What is the ratio of weight and height is normal?

The Optimum ratio of weight and height were interested in the humanity always. There are many methods of calculation of ideal body weight, but none of them is not entirely accurate. You must take into account not only numbers, but also the health, and appearance. Not always the person with the theoretically ideal values has a beautiful body, and Vice versa, a great figure could be the one who does not fit into the standards of weight and height taken now.

At the same weight, height and age of two people of the same sex can feel quite different – one will seem thinner than the other. Or an athlete, muscular with a slender and toned figure may weigh more than loose overweight people the same height, because the muscles are heavier than fat. Sometimes seemingly thin man weighs more than the one who looks more well-fed, due to heavy bones.

Most of the calculation formulas of normal weight are not suitable for people too small or too tall. People of the same height but of different ages can not have the same body mass, because with age there is a gradual increase in weight, which is the norm. Body fat in different people are distributed in the body is not the same even with the same weight, and this affects the body type.

For a Long time the most famous and simple means of determining the weight of a person is considered a formula Field Brocka: the growth of minus one hundred. This method did not take into account the sex, age and body structure. Modern standards of weight and height do not correspond to the values obtained by this formula, at least for young people. Therefore, if we are talking about people under 30, made “the growth of minus one hundred” to reduce by 10% or to subtract from growth 110. For those who have crossed the 50-year milestone, the result of Brocku increase by 5-7%. Sometimes the formula changes with the growth: of growth below 165 cm, subtract 100 from 165cm up to 175cm – 105, above 175cm – 110. Formula Brocka is adjusted based on the type of addition. For Nomokonova the type of the result remains unchanged for uskorennogo – from the result is subtracted 10% for big-boned – added 10%.

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Another popular method how to determine  the optimal ratio of weight and height, was proposed by Adolf Quetelet in the 19th century. This method is to take the mass index, which is calculated according to the formula: weight in kilograms divided by height, squared. If the resulting figure is in the range from 18 to 25, body weight can be considered optimal.

Some scientists believe that the focus should not be on the ratio of weight and height in numbers and percentage of body fat. To do this, measure the vertical crease of belly fat at 2.5 cm from the navel. If the thickness of folds is up to 2.5 cm, body fat within normal limits, over 2.5 – excess. Consequently, its weight can be considered optimal, regardless of its value, if the thickness of the fat folds is 1-2.

As is known, normal weight – this is not only aesthetics, but also the ability to avoid many diseases. The most important thing for a person to have the ideal ratio of weight and height, and safe for health fat percentage and visual appeal, which does not always depend on numbers. There is a simple way of determining a valid complete. Is the measurement of waist girth. For women, this value must be no more than 80 cm for men – 95 cm waist girth greater than 85 cm in women and 100 cm in men, the risk of various diseases increases. Is considered more dangerous if waist reaches or exceeds the circumference of the hips, which is usually with a large stomach. Determine normal weight by the ratio of waist and hips. To do this, waist circumference is divided by the hip girth. The result should not be more than 0.8 for women and 0.9 for men.