- Relevant
- How do I know the perfect body weight
- How to calculate weight and length
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How to calculate the ideal weight
There are many easy equations to calculate the ideal weight, but these equations determine one weight, and therefore specialists prefer to determine a range of targeted health weights, because there is no specific ideal weight that is proportional to all ages and races, and in any case the following equations can be used to measure the ideal weight approximately:(١)
- Men’s ideal weight equation: Ideal weight per kilogram = 48 + 1.1 x (length per centimeter − 150 centimeters)
- The ideal weight equation for women: Ideal weight per kilogram = 45 + 0.9 x (length per centimeter − 150 cm)
Example: The perfect approximate weight is estimated at a man of 170 centimeters, as follows:
Ideal weight = 48 + 1.1 x (170 − 150) = 70 kg
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Knowing the ideal weight for age and length
In addition to ideal weight equations, there are many ways that can be used to know the appropriate weight for the length that must be reached, including the following:(٢)
BMI
BMI for adults
This indicator is calculated by dividing the weight in kilograms on the square of length per meter, and it is a physical scale for assessing the amount of total fat in the body, but it may not be commensurate with some groups and the amount of fats in their bodies well, and among these groups: the elderly, the athletes who have a large muscular structure, and some of the old groups.(٣)
While the implications of values resulting from the body mass account for adult women and men:(٤)
Value (kilogram per square meter) |
Classification |
Less than 18.5 |
Weight loss |
From 18.5 to 24.9 |
Natural weight |
From 25.0 to 29.9 |
Weight gain |
30 or more |
Obesity |
Children’s BMI
To determine what is the perfect body mass for children, the natural amount of fats changes in the bodies of children and adolescents depending on age and sex, so the result of their body mass index is not interpreted as in adults; Rather, it is translated into a group of centenary segments in special growth plans for every gender and age (in English: Centers for Disease Control and Preference).(٥)
These slides are used to classify weights as follows:(٥)
Celsius |
Classification |
Less than 5 |
Weight loss |
From 5 to less than 85 |
Natural weight |
From 85 to less than 95 |
Weight gain |
95 or more |
Obesity |
The waist ratio to length
One of the ways that can help predict the risk of heart disease, diabetes, and deaths more effectively from the body mass index, and calculated by dividing the waist surroundings along the body.(٦)
If a person’s waist is less than half of its length, that is, the result of the division is 0.5 or less than that; This means that a person is close to a healthy weight, and the risk of developing life -threatening health complications is low.(٦) This is because the accumulation of fat in the abdominal area and around it is one of the causes of heart, liver, and kidneys.(٧)
In general, it should be noted that if the waist is more than 101 centimeters later for men, and is more than 88.9 centimeters older than non -pregnant women, this means an increased risk of complications of obesity.(٦)
The ratio of the waist to the hip
The waist surrounding ratio can be used to the hip ocean to see if a person suffers from overweight, or that he may be exposed to health risks because of this.(٨)
This ratio is calculated by dividing the waist circumference measurement by measuring the hip circumference; Which helps to determine the amount of fat stored in the waist, hip and buttocks, unlike the body mass index that compares weight with length only without determining the area of fat gathering, and through the scale of the waist surroundings to the surroundings of the hip can assess the risk of heart disease and other health problems.(٩)
The following table shows the possibility of health risks based on the values resulting from this scale:(٨)
The ratio for women |
The ratio is for men |
The risk of developing health problems |
0.80 or less |
0.95 or less |
low |
From 0.81 to 0.85 |
From 0.96 to 1.0 |
Moderate |
0.86 or higher |
1 or higher |
High |
The percentage of fat in the body
Bodies and the fats and muscles they contain are different based on several factors; Including the lifestyle, diet, physical activity, and because of the different weight of fat from one person to another, and the different weight of body fat from the weight of its muscles; The indicators that depend on body weight only in determining the amount of fats in it as a body mass indicator may not give precise results in some people.(٢)
It should be noted that there are many more accurate ways to estimate the percentage of fat in the body by using one of the computers on the Internet that require measuring both body weight, length, hip environment, waist surroundings, forearm surroundings, and wrist surroundings, and a doctor or personal trainer can be visited to know this, in addition to the possibility of using special tools to measure the thickness of fats in certain areas of the body Calipers.(٢)
There is also a more advanced way; Like some sensors that broadcast an electric current across the body to calculate the percentage of fat in it,(٢) After knowing the percentage of fat in the body, it can be compared to the following table to see if the percentage of fat is normal, healthy or excessive, and humiliated with the consultation of age difference:(١٠)
the age |
The percentage of healthy fats for females |
The percentage of healthy fats for males |
From 20 to 39 years old |
From 21% to 32% |
From 8% to 19% |
From 40 to 59 years old |
From 23% to 33% |
From 11% to 21% |
From 60 to 79 years old |
From 24% to 35% |
From 13% to 24% |
As it becomes clear from the previous table, the percentage of fat in the body increases naturally as the age increases, and the percentage of fat in women is higher than men, and it is worth noting that the body fat is divided into two types, namely:(١٠)
- Basic fat; Which plays a role in many body functions and is essential for survival.
