Can the body fat scale really measure accurately? Is the body fat percentage measured by the body fa

A body fat scale is a tool that estimates body fat content through resistance measurement technology. While it's relatively inexpensive, convenient, and easy to use, its accuracy varies depending on factors such as individual differences and usage conditions. [Now**Slim Bar Fat Loss APP, you can get fat loss reviews and programs for free.

The accuracy of a body fat scale is affected by several factors, including:

1.Humidity and temperature: Changes in humidity and temperature may affect resistance measurements and thus the estimation of body fat content.

2.Body water content: Body fat scales use resistance measurements to estimate body fat content, but if your body water levels change, such as if you're dehydrated or have too much water intake, the measurements can be skewed.

3.Body Morphology: The algorithm used by the Body Fat Scale is based on a body fat distribution model of the average population. If your body shape is different from the model on which the algorithm is based, there may be some error in the measurement results.

Despite these factors, the body fat scale can still provide a relatively accurate metric to monitor trends in weight changes and body fat content. But for more accurate body fat measurements, you may need to use more specialized equipment, such as skinfold thickness gauges or dual-energy X-ray absorptiometry.

All in all, a body fat scale can be used as a simple, economical, and convenient tool, but it should be used with an understanding of its limitations and its results as a reference rather than an absolutely accurate numerical value.

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Relatively accurate。But in any case, there is a certain amount of systematic error in the body fat scale, and it is unlikely to be 100% accurate.

The principle of body fat scale is that body fat percentage is calculated indirectly, or estimated, rather than directly measured like weight, which fundamentally leads to errors. In fact, as long as the error is within a reasonable range, it will not affect normal use at all, because we should pay attention to the physical changes over a period of time.

The scale body of the body fat scale sends out a weak current through the electrode sheet into the human body, the microcurrent enters the human body from one foot, conducts it in the body, transmits the data back to the electrode sheet under the other foot, and the human body and the scale body constitute a closed AC circuit, so that an electrical impedance value is obtained, and then the electrical impedance value is combined with the data such as height and weight to calculate the body fat rate.

Since the data of the body fat scale is calculated based on the resistance value and the human body model, there are natural errors, and it is affected by factors such as human moisture and conductivity, so it is not meaningful to investigate the accuracy of the value of the body fat scale.

Precautions for using a body fat scale

1. If you can still measure body fat while wearing shoes or socks, it means that the scale will not emit current at all. A real body fat scale cannot measure the body fat rate through shoes, socks or plastic bags.

2. Whether the feet are wet or not will also lead to abnormal resistance during measurement, which will cause a sudden change in body fat rate.

3. The body fat rate measured by the normal body fat scale will vary greatly in the morning and evening.

In the morning, before eating and drinking, the body fat rate reaches the highest peak of the day, and in the afternoon and evening, with the weight gain and water rate increase due to eating and drinking, the body fat rate reaches the lowest value of the day. So within a day, even if the weight is the same, the body fat percentage will fluctuate, rather than a fixed number.

There is a certain accuracy rate, which can provide a reference.

The principle of lipid measurement:

The weighing method of the smart body fat scale is the BIA bioelectrical impedance measurement method. That is, the user stands barefoot on the body fat scale, and a weak current passes through, and a resistance value is measured according to the law that body fat does not conduct electricity, and body water conducts electricity. According to the user's height, age and gender, it is calculated by substituting the big data sample model.

There are three main things that determine whether a body fat measurement is accurate:

1. Sample model.

There are three main types of sample models: sample models built with Caucasian users in Europe and the United States, sample models built with yellow Asian users, and sample models created by specially trained people such as athletes. Obviously, the sample model made of yellow people is more in line with the real physical condition of ordinary users in China.

2. Sample size. The sample size is proportional to the accuracy of the measurement results, and the larger the sample size, the finer the classification and definition of the user, so the higher the accuracy of the calculation.

Since the company's inception in 2013, Youpin PICOOC and the University of Chicago have jointly used a sample of more than 600,000 yellow users to polish the algorithm and data to get closer to the real physical condition of ordinary people.

3. Measure posture. At present, there are three ways to measure fat on the market: two-handed measurement, two-foot standing three-dimensional fat scale measurement, and mixed measurement.

It depends on what brand you bought, my home is productive, and it has been used for three years.

The principle of the body fat scale is to measure the fat content using the BIA bioelectrical resistance analysis method. That is, by measuring the bioelectrical resistance of the human body, the fat content of the human body is derived.

Specifically, the human and body fat scales form a closed space, and the weak current conducts in the human body, and the amount of fat is judged according to the performance of non-conductive and non-fat conductive fat, and the difficulty of the current passing through the body.

In the same person, the results can be very different before and after a light exercise. Moreover, different parts are different, so the results of standing and lying down are different (so the standard test method is that the subject lies flat on the surface of a non-conductive object, and the electrodes are placed on the hands and insteps of the feet, as well as between the radius and ulna and the ankle).

Therefore, we believe that this kind of household consumption-grade body fat scale is not very reliable, and its data can only be used as a reference.

The body fat scale is definitely accurate in measuring body weight, and other parameters can only be used as a reference!

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.

First of all, it depends on whether this brand is professional or not, to be honest, like what Xiaomi Huawei, itself is not doing this, suddenly came to make scales, I don't trust, secondly, it is to see if the data is accurate, you can compare the measured data with the gym, there must be some errors, choose a small error on the line, and finally you should see if the software is good or not, some scale software has no function except for displaying data, and the next app occupies memory, choose some software with rich functions, For example, there is a body fat scale, which is very complete and professional, and it is worth buying.