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Basic Concepts. Evaluation of body weight

Is it important to know if my weight is correct? The answer is, without a doubt, yes.
Excess weight can notably affect our quality of life and even our life expectancy, so it is worthwhile exercising certain control over it, although without getting ourselves too worried about it. There are currently three internationally agreed methods for evaluating whether or not our weight is within normal limits:

All provide valuable information about our risk of cardiovascular and other associated diseases.

A very interesting complement to evaluation of the Body Mass Index is the calculation of our waist circumference and the so-called “waist/hip ratio”, since they assess the regional distribution of fat..

Body Mass Index (BMI)

What is BMI?

This is a figure which expresses the kg in our body per square metre. So, if our BMI is 22.5, it means that each square metre of our body weighs 22.5 kg. This information equates the population since it rules out the effect that height has on weight.

The so-called Body Mass Index is currently the most agreed upon tool for evaluating whether or not our weight is within normal limits. From now on we will refer to it by its abbreviation, BMI. You can find references to it with its abbreviation in English: BMI (Body Mass Index).

How do we calculate our BMI?

It’s simple: you have to divide your weight, expressed in kg, by your height, expressed in metres and squared. Let’s look at an example: a person weighs 65 kg and is 1.73 m tall. So, to calculate their BMI, you have to divide 65 by 1.732 (or 1.73 x 1.73, which is the same).

If the figure ranges between 18.5 and 24.9, the person is considered to have a normal or healthy weight.

Calcula tu IMC

Waist circumference

The waist circumference should be measured at the midline between the last lower rib and the iliac crest (upper “point” of the hip bone), while standing.

If the measurement is greater than 82 cm in women or 95 cm in men, there is considered to be a risk of developing type 2 diabetes, high blood pressure or cardiovascular diseases.

It is considered to be a risk if the measurement is greater than 82cm. in women or 95 cm. in men.

Waist/hip ratio

The waist/hip ratio evaluates the risk of suffering certain diseases which are very common in the West, such as a heart attack.

It is calculated by dividing our waist measurement (see section “Waist circumference”) by the circumference of our hips (the widest circumference over the buttocks at the level of the greater trochanters – hip bones).

There is considered to be risk if the value is greater than 1 in men and 0.9 in women.


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