For the body fat scale or body fat tester on the market, it can be summarized as "scientific principle, mature technology, but large data error, for reference only".
Both the body fat scale and the body measuring instrument measure the body composition through bioelectrical impedance analysis (BIA). Simply put, fat, muscle, bone and other tissues are distinguished by different electrical conductivity. After measuring the resistance value, the proportion of body components, such as body fat rate, is calculated by a formula.
In fact, BIA method is a quite mature technology, which is widely used in medical field and various physiological laboratories, but it requires very harsh test conditions to get accurate values. For example, we need enough electrode pads, well-designed contact position with skin, suitable temperature and humidity in the test environment, formulas and various coefficients adjusted according to different situations, and even have clear requirements for the recent exercise, diet and posture of the subjects.
The body fat scale we use every day, although backed by scientific principles and mature technology, is far from meeting the accuracy requirements in operation. There are only four electrode plates at the foot of the ordinary body fat scale, and the body fat tester in the gym is nothing more than two handles, and the humidity and temperature can't be controlled. The test environment is simple, so the error is definitely not small.
And the data of the body fat scale is not stable. Maybe your hands are sweaty during the exam, or you just finished running and ate something, which will greatly affect the data results.
Therefore, the data given by the body fat scale is only a rough idea, and it is ok to refer to it, but don't take it seriously, and don't be shocked by the sudden fluctuation of the body fat scale data, which will affect your mood or state. If you want more accurate data, you can fix the test conditions (for example, when you don't eat every morning), measure several times regularly and take the average)
Sebum forceps, also called fat forceps, are recommended in daily life. Sebum forceps can't directly tell you the percentage of body fat. If you want to get the percentage of body fat through sebum forceps, you need correct operation, stable technology and accurate formula. But it allows you to see the thickness of subcutaneous fat in your specific part intuitively, and the operation is simple and convenient. Fitness dieters can use it to monitor their changes at any time.
Of course, if the requirements are not high, an ordinary tape measure can also solve this demand.
In short, the method of testing your weight loss effect is not that complicated, and you don't need superstitious data. The quantitative dimension is the most intuitive way.
I'm Mr. Le Yi Li, about fitness &; Do you have anything to say about body fat? Welcome to leave a comment!