How to calculate body mass index correctly. How to calculate your ideal weight? Maximum allowable body weight
There is hardly a person who would not care about his appearance. Each of us wants to look attractive - to possess perfect proportions body, maybe even become a new standard of beauty. But, as you know, we are all different - in height, age, configuration.
In many ways, a person’s self-awareness is affected by his weight. Accordingly, the higher it is, the more uncomfortable we feel. It is unlikely that there is a person who refuses to calculate the ideal weight for him. As mentioned earlier, we are all different, which means that body weight will be individual.
Ways to calculate ideal weight
We are not alike, and each has its own beauty. And in pursuit of perfect figure it wouldn't hurt to know exact weight to be strived for. So it will be easier to control the path traveled and the remaining path to your standard.
When calculating your ideal weight, remember that you should first of all feel comfortable with these kilograms. Because someone is crazy about protruding collarbones, while others, on the contrary, prefer lush forms.
Despite all individual preferences, doctors have set a peculiar framework for determining the shortage or excess of kilograms. To date, a great many online calculators and various tables have been developed and compiled. Many experts are studying the question of how to calculate weight by height and age, sex. But they did not come to a consensus.
The most famous calculation methods:
- By Quetelet
- By Brock.
- According to Egorov-Levitsky.
- According to Lorenz.
You can independently calculate weight by height and age using any of the methods. And having learned the treasured figure, it will be possible to begin the path to your standard.
Calculation of BMI by Adolf Quetelet
It should be noted right away that this method will not calculate the ideal weight. According to Quetelet, you need to calculate based on your current weight and height After, focusing on the result and the developed table, get information about the need to gain weight or lose weight.
This scientist calculated the body mass index by the formula: weight, kg / (height, m × height, m).
Age 18-25 years old | Age 26-46 years |
|
Inadequate |
||
Underestimated, but not critical |
||
Excess |
||
27.5 and above | Obesity |
|
Example: a woman at the age of twenty-seven, one hundred and seventy centimeters tall and weighing sixty-seven kilograms. BMI = 67 / (1.7 × 1.7) = 23.18. According to the table, the index indicates weight within the normal range.
The Quetelet method is not exactly a calculation of weight for any height. Since the formula for calculations is only suitable for the average person (170-190 cm for men and 155-175 for women). If you are constantly moving and exercising in gym, this method of calculation also does not suit you. The advantage of BMI is that it does not push a person on the path to an invisible ideal, but assesses the real state.
Calculation of the ideal weight according to Brokk
Paul Brokk is a French surgeon and anthropologist. The formula by which it is possible to calculate the weight of a person, he invented in 1871. You can apply it for people with a height of one hundred and fifty-five to one hundred and seventy centimeters. Also a condition for the calculation is the possession of an average physique. Formula for women: weight = height, cm - 100. Then multiply the resulting figure by 0.85. For men, also subtract a hundred from height. And the result is multiplied by 0.9.
For example, for a woman with an average build and a height of 170 centimeters, the ideal weight would be 59.5 kilograms ((170 - 100) × 0.85 = 59.5).
Updated calculation according to Brokk
After some time, the formula was improved. Since the previous version required a person of average build, growth in a certain interval, people with a non-standard figure could not enter this category. For example, with heavy bone or bulky muscles. After processing by scientists, the Brocca method became more real and reliable:
- for women: weight = (height - 110) × 1.15;
- for = (height - 100) × 1.15.
For example, calculating the ideal weight for a woman one hundred and seventy centimeters tall will look like this: (170 - 110) × 1.15 = 69. Sixty-nine kilograms is the optimal weight for the weaker sex with a non-standard figure.
Lorenz ideal
The scientist developed the formula exclusively for the representatives of the beautiful half of humanity, these calculations will be inappropriate for the stronger sex. The calculation of the ideal body weight is as follows: (height - 100) - (height - 150) / 2 = body weight.
Example: a woman is one meter seventy centimeters tall. The calculation will look like this (170 - 100) - (170 - 150) / 2 \u003d 70 - 20 / 2 \u003d 60. So, according to the Lorentz formula, for a representative of the weak half of humanity, the ideal weight would be sixty kilograms.
Compared to Brokk's calculation, Lorenz has more stringent requirements for body weight. This formula is more suitable for eighteen-year-old girls. And if the proposed figure does not quite suit you, just forget about it and use the formula of another scientist. And plus everything, the calculation is not suitable for women above 175 centimeters.
Egorov-Levitsky method
No weight calculation formula is needed for this method. The scientist created a table indicating the maximum body weight, taking into account age and
When compiling, the developers took into account all the most important factors that form weight. They indicated only the maximum limit, but did not specify the minimum. And, in fact, it is not necessary. After all, a person is mainly concerned about excess kilograms, and not their lack.
