Is the body fat scale an IQ tax

The principle used by the body fat scale is the bioelectrical resistance method, or BIA for short. That is, a small electric current is passed through the human body, the resistance value of the human body is measured, and then the fat content is calculated.

BIA is based on a certain correlation between the body's electrical resistance value and fat weight. But the resistance value is very unstable, maybe some people are born with a greater resistance than others, maybe you just drank a lot of water, the resistance is relatively small.

Moreover, because it has to pass through the human body, the current is very weak, and after a circle of the human body, the electrical signal is caught again, and this error must be very large.

Even if this resistance value is accurate, the resulting fat percentage may not be accurate.

As mentioned earlier, the resistance value and fat weight are related, but this correlation is"Weak correlation", not really"Strong correlation"。

In BIA's model, adipose tissue is considered to be non-conductive, which is equivalent to infinite resistance, so we measure the resistance value of muscle tissue, and the weight of muscle tissue is calculated according to the resistance of muscle tissue, and then the weight of adipose tissue is obtained from the weight of muscle tissue.

You say, is it weakly correlated? Therefore, if you look at it from a scientific point of view, the error rate of body fat measurement is actually quite large.

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Body fat scales are not IQ taxes! A body fat scale is a scale that can measure fat, moisture, etc., in addition to body weight. There are sensors on the market that measure body fat in two materials: ITO membrane and electrode sheet.

The principle of the human fat scale is that muscle contains more water such as blood and can conduct electricity, while fat does not conduct electricity. Since the channel conductor of the current in the body is the muscle, the weight of the muscle can be determined by the difficulty with which the current passes, and the proportion in the body can be determined. The study found that:

For example, when a certain frequency electrical signal passes through the body, the fat part has a higher "impedance" value than the muscle and other tissues of the body. When a safe electrical signal of a specific frequency passes through the human body, the electrical signal will change to varying degrees depending on the value of the "impedance" of the human body.

Principle: Muscle contains more water such as blood and can conduct electricity, while fat does not. Since the channel conductor of the current in the body is the muscle, the weight of the muscle can be known from the difficulty of the current passing, and it can be judged that the proportion of body weight is higher in people with less muscle.

Correct health concept: a healthy body lies in the balance of fat in the body, and excessive fat accumulation is harmful to the body and leads to various diseases. Body fat is an important part of the human body, and it has important functions and roles in the human body, such as providing energy, protecting internal organs, maintaining body temperature, assisting in the absorption of water-soluble vitamins, and participating in human metabolic activities.

However, excessive fat can affect human health, leading to diabetes, cardiovascular and cerebrovascular diseases, etc. In addition, patients with obesity often face various troubles such as heat intolerance, affecting body shape, and fatigue. Therefore, doctors and experts recommend keeping the body shape within a certain range.

With the improvement of people's living standards, health issues are becoming more and more important, which also promotes the development of the science of measuring body composition. According to the above principle, the electronic fat scale uses the electrodes on the surface of the scale body to contact with the user's legs, and measures the human body resistance (bio-impedance) through a certain safety current. Then, based on the input user data and the measured body resistance, using the formulas obtained in our extensive experiments, we can accurately measure body components such as body fat percentage, body water percentage, human muscle percentage, bone weight, etc.

No.

The body fat scale is measured using the bioelectrical impedance method. The principle of the body fat scale is that the fat in the human body is non-conductive, while the muscle has more water content and is easy to conduct.

If there is more fat content and less muscle, the biochemical resistance value is relatively high when the current passes; On the contrary, the biochemical resistance value is relatively low. Based on the collected electrical impedance values, the body composition is quantitatively analyzed according to the mathematical model of different races, ages, and genders.

Precautions for body fat scales.

1. When weighing, it is best to use it in some relatively flat and hard places, and it is best to avoid soft places, such as blankets, foam, etc., so as to ensure the accuracy of the data.

2. When weighing, we must stand firmly, stand in the middle of the scale, and the left and right feet should be evenly distributed and in the center of the scale, because in this way we can make our data more accurate. If you say that you are standing on the left or right, this will cause some mistakes, please be careful.

3. In order to measure the amount of body fat, bone weight and other information more accurately, please go on the scale barefoot.

Many body fat scale sales pages introduce at least 10 functions to start, not only to measure weight, BIM, body fat percentage, water rate, muscle content, bone content, visceral fat, etc., but also to generate chart reports based on measurement data and records, "electronic personal training" will provide personalized fitness, **, plasticity, muscle gain and other suggestions.

However, due to the fact that most of the household body fat scales use the "bioelectrical impedance analysis method", the content of human body fat and muscle is estimated by the different conductivity of fat and weight. Drinking water, eating, and having limited access to electrodes in the human body can all affect the test data, as well as the data models of different products.

Therefore, for this type of smart device as a body "management", the industry suggests that it can be used to understand the basic condition of one's body on a daily basis, and the analysis data of the app is only helpful for the reference of exercise and diet.

Scientific use of body fat scales.

Be careful not to do strenuous exercise before each measurement, and do not take the measurement after eating, drinking, and bathing heavily.

Although there is an error in the bioelectrical antibody lipid scale, we can try to create "fixed" conditions and record the change in body fat percentage to achieve the desired effect. For example, the test is fixed in the state of getting up every morning on an empty stomach; During the immobilization test, the feet and arms are slightly open without twisting the body, etc.

It should be reminded that if there are electronic medical devices installed in the body, such as pacemakers or respirators, it is not suitable to use the body fat scale, so as not to affect the normal operation of the medical equipment due to the low-frequency current output by it. There is also no need for pregnant women to use a body tester because body fat and water are generally higher during pregnancy.

Body fat scales are not IQ taxes! Body fat scale is a must-have for many fitness and health enthusiasts at home and abroad, and it has gradually become a must-have at home.

The body fat scale is a weighing meter that can measure fat, moisture, etc., in addition to measuring the weight of the person. The principle of the human fat scale is that muscles contain more water such as blood and can conduct electricity, while fat is non-conductive.

The reason why the body fat scale can have so many functions is because the channel conductor of the current in the body is the muscle, and the weight of the muscle can be known from the ease with which the current passes, and from this, the proportion of the body weight can be judged.

Body fat scales are the first choice for many fitness enthusiasts and wellness enthusiasts. By recording the body condition at different moments through the body fat scale, the ratio of fat and muscle can clearly know the current condition of the body, and adjust your diet through the results.