What is the principle of measuring body age with body fat measuring instrument in gym?

Body fat measuring instrument in gym usually adopts bioelectrical impedance method. The principle is that body fat is almost non-conductive, while body components such as muscle and water are easily conductive. Therefore, the body fat detector can calculate the proportion of body fat, water and other tissue components by measuring the bioelectrical impedance of human body.

This measurement method is established in theory, but there are too many uncontrollable factors, from the design, installation, position and state of the machine to the time when people measure, the moisture contained in the body, the state of the body, and even the connection between people and the machine, the connection parts, the connection differences and so on. , which may have an impact on the measurement results.

Extended data:

Matters needing attention in the use of fat measuring instrument

Do not use measurement under the following special circumstances, otherwise the measurement result may be inaccurate:

1. After strenuous exercise.

2.？ After sauna or bath.

3. After drinking too much.

Drink plenty of water 0-2 hours after meals. 1.

5. Pregnant women are prohibited.

6. People who wear or implant medical electronic devices (such as pacemakers) should also avoid using such devices.

Baidu encyclopedia-fat measuring instrument