Doctors used to look at height and weight tables to determine if a person was in a normal range of weight, but that is not enough to determine the state of health.
According to the Center for Disease Control and Prevention (CDCP by its acronym in English) today Americans are heavier than in the 60s, and there are reasons for concern because obesity increases the risk of a series of problems such as coronary heart disease, stroke, diabetes and some cancers.
Researchers have identified several measures that can help you easily identify those who are at risk for these problems, including mass index body, the circumference of the waist The rate waist / hip and waist / height rate body. The standards for “normal” change as new research identifies risk groups more precisely.
Although there is a table showing the standard measures of waist and hips in relation to height and weight, these measures can be calculated through other measures available.
Body mass index
The body mass index (BMI) is a measure of whether someone is overweight or suffering from obesity. The formula for calculating BMI uses height, weight and constant to shed body fat percentage. The BMI of a person falls within certain ranges, indicating if it has a normal weight, below normal, overweight or obese. According to a study published in 2003 in the “International Journal of Obesity” BMI ranges are very broad and fail to identify people who have a normal BMI but excessive abdominal fat, putting them at risk for metabolic problems.According to the National Heart, Lung and Blood, the extent of IMC also it has some limitations, for example it may overestimate the weight of athletes or people with large muscle mass, and underestimate the percentage of fat in older people who have lost muscles.
BMI and waist circumference
While overweight can increase your risk of problems cardiovascular, the location of fat is another risk factor. The accumulated fat around the waist is more dangerous than fat elsewhere in the , such as thighs or hips. Doctors are increasingly using BMI combined with waist circumference to assess the risk of a patient. The men with a waist greater than 40 inches (100 cm) circumference, and women with a waist greater than 35 inches (87.5 cm) circumference have a higher risk of heart disease and diabetes.
Rate waist / hips
Some question that BMI is a good measure of an increased risk of coronary heart disease and diabetes. A different way of calculating the risk dividing waist circumference by hip circumference. A study published in 2006 by the “American Journal of Clinical Nutrition” tried to understand the relationship of BMI, waist circumference and waist / hips mortality rate in the elderly. The researchers found that high BMIs not put people at risk as well as a high rate of waist / hips. Another 2008 study published in “Stroke: Journal of the American Heart Association” concluded that men with rates of waist / hip greater than 0.97, and women with higher rates to 0.84 faced an increased risk of stroke.
Rate waist / body height
Waist / body height rate is calculated by measuring the waist circumference and dividing it by body height in the same unit. For example, a man with a waist of 36 inches (90 cm) and a height of 75 inches (187.5 cm) will have a waist / body height of 0.48 rate. A report from a 2003 study published in “Annals of Epidemiology” wanted to determine the best measure of cardiovascular risk in a large group of adults under medical supervision. After the risk factors correlated with various health problems, they showed that the rate of waist / stature is a simple and good indicator of a number of cardiovascular risk factors. The recommendation is that the circumference of your waist should not exceed half your height.