How to achieve your ideal weight
If, after you have calculated the weight by age, height and gender, you find that there are a couple of extra pounds, then it's time to think about eliminating them.
Trying to maintain an ideal body weight, you are doing a huge service to your body. In many developed countries, people with overweight make up fifty percent of the total population. And every year their number increases exponentially. This is an additional, unnecessary burden on the human body. It affects the joints to a greater extent and internal organs. But, nevertheless, it is worth noting that thinness also does not benefit. The golden mean in the matter of weight is what any person needs.
Having made the decision to lose weight, do not try to find a miraculous and fast diet. Such does not exist. It will not bring benefits, but it is quite capable of weakening the body. It is best to lose weight gradually. After all, in fact, getting rid of excess weight is not difficult, difficulties appear when trying to maintain it.
A weight loss method is considered safe, in which you lose from five hundred grams to one kilogram per week. If the weight goes off faster, then you burn not only fat, but also muscle fibers. And this is absolutely unacceptable. Since with well-developed muscles it is easier to maintain optimal weight.
Steps to ideal weight:
- Drink a glass of clean drinking water on an empty stomach, and fifteen minutes before the start of any meal.
- Don't skip breakfast. And no, you shouldn't skip any meal. After all, this way you get hungry and eat even more in next time. And, as you know, it is better to eat many times, but a little bit.
- Try to reduce your fat intake.
- Come to the store with a prepared shopping list. So you will not be tempted to grab something unnecessary and harmful.
- Chew food thoroughly. Thus, you not only do not choke, but also get enough faster. When eating slowly, the feeling of hunger disappears more quickly.
- If you feel like you haven't eaten enough and need a refill, then the first thing you need to do is take your time. Sit for five minutes. And then think about whether the feeling of hunger is really so strong.
- Eat strictly in the kitchen. Never eat while standing or walking.
- Add a fresh fruit or vegetable to every meal.
- Avoid white bread.
- Simmer and bake. Try not to fry your food.
- Allow yourself sweetness no more than once a week.
- Give up fast food.
- The optimal number of meals per day is five.
- Cook your own meals more often. So you will control how it is processed and calories.
(BMI, in English BMI) shows how much weight in kilograms falls on 1 meter of body area. This calculation of BMI was developed by Adolf Quetelet more than 150 years ago, and, oddly enough, this formula is still used today.
What gives us the definition of BMI? The calculation of the coefficient will show the ratio of a person’s height to his weight, as a result of which it can be determined whether the body weight is normal, insufficient or excessive. The ratio of height to weight should be normal, otherwise the deviation may affect your health.
How to know BMI?
The body mass index is calculated based on height and weight only. Of course, one formula cannot be applied to all. It is also necessary to take into account gender, age of a person, his lifestyle. Depending on these criteria, people have different proportions of fat and muscle. When determining BMI, you need to take into account all your indicators (if you have an athletic physique, a high figure may be the norm for you).
There are several formulas by which this index can be determined. Previously, Brock's formula was used: BMI \u003d height (in centimeters) - 100. Today, it is believed that this formula is suitable for women 40-50 years old, for girls 20-30 years old, the index should be 10% less, and for ladies over 50 it is allowed an indicator that is more by 5-7%. In addition, now the BMI formula takes into account the correction for body type.
How to calculate on the BMI calculator?
It is optimal to use the Quetelet formula to determine the index. To do this, take a calculator. Enter your weight in kilograms and divide by your height twice (height must first be converted to meters). The number you get is your body mass index. That is, the BMI formula is: weight divided by height squared.
For example, let's calculate the BMI for a woman with a height of 165 cm and a weight of 56 kg. Let's immediately translate the height into meters, we get 1.65 m. Let's determine the body mass index:
56/(1,65*1,65)= 56/ 2,7225=20,57.
In this example, for this woman, the resulting BMI is at the normal level.
Index table
In determining at what level your indicator is, a special BMI table will help you. It is easy to use, you only need to determine your body mass index first.
Dependence of health on BMI | Harm to health |
|||
Anorexia | ||||
underweight | ||||
| - | ||||
Increased body weight | Possible health hazard |
|||
Obesity | grade I | elevated |
||
grade II | ||||
grade III | ||||
obesity IV | Extremely high |
|||
Based only on this table when determining body weight is not correct, for men and women the norms are different, you also need to calculate BMI taking into account age, for children and adolescents the indicators are different.
Calculation of BMI for men
Usually men care less about the index, but when it comes time to join the army, everyone needs to calculate it right away. After all, this indicator can be decisive and serve as a temporary delay. This is where men start to think about what their BMI is. The calculation is carried out in the same way, below are the norms for men:
- less than 18 - underweight;
- 18.5-23.8 - the norm;
- 23.9-28.5 - overweight;
- 29 and above - obesity.
