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PortuguêsFor example, when an electrical signal of a certain frequency passes through the human body, the fat part has a higher "impedance" value than the muscle and other tissues of the human body. When a safe specific frequency electrical signal passes through the human body, the electrical signal will change to varying degrees due to the different "impedance" values ??of the human body.
Principle: Muscle contains more water such as blood, which can conduct electricity, while fat is non-conductive. Since the conductor of electrical current in the body is the muscle, the weight of the muscle can be known from the ease of passage of the current. From this, it can be judged that in the proportion of body weight, people with less muscle have a higher proportion of fat.
Correct health concept: A healthy body lies in the balance of body fat. Excessive accumulation of fat will harm the body and lead to various diseases. Human body fat is an important part of the human body and 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, too much fat will affect human health, leading to diabetes, cardiovascular and cerebrovascular diseases. In addition, obese patients are often faced with various distresses such as being afraid of heat, affecting their body shape, and being easily fatigued. Therefore, doctors and experts recommend keeping your body size within a certain range. With the improvement of people's living standards, health issues are getting more and more attention, which also promotes the development of the science of measuring body composition.
There are many methods for measuring human body composition, especially human body fat, mainly including underwater weighing method, picometry method, and bioelectrical impedance analysis method. In addition, there are dual-energy X-ray absorption methods, computed tomography, and magnetic resonance methods that have developed rapidly in recent years. However, these methods require relatively expensive equipment and professional training, and patients are easily exposed to radiation, which is not suitable for home use. . The BIA method is easy to use, accurate in measurement results, and relatively inexpensive, and is favored by consumers.
The theory of BIA is based on BIA is a technique designed to estimate body composition based on the different electrical conductivity properties of different body tissues. After the body tissue is connected to a current with a frequency greater than 50kHz, the current can pass through the extracellular fluid. But part of the current will be blocked by the cell membrane; part of the current will slow down the speed of the current because the cell membrane is temporarily charged. This is the resistance. It is the sum of resistance and resistance, usually resistance accounts for more than 90%.
The electronic fat scale is based on the above principles, using the electrodes on the surface of the scale body to contact the user's legs, through a certain safe current, to measure the human body resistance. Then based on the input user data and the measured human body resistance, we use our extensive The formula obtained from the experiment can accurately measure the body composition such as body fat percentage, body water percentage, body muscle percentage, and bone weight.
