dispersion properties of the human body impedance are noticeable in all parameters especially in phase and reactive resistance. According to the research results an interpretation of changes in the functional state of a person during fasting was made.