In Israel, the norm is slightly higher, this was found out after research. It was observed that men with an index of 25-27 had better health. These figures are not in every case the norm. For example, a man boxing or strength training, will weigh much more than normal, but this does not mean that he is overweight.
BMI calculation for women
For women, things are quite different. Every girl must think about her weight and how close she is to ideal index body weight. The Quetelet formula will also help here. If your index is:
- less than 19 - underweight;
- 20-25 - the norm;
- 26-30 - there is excess weight;
- 31 and above - you are obese.
If you want to determine the body mass index in order to decide how many kilograms to lose weight, then it is better to contact a nutritionist with this question. When calculating BMI, he will calculate based not only on the Ketele formula, but also using additional formulas. He will determine the exact index, taking into account the characteristics of your body, as well as lifestyle. It is not recommended to calculate BMI during pregnancy, as the data will be false.
The index norms for men and women differ for several reasons. First, men have more muscle, secondly, their physique is more lean (due to physiological characteristics).
Calculation of BMI for children
It is more difficult to determine the body mass index for children, the child is still growing, changing. But even here our formula will help you. The calculations are carried out in the same way. To make this process easier and not have to do calculations every time, centile tables will help you. These tables are easy to understand. To determine the BMI, you will need data on the height, weight, and age of the child. The first and last columns in the table show the minimum and maximum indices, and in the middle columns there are indicators that are normal for a given age. To create these tables, a large-scale collection of information was carried out, which involved about 1000 children. Centile table of BMI for children is presented below.
If your child's weight is in the first or last columns, then they are underweight or obese, respectively. In this case, it is urgent to take action, but if the child's body weight falls into the middle columns, then everything is in order (these BMI indicators are the norm for the indicated age).
Teen BMI Calculation
In adolescents, everything is also ambiguous, it is difficult to determine the index, and the norm for girls and boys aged 12-16 diverges. Girls mature earlier, so the index should be higher. In order to determine the BMI of a teenager, it is also necessary to use a centile table.
What can BMI tell about your body?
Body mass index acts as a general statistical indicator, but it can serve as a starting point for achieving an ideal figure. Even if the obtained BMI is the norm according to the criteria, this does not mean that your body is in excellent condition. Of course, you don’t need to lose weight in this case, but you probably need a fitness program to tighten your body. If your index is slightly above normal, you do not need to exhaust yourself with a diet, the right diet and fitness will get you back in shape.
If the BMI is far from normal and close to obesity, you should seriously think about the problem and pull yourself together, because the point here is not only and not so much in external beauty. Being very overweight, you risk your health.
Recall again what is the body mass index. This is a coefficient showing how many kilograms are per 1 meter of the body. There is a simple formula for determining BMI, but if you don’t have time to calculate or don’t have a calculator at hand, you can always use the online calculator. It should be remembered that the norm of the index is determined differently for everyone, for men and women their own data. To determine the norm in children and adolescents, you should use the centile table for the appropriate age.
If you have determined the norm, and it turned out to be higher than expected, this does not always indicate excess weight. To get the correct BMI, the calculation should be carried out not only on the basis of height and weight, you should also take into account the characteristics of your body. If you are an athlete (athlete) and have a large muscle mass, your rate should be higher than for ordinary men and women. If your index turned out to be above the norm, this is not always a bad thing, the main thing is that you feel comfortable and like the state of your own body.
Content
Many representatives of the stronger and fairer sex are worried about the state of their own figure. To determine a parameter called body mass index, the calculation formula is a recognized medical and objective method. It allows you to find out the ratio of weight and height, to assess how these two indicators correspond to each other. The figure of the calculated body mass index according to the formula within the normal range means that the health of a person is not threatened by problems associated with overweight, and that his figure looks harmonious.
Formula for calculating body mass index
To calculate an indicator such as body mass index, the formula is a simple empirical relationship. Like other relative indicators, this criterion requires reservations when used in practice. The value can be significantly affected by the thickness of the bone tissue, the type of figure. Depending on the absence or presence of muscle mass, the same value of the indicator can correspond to both a taut sports and a dense figure.
Often, BMI adequately reflects the overall picture, can serve as a guideline in solving issues of weight loss or weight gain. To calculate this indicator, you need to divide your own weight in kilograms by the square of height in meters. If you are characterized by sagging body, overweight, but the index value (BMI) is within the normal range, focus on playing sports. If you want to lose a few pounds, then physical education should be combined with proper nutrition. Calculation of BMI is needed for such purposes:
- Being overweight or underweight can lead to health problems later on. For example, a lack of weight leads to the inability to get pregnant, the absence of menstruation, osteoporosis.
