http___www.nhs.uk_tools_documents_healthy_weight_v3_accessible.html.xml
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Индекс на телесната маса Индексът на телесната маса (съкратено ИТМ, на английски: body mass index, BMI) e медико-биологичен показател, който служи за определяне на нормалното, здравословно тегло при хора с различен ръст и за диагностициране на затлъстяване и недохранване. Индексът на телесната маса се измерва в килограми на квадратен метър и се определя по следната формула: където: - — индекс на телесната маса; - — тегло в килограми; - — височина в метри. Така ИТМ на човек с ръст 1,73 м и тегло 75 кг е: Световната здравна организация указва следните норми за индекс на телесната маса[1], независимо от възрастта, пола или други индивидуални характеристики: Вижте също[редактиране | edit source] Източници[редактиране | edit source] - ↑ WHO. Physical status: the use and interpretation of anthropometry. Report of a WHO Expert Committee. WHO Technical Report Series 854. Geneva: World Health Organization, 1995. Външни препратки[редактиране | edit source] - ((en)) ИТМ класификация (официален сайт на СЗО)
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BMI healthy weight calculator A good way to check if you're a healthy weight is to use the Body Mass Index (BMI). Your BMI is a measure of whether you're a healthy weight for your height. It can indicate whether you're at raised risk of the serious health problems that are linked to being overweight, such as type 2 diabetes, heart disease and certain cancers. For further reading on BMI, click here. To understand the results, it helps to know how they are calculated. Adult results For adults, the body mass index (BMI) is used to calculate whether a person is underweight, a healthy weight, overweight or obese for their height. BMI allows for natural variations in body shape, giving a healthy weight range for a particular height. The calculation divides the adult's weight in kilograms by their height in metres squared. Black, Asian and other minority ethnic groups Please be aware that members of black, Asian and other minority ethnic groups are likely to be at increased risk of health problems at a lower BMI than the white population (i.e. below BMI 25). Eating disorders Please note, that if you are suffering from an eating disorder, body mass index and the results provided by the BMI calculator do not apply. Please seek further advice from your GP. Child results For children, BMI varies a lot with age, so the child's age (and whether they are a boy or a girl) have to be taken into account. To do this, the BMI is covered into a BMI centile, as on a child growth chart. The BMI centile then indicates whether a child's BMI is within the healthy range or not. NHS Choices 2013 BMI healthy weight calculator - Most children will have a BMI between the 25th and 75th centiles. - BMI below the 2nd centile ('underweight') is unusual. It may reflect malnutrition but it may simply reflect the fact a child is small in build. - A BMI above the 91st centile suggests 'overweight'. - A child above the 98th centile is described as 'very overweight' in the National Child Measurement Programme or 'obese' when you use this calculator. Obese is a medical term used by doctors and health professionals to describe levels of overweight that pose a risk to future health. - BMI can very a lot over time, often due to errors in measurement. If you are worried about your child's weight, or a change in their weight, visit your GP.