Bioelectrical impedance analysis

What is bioelectrical impedance analysis?

It is a diagnostic method that helps to receive objective data on a patient’s body composition. It is based on measuring the impedance of various body parts. The method is mostly used to estimate fat and muscle ratio. The test helps to:

  • identify the perfect weight for each patient;
  • measure the mass of body fat relative to the overall body mass;
  • measure visceral fat;
  • measure the amount of liquid in the body;
  • measure muscle mass;
  • calculate your BMI;
  • measure the metabolism during 24 hours at rest;
  • identify daily energy needs for a patient.

The method is used to objectively assess the diet for treating obesity, to choose aesthetic procedures aimed at body contouring, and to assess the physical condition of athletes.

Bioelectrical impedance analysis at Kivach Clinic

Omniscan and Tanita devices are used for this test. They measure the resistance of tissues and determine the amount of liquid, body fat, and fat-free tissue mass, as well as calorie expenditure. This data is interpreted to identify abnormalities and health conditions of a patient.

Bioelectrical impedance analysis is recommended for:

  • assessing the risk of developing some diseases;
  • identifying a patient’s biological age;
  • choosing an appropriate method of weight loss;
  • choosing an appropriate intensity of physical exercise;
  • monitoring the results during the weight loss program or while gaining muscle mass.

How is the analysis conducted?

Before the test, the doctor measures a patient (body mass and height) using the Tanita device. This data is saved into a device's memory. Age, sex, and the level of physical activity are taken into consideration.

The test itself resembles electrocardiography. Electrodes are attached to the patient's arms and legs. During a short period of time weak electric current flows through the body. This current is not felt by a patient.

Different electrical resistance of various body tissues helps to identify the amount of:

  • body fat;
  • fluid;
  • muscle mass.

Based on this data, the device calculates BMI, metabolism, and the perfect weight for a patient.

If body shaping is needed, a patient can consult a dietitian or aesthetician.


  • pacemaker, stents, metal implants;
  • fever;
  • pregnancy, lactation.


  1. If the procedure safe?
  2. The procedure is absolutely safe. An electric current that is sent through the body does not affect tissues and organs.

  3. Is the procedure painful?
  4. The procedure is painless. It resembles electrocardiography.

  5. How to prepare for the procedure?
  6. One should abstain from food and drink 2-3 hours before the procedure.

  7. Are complications possible?
  8. There are no complications.

  9. What ensures that the procedure is successful?
    • Qualified medical specialists with extensive practical experience.
    • Advanced equipment.
    • Compliance with the standards of medical care.