one who aspires to the ideal figure, trying to follow the fluctuations in his weight.This makes it much easier if you know the framework of normal body weight at a certain height.When you know what normal weight growth of 165 cm (170 and so on. D.) To be much easier to control yourself and do not overdo it with the weight loss.For extremely low or high body weight can cause irreparable damage to health.
How are frames?
Immediately it is worth noting that the figures a healthy weight for one person may
differ from those of another, even if their growth is exactly the same.An important role in determining the weight of the framework plays a sex.For men, the weight figures are much higher than for women.This is due to the structure of the male body - namely, with the severity of the bone.For example, normal weight with height 170 cm for women is about 55-60 kg, and the weight figures for a man with the same growth range between 63-67 kg.Which stick trims, minimum or maximum, the choice of each individual.These limits physicians and determine the parameters at which the body will feel good.
simple way to calculate the normal weight
The easiest way to determine normal weight during the growth of a particular person as follows: subtract from the growth rate of one hundred and the resulting differences to take away another 10% for men and 15% for women.This formula was derived by French anthropologist Paul Brock.The data obtained is very rough, but you can estimate the boundaries and in this way.
Basically the formula is suitable for people with average height.In addition, this method does not show the distribution of the weight on the figure.Even under normal terms a person may be full of legs or other body parts.When calculating the ideal weight you need to take into account the many factors that may affect the final result.So it was invented several other ways to determine the normal range of body weight, which is more accurate.
Body Mass Index (BMI)
This figure was derived by Belgian sociologist Adolphe Kyutlom.It is still used in medicine and sports, although proven that the method is not completely accurate.The formula for calculating BMI is as follows.
BMI = weight (kg) / rost2 (m)
The result is a two-digit number, which has a transcript from the World Health Organisation.If the index ranges 18,5-25, the weight is normal and poses no health risk.BMI in the range 25-30 are talking about overweight.If the resulting figure exceeds the mark of 30, this indicates a certain degree of obesity.It is worth noting, readings below 18.5 may indicate underweight, which for women is fraught with unpleasant consequences up to infertility.The men are underweight may also have a negative impact.
adjustments in the formula BMI
BMI reflects reality only in the case of medium height and normal build.That is a normal weight with an increase in 168 cm for men this formula can still be calculated, but if less, then from the resulting figures should take another 10%.The same goes for women and shorter than 154 cm.
For women above 174 cm and women, the growth of which more than 188 cm, the result of calculation of normal weight according to the above formula will need to adjust.To this was added to the resulting index of 10%.Adjustments to the formula were added in the course of its use, when it became clear that the growth of people above or below average results are not reliable.
Example of calculation of normal weight according to the formula BMI
consider how to calculate the normal weight during the growth of 180 cm. To do this, substitute the formula BMI growth and limits the body mass index.The result:
18,5 (25) = X / 3,24, where X - normal weight with growth of 1.80 m.
By simple calculations we find that within the normal weight for a given height is 60-81 kg.For women, this figure must be added 10% and get a range of 66-89 kg.It is worth noting that this is the medical records of normal weight, which poses no threat to human health.For a comfortable feeling and beautiful reflection in the mirror some people need to seek lower or upper mark.For example, a healthy young man 180 cm tall Weight 60 kg is considered to be low, but not fatal.
Factors influencing BMI
Many factors affect the growth of normal weight at 1.60 m (and any other).For example, it takes into account that with age BMI can grow, and the figure - to be in the normal range.
also takes into account a person's lifestyle.For athletes, this index does not reflect the real picture, because muscle is much heavier fat.And it turns out that the person is actively engaged in sports all my life, have a BMI of over 30. But in fact extra kilos he may not be, and BMI does not show the degree of obesity, and weight of muscle mass.
Build also plays an important role in determining the normal values of weight.For example, normal weight at height of 175 cm women is approximately 60 kg.This figure can be safely increased by five kilograms for women with big bones.Occupation model assumes figure with a narrow bone.Weight models rarely exceeds 50 kg, while their growth should not be less than 175 cm. Often the desire to get closer to these forms leads to depletion of the body.
Drawbacks BMI
The main drawback of this technique are very approximate figures on the rate of body weight.Also, using the BMI is impossible to determine the rate of weight gain for pregnant women and children.The ratio of height and weight of the child not the same as an adult, so even taking into account all the adjustments for the growth of 164 cm below the formula can not be applied.
normal weight at height of 160 cm from the formula BMI can reach 64 kg, but what is medically acceptable for an adult, a child can be dangerous.In addition to the growth in the index of the normal weight of the child should be taken into account his age.
Other methods of determining the rate of weight
In use, body mass index, it became clear that this figure does not talk about the ideal figure.The findings indicate a healthy weight from the medical point of view, but at the same height and weight of one person may look fit and slim, and the other - the full and loose.This depends on the percentage of body fat of the total weight and its distribution in the body.For example, normal weight with height 170 cm for a sports person can be ten kilograms more than the one who leads a sedentary lifestyle.
to determine the percentage of body fat is used more modern techniques, but widely used only two.The first method consists in that after the body passed a current pulse of low power.The rate of passage of the current pulse through the fat layer is much lower than through the muscles and the bones.The more fat, the slower the signal.This method is common due to its accuracy, but until recently was only available in health centers, as used sophisticated professional equipment.Now you can carry out this measurement even at home with the help of weights, including such a function.
The second method is to measure the special device, reminiscent of the caliper, fat folds in different parts of the body.Experimentally derived data are compared with the developed tables and calculated the degree of obesity.Electronic devices for such measurements is called a caliper.It automatically analyzes the data and outputs the result immediately.The advantage of this method is the portability of the caliper, which takes up very little space.As in the first case, to make it possible to measure and calculate the normal weight at height 165 cm or any other.
