METHOD FOR DETERMINING WATER DEFICIENCY IN A PERSON'S BODY

The invention relates to diagnostics, and more particularly to determining a state of water deficiency in a person's body in the course of their daily activities by measuring the impedance of a region of the person's body. In the present method, impedance values of a region of a person's body are measured at a high frequency and at a low frequency. On the basis of the impedance value measured at a high frequency, an assessment is obtained of the current amount of fluid in the body tissues in the volume under analysis, and on the basis of the impedance value measured at a low frequency, an assessment is obtained of the current amount of extracellular fluid in the body tissues in the volume under analysis. At a starting point of the measuring time, a reference value is selected for the assessment of the amount of extracellular fluid in the volume under analysis. Then a correction value which takes into consideration changes in the current amount of blood in the volume under analysis is determined. Then a corrected assessment of the amount of fluid in the body tissues in the volume under analysis is determined, which takes into consideration changes in the current amount of blood in said volume. The values obtained from the corrected assessment of the amount of fluid in the body tissues in the volume under analysis are used to judge the onset of a state of water deficiency in the person's body. The technical result of the claimed invention is the possibility of determining a state of water deficiency in a person's body in the course of their ordinary daily activities using measurements of the impedance of a region of the person's body. L'invention se rapporte au domaine des diagnostics, et plus précisément à la détermination d'un état d'insuffisance en eau dans l'organisme d'une personne au cours de son activité quotidienne en mesurant l'impédance d'une section du corps de la personne. Lors de ce procédé, on mesure la valeur d'impédance d'une section du corps de la personne à basse fréquence et à haute fréquence. Grâce à la valeur mesurée d'impédance à haute fréquence, on obtient une estimation de la quantité de liquide dans les tissus du corps du volume étudié à un moment courant, et grâce à la valeur mesurée d'impédance à basse fréquence, on obtient une estimation de la quantité de liquide hors cellules dans le volume étudié à un moment courant. On prend la valeur de base de l'estimation de la quantité de liquide hors cellules dans le volume étudié à un mom