Those who strive for an ideal figure, try to follow the fluctuations in their weight. This is much easier to do if you know the limits of normal body weight for a certain height. When you know what a normal weight with a height of 165 cm (170, etc.) should be, it is much easier to control yourself and not go too far with losing weight. After all, excessively low or high body weight can cause irreparable damage to he alth.
How are frames determined?
Immediately it should be noted that the indicators of normal weight for one person may differ from those for another, even if their height is exactly the same. An important role in determining the weight framework is played by gender. For men, weight indicators are an order of magnitude higher than for women. This is due to the peculiarity of the structure of the male body, namely, with the severity of the bones. For example, normal weight with a height of 170 cm for a woman is about 55–60 kg, and for a man, weight indicatorswith the same height, they fluctuate between 63–67 kg. What bar to adhere to, minimum or maximum, the choice of each person individually. These limits are set by doctors and determine those indicators at which the body will feel good.
Easy way to calculate normal weight
The easiest way to determine the normal weight for the height of a particular person is by the following formula: subtract one hundred from the growth rate and subtract another 10% for men and 15% for women from the resulting difference. This formula was developed by the French anthropologist Paul Brock. The data is very approximate, but you can estimate the boundaries in this way.
Basically, the formula is suitable for people with average height. In addition, this method does not show the distribution of weight over the figure. Even with normal measurements, a person may have full legs or other parts of the body. When calculating the ideal weight, there are many factors that can affect the final result. Therefore, several other methods for determining normal body weight indicators have been devised that are more accurate.
Body mass index (BMI)
This indicator was developed by the Belgian sociologist Adolf Cuetl. It is still used in medicine and sports, although it has long been proven that the method is not absolutely accurate. The formula for calculating body mass index looks like this.
BMI=Weight (kg)/height2 (m)
The result is a two-digit number, which has its own interpretation from the Worldhe althcare organizations. If the index ranges from 18.5–25, then the weight is considered normal and does not pose a he alth risk. BMI values in the 25-30 range indicate overweight. If the resulting figure exceeds 30, this indicates a certain degree of obesity. It is worth noting that indicators below 18.5 may indicate a lack of body weight, which for a woman is fraught with unpleasant consequences, including infertility. Men can also be affected by being underweight.
BMI adjustments
Body mass index reflects reality only in the case of average height and normal build. That is, the normal weight with a height of 168 cm for a man can still be calculated using this formula, but if it is lower, then another 10% should be subtracted from the resulting figure. The same goes for women below 154 cm.
For women over 174 cm and men over 188 cm, the normal weight calculation result from the above formula will need to be adjusted. To do this, add 10% to the obtained indicator. Adjustments to the formula were added during its use, when it became clear that for people taller or shorter than the average, the results are unreliable.
Example of calculating normal weight using the BMI formula
Let's consider how to calculate the normal weight with a height of 180 cm. To do this, we substitute the growth rate and the limits of the body mass index into the BMI formula. The result is:
18, 5 (25)=X/3, 24, where X is the normal weight for a height of 1.80 m.
By simple calculations, we find that the limits of normal weight for a given height are 60–81 kg. For women, you need to add 10% to this figure and you get a range of 66-89 kg. It is worth noting that these are medical indicators of normal weight, which does not pose a threat to human he alth. For comfortable well-being and a beautiful reflection in the mirror, some people need to strive for a lower or upper mark. For example, for a he althy young man 180 cm tall, a weight of 60 kg is considered low, but not fatal.
Factors affecting BMI scores
Many factors affect normal weight for 1.60m height (and anyone else). For example, it is taken into account that with age, the BMI indicator may increase, and the figure may remain within the normal range.
The lifestyle of a person is also taken into account. For athletes, this index does not reflect the real picture, since muscles are much heavier than body fat. And it turns out that a person who has been actively involved in sports all his life has a BMI over 30. Although in fact he may not have extra pounds at all, and BMI does not show the degree of obesity, but the weight of muscle mass.
Physique also plays an important role in determining normal weight. For example, the normal weight for a woman with a height of 175 cm is approximately 60 kg. This indicator can be safely increased by five kilograms for women with a wide bone. The profession of a model involves a physique with a narrow bone. Models rarely weigh more than50 kg, while their height must be at least 175 cm. Often the desire to get closer to such forms leads to exhaustion of the body.
Disadvantages of the BMI method
The main disadvantage of this technique is too approximate data on the norm of body weight. Also, with the help of BMI, it is impossible to determine the norm of weight for pregnant women and children. A child's height-to-weight ratio is not the same as an adult's, so even with all adjustments for height below 164 cm, the formula cannot be applied.
Normal weight with a height of 160 cm according to the BMI formula can reach 64 kg, but what is medically acceptable for an adult can be dangerous for a child. In addition to height, a child's age should be taken into account in the normal weight indicator.
Other methods for determining the norm of weight
In the process of using the body mass index, it became clear that this indicator does not indicate an ideal figure. The data obtained reflects only a normal weight from a medical point of view, but with the same height and weight, one person may look fit and slender, and the other full and loose. It depends on the percentage of body fat from the total mass and its distribution throughout the body. For example, a normal weight with a height of 170 cm for an athletic person can be ten kilograms more than for someone who leads a sedentary lifestyle.
Several modern methods are used to determine the percentage of body fat, but onlytwo. The first method is that a low-power current pulse is passed through the body. The rate of passage of the current pulse through the fatty layers is much lower than through the muscles and bones. And the more fat, the slower the signal goes. This method is widespread due to its accuracy, but until recently was only available in medical centers, as sophisticated professional equipment was used. Now you can take this measurement even at home with the help of scales that include such a function.
The second method is to measure fat folds in different parts of the body with a special device resembling a caliper. The data obtained experimentally are compared with the developed tables and the degree of obesity is calculated. An electronic device for such measurements is called a caliper. It automatically analyzes the received data and immediately gives the result. The advantage of this method is the portability of the caliper, which takes up very little space. As in the first case, with the help of it you can take measurements and calculate the normal weight with a height of 165 cm or any other.