- The normal value of BMI can vary from 18.50 to 24.99: this figure increases with age.
- If after the calculation you have extra pounds, you should not panic. Nothing seriously threatens your health, but you can improve your condition: choose a set of exercises, start eating right.
- If the calculation by the formula showed the presence of obesity, consult your doctor.
Ideal body weight
The formula for calculating ideal body weight is designed to determine the optimal weight, which is a combination of the minimum probability of death from a number of diseases, for example, coronary disease heart, diabetes, hypertension, with a maximum life expectancy. The value of this indicator, according to the formula, depends on the gender, height, and physique of a person.
The ideal weight is considered to be the one that is statistically significantly combined with the maximum life expectancy. But the concepts of "normal body weight" and "ideal body weight" are not identical. The latter indicator is an abstract value that is typical only for a small proportion of the population of developed countries. It depends on factors, among which the determining factors are gender, height, type of human constitution, for example, normosthenic, asthenic, hypersthenic.
If we evaluate overweight in terms of ideal body weight, most of the population will be found to be obese to varying degrees. This is a consequence of the artificially created excitement around the whole industry. slim body, which creates demand for various products for weight loss. However, when calculating overweight in terms of normal weight, obesity will be detected in a quarter of the population, which is confirmed by numerous studies and is true. Normal weight may differ from ideal by 5-10%.
For women
The fair sex, who strive for the ideal, will be interested in such an indicator as ideal body weight. It is a prerequisite for healthy, active longevity, but still remains a theoretical value. This indicator is calculable. The well-known doctor Margarita Koroleva suggests proceeding from the indicator during the calculation normal weight according to Brokk's formula: for this, one hundred must be subtracted from height in centimeters. If 10% is subtracted from the obtained value, the ideal body weight will be obtained.
For men
Ideal body weight guarantees a man high level working capacity, mental, emotional stability, a good level physical development. The presence of excess weight is not always obvious, because there is a latent fullness or latent, which is present in people who seem slender at first glance. An objective indicator in the percentage of fat and bone muscle tissue is 9-15% fat for the male body, 12-20% for the female. When calculating the ideal weight for men, the following formula is used: BMI \u003d height - (100 + (height -100): 20).
For children and teenagers
The ideal weight for adolescents and children is the ratio of body weight compared to height, which guarantees a high life expectancy. This figure may be different for boys and girls, as the average proportion muscle mass higher in males than in females. In a child, the ideal weight is calculated by the formula: IM \u003d (R x D): 240, where R is height in cm, G is the circumference of the chest in cm, 240 is a constant coefficient.
Calculation of BMI by different methods
To calculate the body mass index by the formula, there are several methods. This makes it possible to find out the degree of correspondence between weight and height, whether a person has enough mass, whether there is a shortage or excess. The indicator was developed by the Belgian Adolf Ketele in 1869. Now the ability to calculate it has gained wide popularity due to the fact that excess weight is one of the most exciting, urgent problems of our time. If earlier fullness was considered an indicator of health, now it is a disease.
Brocca's formula
French anthropologist, surgeon Paul Brokk proposed his method in the 19th century. Standard formulas do not take into account the natural change in mass over time. Brokk included in the calculation data on the age category, information on the length of the body, the constitutional type of addition to which the subject belongs. By nature, it is conceived that weight changes with age. The value, which at a young age indicated extra pounds, eventually becomes the best indicator.
For people under forty, the French researcher recommends using the following formula: ideal weight = height (cm) - 110. If you are over forty, the following calculation method is suitable: height (cm) - 100. In addition to age, the formula should take into account height researched: the higher the person, the more he will weigh. This technique recommends using the "Brock-Brugsch growth index":
- if you are below 1.65 m, your ideal weight will be equal to "height (cm) - 100";
- with a person's height of 1.65-1.75 m, to calculate this indicator, it will be necessary to subtract the figure 105 from height (cm);
- if you are taller than 1.75 m, subtract 110 from your height (cm).
In addition to height, age, it is necessary to take into account the physique or constitutional type of a person. There are three of them - sthenic, normosthenic, hypersthenic. Normostenics are considered not too low and not very tall people with a normal ratio of limb length to height, average head and chest volumes. For such people, the indicator obtained by the Brocca formula is the ideal weight.
Asthenics are thin people with narrow bones, tall, pale skin. Representatives of this constitutional type should subtract 10% from the result obtained by the formula. If your appearance is more like hypersthenics: you are a broad-boned, stocky person with well-developed muscles, you should add 10% to the figure obtained.
