If girls are sensitive to weight
The girl who is losing weight is extremely sensitive
Remove all weights before putting on the scale
(In the program, Ouyang Nana before weighing, empties all kinds of weights; source: “Longing for Life”)
One more breath
(Source: “Unforgettable Restaurant”)
I am so happy to lose 2 pounds
I lost a pound of despair and cried
No matter how many times a day is weighed
Girls only trust the lightest one
but actually
This weight may be wrong!
Seriously, it’s the sum of bone, fat, skeletal muscle, body water, internal organs, and other tissues.
A person’s weight is greatly influenced by objective conditions. If you drink two cups of milk tea at noon, eat a bowl of rice, two dishes of side dishes, and put it on the scale immediately, this number cannot be regarded as your “real” weight.
Therefore, if you want to get a objective and reference weight, it is necessary to remove the interference of external factors as much as possible and reduce errors.
For people who lose weight, the series of numbers on the scale is the “gold standard” for checking the weight loss effect: once in the morning, once in the evening, and once on the scale in the pharmacy on the street before meals , come again at home after dinner…
(Weight: Please have mercy on your feet; Source: Internet)
This number is probably a “fake” weight.
You should know that a person’s weight changes at any time during the day, ranging from 1-3 kg, usually the lightest in the morning and the heaviest in the evening.
And when you lose weight after exercising, it’s not fat burning, but the weight of water you sweat and lose during exercise. Once you drink more water, the weight will rebound.
For example, if you ate something salty the day before, rich in sodium (such as sausage, bacon and other processed meats), your body will retain more fluid than usual and will naturally weigh a little more.
There are also electronic scales that have moved positions, or calibration problems, which can also affect readings…
Friends, numbers are not accurate. In order to let everyone get a relatively accurate weight, we specially invited two professional models to demonstrate friendship (colleagues are unwilling to disclose their weight, and they are running away):
Weighing time: Weighing at a fixed time, preferably after getting up in the morning and before breakfast, on an empty stomach and bare feet on the scale. If you have the habit of having a bowel movement in the morning, you can weigh it later.
Weighing Location: The electronic scale is best placed in the same position on the same level ground, and the person is best to stand on the scale every time same location.
Weighing position: Stand up straight, relax, head up, don’t look down, wait 5 seconds before seeing the results.
Correct Demonstration VS Wrong Demonstration
Weighing readings: Generally, it can be weighed 2~3 times until the number does not change to ensure accuracy. As far as most people’s experience is concerned, the value of the first weighing is generally higher.
Speaking of this, some people are eager to try it out, weigh the weight, how can it be justified without some high-tech? For friends who lose weight and fitness, they are not only concerned about weight, but also – body fat rate.
As the easiest way to obtain this body data, home body fat scales are used by many people.
There are many ways to measure body fat. The recognized “gold standard” is DEXA (Dual X-ray absorptiometry), which uses the principle that different tissues of the body have different absorption rates of X-rays to measure body fat. It is also the technique of choice for assessing bone mineral density [1].
However, the machines on which this technology relies are huge and expensive, and are generally only equipped in large hospitals or scientific research institutions. Therefore, this is not something that ordinary people can test whenever and wherever they want. They have to go to the hospital to register and pay for the test.
This deity looks like this:
As for the body fat scales that everyone grows, the body fat rate is mainly measured by using the different electrical conductivity of various components in the body: the water content of muscle and fat are different, and the resistance is also different. For the basis, to calculate the weight of different tissues.
(Source: Taken by myself)
Knowledge Interlude: What is Body Fat Percentage?
Body fat percentage is the ratio of body fat mass to body weight, including the sum of subcutaneous fat, visceral fat, intramuscular fat, etc. According to the World Health Organization, the body fat rate is ≥ 25% for men and ≥ 35% for women as the standard for excess body fat [2].
Excessive body fat content not only affects your health, but also affects the visual perception of your body.
For example, if two people have the same weight, but different fat content and body fat percentage, the displayed “volume” will be different.
Take the same daily weight of 100g of fat and 100g of lean meat as an example, the volume of fat is larger than that of lean meat.
(Source: Taken by myself)
So even two people of the same weight can look very different: the one with more muscle mass and low body fat percentage must look thinner and fitter.
Speaking of which, there are many uncertain factors in the actual use of home body fat scales, such as measurement methods, system algorithms, environmental temperature, humidity, and the human body’s eating and drinking conditions, all of which can be directly affect the final result.
And so far, there is a lack of mature technical guidelines, algorithms, standards and other guiding documents in China, and there are still some problems in production and registration for manufacturers that need to be regulated.
(connect to mobile app; source: self-photographed)
An evaluation agency compared the measurement results of 17 different brands of body fat scales with professional instruments, and found that there was a certain deviation in the measurement. For example, volunteers drink two bottles of water or hold a bucket of water for measurement, the body fat rate increases, and after going to the toilet, body fat decreases again. And when the test population is obese, the accuracy of the body fat scale will be relatively higher.
Therefore, the numbers measured by the home body fat scale can not be taken too seriously. If you really want to obtain body composition data, you can go to the hospital to register and use the hospital’s equipment to measure. If you don’t have that much time, you can weigh yourself at home and measure your waist circumference (adult male waist circumference ≥90cm, female waist circumference ≥85cm is obese) can be used as the basis for evaluation.
Final Words
Whether it is weight or body fat percentage, it is a series of numbers given to us by a cold machine.
Data from China Women’s Daily shows that Chinese people are more sensitive to obesity. When the BMI value is greater than 20.5, Chinese women feel that they are fat and begin to have the will and behavior to lose weight[3];< /p>
BMI: Weight (kg) divided by height (meters) squared. For example, if the weight is 60 kg and the height is 1.7 meters, then the BMI is 60÷1.7 ≈ 20.8.
And among those who lose weight, less than 50% are truly overweight (BMI over 24). Some friends who are extremely anxious about their body, in order to lose weight, go to the gym to exercise excessively, go on a crazy diet, and even lead to eating disorders. The mortality rate of “anorexia nervosa” is as high as 5% to 20% [4].
Our aesthetics should have rejected the stare that “women are only white and thin”.
Weight can be used as a small ruler for our self-disciplined life, and it does not have to be a source of body anxiety.
The standard of beauty is never a series of numbers.
Reviewer: Shi Zhengli| Nutrition Technician, Department of Nutrition, Beijing Friendship Hospital
References
[1]Lewiecki EM, Watts NB, McLung MR, et al. Official positions of the International Society for Clinical Densitometry. J Clin Endocrinol Metab 2004; 89:3651-3655 [Crossref] [ Medline] [Google Scholar]
[2]World Health Organization https:https://www.who.int/topics/obesity/en/
[3] China Women’s Daily: Overweight women who lose weight can only lose weight for a long time with less than 50% weight management https:https://mp.weixin.qq.com/s/nGd3ptT14tq8DoMZZzarcg
[4] American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders: Fifth Edition [M]. Peking University Press, 2016, (8): 114-115.
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