[Principle of body fat scale]What does the principle of body fat scale mean? Is body fat scale accurate? A body composition measurement device. Body composition generally refers to the macro components that make up our body, mainly in two parts: fat and lean body mass (LBM). Fat is easy to understand, it is the fat on our body, including the stored fat in the internal organs. The concept of “lean body mass”, which many people understand as muscle, is actually wrong. Lean body mass, in addition to muscle, also includes bone, a very small amount of essential fat, and some other non-adipose tissue. Fat, we want less, lean body mass, we want as much as possible. This may be beneficial both from an aesthetic point of view and from a health point of view.
The principle of the body fat scaleWhat is
The principle of the body fat scale In fact, it is measured by the bioelectrical impedance method by using the characteristics of adipose tissue that is difficult to conduct electricity and muscles are easy to conduct electricity.
As we all know, human muscles contain a large amount of water such as blood, which can conduct electricity, while fat is not conductive, so the conductor of the current in the body is muscle, and the difficulty of passing the current can be adjusted. Knowing the weight of muscle, it can be judged that in the proportion of body weight, the proportion of fat in people with less muscle is higher.
How the body fat scale measures fat
How does the body fat scale distinguish fat and non-fat tissue in the human body what about? In fact, body fat scales are based on a technique for measuring body composition called “bioimpedance analysis” (BIA). The principle of this technology can actually be guessed by looking at the name. Simply put, it is based on the different electrical conductivity of fat and lean body mass to distinguish them. The water content in fat and lean body is different, so the resistivity is also different, lean body has more water and lower resistance. Fat has a higher resistance because of its very low water content.
What does the principle of body fat scale mean
BIA analysis method is to place several contact electrodes on the surface of human skin, input a fixed current, and then An electrical impedance value can be obtained. Then use the formula to calculate the body composition of the human body. On the body fat scales we usually use, there are several smooth metal touch pads that we need to step on with bare feet or hold with our hands. These metal contact pads are the contact electrodes.
Because the final result of BIA analysis is calculated by formula using the electrical impedance value, so BIA is a “black box” method, and the direct result measured is very simple, just one electrical impedance value, the rest The conclusions need to be calculated. These formulas for calculating body composition are all empirical formulas, and there are more than one. There are quite a few differences between the different formulas. Therefore, whether the BIA analysis method can accurately measure body composition depends not only on the accuracy of the measurement data, but also on which formula is used.
BIA analysis method, although some laboratories and hospitals are also used, but in fact, among the various methods of measuring body composition, BIA is not a particularly accurate method. The main reason for being widely used is that this method has low equipment cost, simple and convenient operation, miniaturization and portability, and also has certain accuracy.
Is the fat scale useful?
It is useful, in fact, the fat scale is also called a body fat measuring instrument. It can measure body fat rate, body water rate, weight, Muscle mass, etc., help you understand the content of each component in your body, and advocate that after knowing these contents, people can achieve balance through appropriate exercise and correct diet to maintain a healthy body.
Is the body fat scale accurate?
The ordinary fat scales purchased by families are not very accurate, and the fat scales that families can buy can only measure theoretically Lower body fat. Then fit the fat of your upper body through a large amount of data matching. Whether the measurement is accurate or not depends on the amount of data collected by the manufacturer. The body fat mass is definitely not measured, it is a rough value estimated by an algorithm. If you want to measure body fat, you have to use tens of thousands of equipment, which are available in the gym.