Quetelet formula
Adolphe Quetelet was a Belgian mathematician and statistician. He proposed the BMI formula in the 19th century. With it, you can determine the degree of obesity or malnutrition, assess the possible risk of developing diseases, which is associated with the presence of excess weight. BMI according to the Quetelet formula is calculated as follows: BMI \u003d weight (kg): (height (m)) 2. The result obtained is compared with the following data:
- for ages 19-24 normal index considered 19-24;
- at 25-34 years old, the norm is 20-25;
- for people aged 35-44 - 21-26;
- the norm for 45-54 year old people is 21-27;
- at 55-64 years old, the normal value of the index is 21-28;
- for people 65 and over, the norm varies from 21 to 29.
Lorentz formula
The method for calculating BMI according to Lorentz is considered the simplest and most famous: you only need to know growth. His formula looks like this: ideal weight \u003d (height (cm) - 100) - (height (cm) - 150) / 2. The simplicity of this method of determination is considered not the only advantage. The concept of ideal weight is always relative. Any formula is derived by analyzing the results of statistical studies, where different parameters of people are compared. The data obtained can only serve as a rough guide.
The advantage of the Lorenz formula is that it gives an indicator that is close to the results of more complex calculation methods. However, this index does not take into account the body type of a person, of which experts distinguish three: for each, the mass norm varies. The age parameter is not taken into account, and depending on age, a different weight is considered normal.
The maximum allowable body weight depending on age
Undoubtedly, the fact that weight depends on age. It is directly related to the course of such a biological process as carbohydrate metabolism. With age, the metabolism of energy, substances, physical activity, decreases the volume of muscle tissue, metabolic rate. All this, together with a decrease in the activity of hormones, energy consumption contributes to weight gain. Its change with age is an inevitable, natural process. This dependence is clearly demonstrated by the table below, which shows the values for normosthenics.
Classification of obesity by BMI
Obesity is a disease that is characterized by the accumulation of excess weight due to excessive deposition of adipose tissue in certain places. fat people are at high risk for many diseases, among which the first place is occupied by ailments of the cardiovascular system. Depending on the value that will be obtained after calculating the BMI, you can determine the degree of obesity, if any, according to the following table:
|
Classification of health status depending on the body mass index |
health risk |
|||
|
over 25 years |
||||
|
Anorexia, ataroxic and nervous |
BMI does not reach 17.5, weight is less than 15% of normal |
Treatment of anorexia and weight gain by healthy eating |
||
|
underweight |
Under 18.5 |
Absent |
||
|
Excess body weight |
elevated |
Weight loss through a healthy diet and exercise |
||
|
Obesity of the first degree |
elevated |
Need to reduce body weight |
||
|
Obesity of the second degree |
||||
|
Obesity of the third degree |
Very tall |
|||
|
Obesity of the fourth degree |
40.0 and more |
41.0 and over |
Too high |
Urgent weight loss required |
BMI Calculator
The calculator helps to quickly determine the indicator, which is considered an indirect assessment of overweight or underweight, predisposition to the development of obesity. BMI is calculated for both men and women. To determine the indicator, enter the value of your weight (kg) and height (cm). Next, click on the "Calculate Index" button and your BMI value will appear in the "BMI" field. Compare the obtained data with the table above.
Attention! The information provided in the article is for informational purposes only. The materials of the article do not call for self-treatment. Only a qualified doctor can make a diagnosis and give recommendations for treatment, based on the individual characteristics of a particular patient.
Did you find an error in the text? Select it, press Ctrl + Enter and we'll fix it!Ecology of life. There are different formulas for determining the optimal ratio of weight and height. But all of them are very, very conditional, since they do not take into account many factors ...
There are different formulas for determining the optimal ratio of weight and height. But all of them are very, very conditional, since they do not take into account many factors: age, gender and physiological features person. Therefore, excess fat should be assessed not only by the conditional ratios presented in this table, but also by appearance, thickness of the skin and a number of other factors. With the same height and weight, one person may look full, the other - completely normal.
The objective parameter of an ideal body is the percentage of fat and musculoskeletal tissue. For men, the norm is 9 - 15% fat of the total body weight, and for women - from 12 to 20%.
Quetelet index
Knowing the Body Mass Index (BMI), one can judge obesity or underweight. The index is calculated for adult men and women from 20 to 65 years old. The results may be false for pregnant and lactating women, athletes, the elderly and adolescents (under 18). Among the many different methods for calculating ideal weight, the most popular method is the height-weight index, body mass index - Quetelet index.
Formula: body weight in kg divided by height in meters squared B / (P * P)
For example: height 170 cm, weight 65 kg. So 65: (1.7 * 1.7) = 22.5
The norm for men is 19-25. For women - 19-24.
|
Body mass index |
Classification |
Risk of comorbidities |
|
Less than 18.5 |
underweight |
Low (increased risk of other diseases) |
|
18.5 – 24.9 |
normal body weight |
Ordinary |
|
25.0 – 29.9 |
Overweight (preobesity) |
elevated |
|
30.0 – 34.9 |
Obesity I degree |
High |
|
35.0 – 39.9 |
Obesity II degree |
Very tall |
|
40.0 and more |
Obesity III degree |
Extremely high |
The Quetelet index shows well the amount of fat in the body, but does not indicate how fat is distributed, in other words, it does not give a visual-aesthetic picture. But you can check your body for ideality by another formula.
The distribution of fat throughout the body is determined by the ratio: the waist (at the level of the navel) divided by the volume of the buttocks.
- Norm for men: 0.85
- For women: 0.65 - 0.85.
Does age affect height-to-weight ratio?
The answer is unequivocal. Yes, of course it does. It has been proven that the weight of a man and a woman should gradually increase with age - this is a normal physiological process. Kilograms, which some people consider "superfluous", in fact, they may not be. You can use the formula to determine the optimal weight depending on age.
P - in this case, height, and B - age in years. Body weight \u003d 50 + 0.75 (P - 150) + (B - 20): 4
|
Height in cm |
Age |
||||||||||||||
|
20-29 |
30-39 |
40-49 |
50-59 |
60-69 |
|||||||||||
|
Floor |
|||||||||||||||
|
M |
AND |
M |
AND |
M |
AND |
M |
AND |
M |
AND |
||||||
|
150 |
51.3 |
48.9 |
56.7 |
53.9 |
58.1 |
58.5 |
58.0 |
55.7 |
57.3 |
54.8 |
|||||
|
152 |
53.1 |
51.0 |
58.7 |
55.0 |
61.5 |
59.5 |
61.0 |
57.6 |
60.3 |
55.9 |
|||||
|
154 |
55.3 |
53.0 |
61.6 |
59.1 |
64.5 |
62.4 |
63.8 |
60.2 |
61.9 |
59.0 |
|||||
|
156 |
58.5 |
55.8 |
64.4 |
61.5 |
67.3 |
66.0 |
65.8 |
62.4 |
63.7 |
60.9 |
|||||
|
158 |
61.2 |
58.1 |
67.3 |
64.1 |
70.4 |
67.9 |
68.0 |
64.5 |
67.0 |
62.4 |
|||||
|
160 |
62.9 |
59.8 |
69.4 |
65.8 |
72.3 |
69.9 |
69.7 |
65.8 |
68.2 |
64.6 |
|||||
|
162 |
64.6 |
61.6 |
71.0 |
68.5 |
74.4 |
72.2 |
72.7 |
68.7 |
69.1 |
66.5 |
|||||
|
164 |
67.3 |
63.6 |
73.9 |
70.8 |
77.2 |
74.0 |
75.6 |
72.0 |
72.2 |
70.7 |
|||||
|
166 |
68.8 |
65.2 |
74.5 |
71.8 |
78.0 |
76.6 |
76.3 |
73.8 |
74.3 |
71.4 |
|||||
|
168 |
70.8 |
68.5 |
76.2 |
73.7 |
79.6 |
78.2 |
79.5 |
74.8 |
76.0 |
73.3 |
|||||
|
170 |
72.7 |
69.2 |
77.7 |
75.8 |
81.0 |
79.8 |
79.9 |
76.8 |
76.9 |
75.0 |
|||||
|
172 |
74.1 |
72.8 |
79.3 |
77.0 |
82.8 |
81.7 |
81.1 |
77.7 |
78.3 |
76.3 |
|||||
|
174 |
77.5 |
74.3 |
80.8 |
79.0 |
84.4 |
83.7 |
82.5 |
79.4 |
79.3 |
78.0 |
|||||
|
176 |
80.8 |
76.8 |
83.3 |
79.9 |
86.0 |
84.6 |
84.1 |
80.5 |
81.9 |
79.1 |
|||||
|
178 |
83.0 |
78.2 |
85.6 |
82.4 |
88.0 |
86.1 |
86.5 |
82.4 |
82.8 |
80.9 |
|||||
|
180 |
85.1 |
80.9 |
88.0 |
83.9 |
89.9 |
88.1 |
87.5 |
84.1 |
84.4 |
81.6 |
|||||
|
182 |
87.2 |
83.3 |
90.6 |
87.7 |
91.4 |
89.3 |
89.5 |
86.5 |
85.4 |
82.9 |
|||||
|
184 |
89.1 |
85.5 |
92.0 |
89.4 |
92.9 |
90.9 |
91.6 |
87.4 |
88.0 |
85.8 |
|||||
|
186 |
93.1 |
89.2 |
95.0 |
91.0 |
96.6 |
92.9 |
92.8 |
89.6 |
89.0 |
87.3 |
|||||
|
188 |
95.8 |
91.8 |
97.0 |
94.4 |
98.0 |
95.8 |
95.0 |
91.5 |
91.5 |
88.8 |
|||||
|
190 |
97.1 |
92.3 |
99.5 |
95.8 |
100.7 |
97.4 |
99.4 |
95.6 |
94.8 |
92.9 |
|||||
Brock's formula: identifying height-age-weight relationships
One of the most popular methods for calculating ideal weight is Brock's formula. It takes into account the ratio of height, weight, body type and age of a person.
Brock's formula for people under 40 is "height (in cm) minus 110", after 40 years - "height (in cm) minus 100".
At the same time, people with an asthenic (thin-boned) body type should subtract 10% from the result, and people with a hypersthenic (broad-boned) body type should add 10% to the result.
How to determine your body type?
The physique is usually divided into THREE types:
- normosthenic,
- hypersthenic,
- asthenic.
In order to find out what your body type is, it is enough to measure the circumference of the thinnest place on the wrist with a centimeter. The resulting circumference in centimeters will be the necessary indicator (Soloviev's index).
|
Solovyov index |
body type |
Typical for this body type |
|
|
for men |
for women |
||
|
18-20 cm |
15-17 cm |
normosthenic (normal) |
the physique is distinguished by the proportionality of the main dimensions and their correct ratio |
|
over 20 cm |
over 17 cm |
hypersthenic (broad-boned) |
In people with a hypersthenic (wide-boned) body type, the transverse dimensions of the body are much larger than in normosthenics and especially asthenics. Their bones are thick and heavy, their shoulders, chest and hips are wide, their legs are short. |
|
less than 18 cm |
less than 15 cm |
asthenic (thin-boned) |
In people with an asthenic (thin-boned) body type, the longitudinal dimensions prevail over the transverse ones: the limbs are long, the bone is thin, the neck is long, thin, the muscles are poorly developed. |
Nagler's formula for the ratio of height and weight
There is a Nagler formula that allows you to calculate the ideal ratio of weight and height. 152.4 cm of height should account for 45 kilograms of weight. For every inch (that is, 2.45 cm) over 152.4 cm, there should be another 900 grams, Plus another 10% of the resulting weight.
John McCallum's Girth Ratio Formula
One of the best formulas created by expert methodologist John McCallum. The McCallum formula is based on measuring the girth of the wrist.
1. 6.5 wrist circumference is equal to chest circumference.
2. 85% of the chest circumference is equal to the circumference of the hips.
3. To get the waist circumference, you need to take 70% of the chest circumference.
4. 53% of the circumference of the bust is equal to the circumference of the thigh.
5. For the girth of the neck, you need to take 37% of the girth of the chest.
6. The circumference of the biceps is about 36% of the circumference of the chest.
7. The girth for the lower leg is slightly less than 34%.
8. The girth of the forearm should be equal to 29% of the girth of the chest.
But not all physical data will exactly correspond to these ratios, the numbers have an average, average value.
A few more options for the ratio of height and weight
- The physique is considered ideal if the waist circumference is 25 cm less than the circumference of the hips, and the circumference of the hips is approximately equal to the circumference of the chest.
- The circumference of the waist should be equal to "height in centimeters - 100". That is, a woman with a height of 172 cm will be proportionately folded if the waist circumference is 72 cm, the hip and waist circumference is about 97 cm, that is, if she wears a clothing size of 48.
- If the circumference of the hips is less than the circumference of the chest, and the circumference of the waist is less than the circumference of the hips by 20 cm, then such a figure is called an "apple". If the chest circumference is less than the hip circumference, and the waist circumference is 30 cm or more less than the hip circumference, this is a pear-shaped figure.
- For women and girls of average height - from 165 to 175 cm - this observation turned out to be fair. Their waist circumference in centimeters is approximately equal to their weight in kilograms. One kilogram of weight loss gives a decrease in the waist by one centimeter.
As you can see, there are many ways to calculate the optimal ratio of your height and body weight, depending on a variety of factors. But no matter how you do the calculations, the main thing is that your weight is COMFORTABLE for yourself. So that you can easily and freely feel in your own body, love yourself and enjoy life according to full program! - without getting depressed from the fact that during the calculations you (and suddenly!) found out an “overabundance” or “lack” of kilograms.published
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Do I need to lose weight? Before making such a decision, calculate your ideal weight, the value of which, among other things, depends on age, gender, body type, level physical activity, profession, water balance, etc.
Before you begin to reduce excess body weight, you need to answer yourself one simple but very important question: “Do I need to lose weight at all?” Often, the excessive pursuit of the ideal figure ends with health problems and mental breakdowns. Remember that the ideal weight is the one you feel most comfortable with. If you wake up in the morning and feel healthy and happy, if you look at your own reflection in the mirror, and you like it, if you are happy, efficient, positive, self-confident - then is there any point in changing something? For what? To meet the standards that the media imposes on us?
If you are serious about the problem of normalization of weight and the improvement of health associated with this, then you should approach this task wisely, having previously obtained the necessary knowledge.
So, the body mass index (BMI), invented by the Belgian sociologist and statistician Adolphe Quetelet, is recognized throughout the world as the simplest and most adequate indicator that allows you to quickly assess body weight. BMI is recommended by WHO as the main criterion for assessing nutritional status, especially when conducting large-scale screenings.
Body mass index (BMI) - a value that allows you to assess the correspondence of body weight to a person's height:
BMI (kg / m 2) \u003d Body weight (kg) / Body height (m 2)
But, like all simple and affordable methods, the calculation of BMI has its drawbacks. It should be borne in mind that excessive or insufficient muscle development can affect the accuracy of determining BMI.
How to correctly evaluate the result, taking into account age, gender and physical state? Below are the answers to the 4 most common questions about ideal weight.
4 most common questions about ideal weight
1. Does the value of the ideal weight depend on age?
Yes it depends. Over the years, the intensity of metabolic processes in the body naturally decreases (by 0.5% per year). Therefore, it is obvious: in order to maintain your ideal weight with age, you must either reduce the calorie content of the daily diet every year, or increase physical activity. Failure to follow this simple rule will result in overweight and subsequently to obesity.
2. Does the value of the ideal weight depend on the physique?
Yes it depends. Before you start calculating your ideal weight, you need to determine your body type.
The physique is of 3 types:
- asthenic,
- normosthenic,
- hypersthenic.
Solovyov's index allows you to determine the type of physique by the girth of the wrist (in centimeters).
Asthenic (thin-boned). The circumference of the wrist in women is less than 16 cm, in men it is less than 18 cm.
People with an asthenic body type are thin, not inclined to be overweight due to accelerated exchange substances, are distinguished by narrow hips and chest. As a rule, growth is not lower than average, with elongated limbs and a "swan" neck. They may suffer from a lack of strength and endurance, complex due to excessive thinness (and this problem is much more difficult to solve than being overweight).
Normosthenic. The circumference of the wrist in women is 15-17 cm, in men 18-20 cm.
Those who are lucky enough to have a normosthenic type are proportionately built, usually of average height.
Hypersthenic. The circumference of the wrist in women is more than 17 cm, in men it is more than 20 cm.
Women of hypersthenic physique can safely justify that they have broad bone. Their bones are really heavy, such ladies have broad shoulders, massive chest And long legs. They can safely choose professions where needed. physical strength and endurance. It is this one that will stop a galloping horse, and enter a burning hut.
3. Does the value of the ideal weight depend on gender?
Yes, it depends.
Calculation of the ideal weight using the Lorenz formula(taking into account gender and height).
Ideal weight for men = (height - 100) - (height - 152) x 0.2.
Ideal weight for women = (height - 100) - (height - 152) x 0.4.
Height in centimeters, weight in kilograms.
Example.
For a man with a height of 160 cm, the ideal weight is calculated as follows:
(160 - 100) - (160 - 152) x 0.2 = 60 - 8 x 0.2 = 60 - 1.6 = 58.4 kg
For a woman with a height of 160 cm, the ideal weight is calculated as follows:
(160 - 100) - (160 - 152) x 0.4 = 60 - 8 x 0.4 = 60 - 3.2 = 56.8 kg
As you can see, with the same height, the ideal body weight varies depending on gender.
4. What formulas for calculating the ideal weight are the most accurate?
The most accurate are formulas that take into account gender, age, physique (at least height) or special tables developed by hygienists.
Brock's method named after French doctor at the end of the 19th century, the most popular among the methods for quickly assessing weight.
Broca's formula for people with a normal physique:
weight (ideal) = height - 100 (with height less than 165 cm);
weight (ideal) = height - 105 (with a height of 166 - 175 cm);
weight (ideal) = height - 110 (with height above 175 cm).
If you have an asthenic body type, then the result obtained is reduced by 10%, with a hypersthenic body type, increase by 10%.
Example.
With a height of 170 cm, the ideal weight for normosthenics will be: 170 - 105 = 65 kg
For asthenics: 58.5 kg (-10%).
For hypersthenics: 71.5 kg (+ 10%).
P.S. Now you can calm down: not everyone is given by nature to have model parameters, do not demand the impossible from yourself. Everyone has their own ideal weight.
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