- Stored fat; It protects the internal organs in the regions of the abdomen and chest, and the body uses it to provide energy when necessary.
People are classified according to the percentage of fat in their bodies to several categories, based on the recommendations of the American Countil on Exercise,(٦) The less fat in the body, the more physical fitness is more fit, and the clarification of this comes:(١١)
Classification |
The percentage of fat from the body of women |
The percentage of fat from the men’s body |
The basic fat percentage |
From 10% to 13% |
From 2% to 5% |
Athletes |
From 14% to 20% |
From 6% to 13% |
Clearly decent non -athletes |
From 21% to 24% |
From 14% to 17% |
Those who have an acceptable fat percentage |
From 25% to 31% |
From 18% to 24% |
Those with obesity |
Higher than 32% |
Higher than 25% |
How to reach a healthy weight
A person’s weight can be affected by many different factors; Like the surrounding environment, behavior or habits, genes and family history, and the way the body turns food and oxygen into energy, which is called metabolism.(١٢)
In general, the healthy way to reach the ideal weight is to follow a healthy diet, and if a person suffers from obesity or weight gain; It is preferable to reduce 500 calories of daily calories, increase physical activity, and reduce the time to relax.(١٢)
If a person suffers from a lack of weight, he will do the opposite; It is preferable to increase the number of calories eaten daily; This is through a balanced diet, in addition to eating snacks nutritious between the main meals and the choice of high -fat species such as full -fat milk, until it reaches the ideal weight for it, as weight deficiency can lead to a lack of vitamins, minerals and other nutrients that the body needs to maintain its health.(١٣)
How do I maintain a healthy weight? To maintain a healthy weight, it is necessary to balance the number of calories that enter the body by eating and drinking, and the number of calories the body uses to carry out breathing, digestion, physical activities, etc., and it is not required to achieve a complete balance between them every day but rather achieve it over a period of time.(١٢)
Common questions about the ideal weight
The following questions show the ideal body measurements for both men and women:
What is the ideal weight for a woman
As mentioned earlier, the ideal weight of women can be calculated through the following equation:(١)
Ideal weight per kilogram = 45 + 0.9 x (length per centimeter − 150 centimeters)
What is the perfect weight for a man
As mentioned earlier, the ideal weight of a man can be calculated through the following equation:(١)
Ideal weight per kilogram = 48 + 1.1 x (length per centimeter − 150 centimeters)
What is the concept of ideal weight
The ideal weight of a certain length is associated with the expected age,(١٤) It is also not possible to say that every person has one ideal weight, as this is affected by many factors; Light, gender, body composition and the fats and muscles it contains, the size of the structure, etc.(٦) There is no doubt about the importance of reaching and preserving healthy weight, as it can help prevent many diseases and contribute to controlling them.(٢) In addition to its importance for the health of the body in general, while the risk of serious health problems increases; Like heart disease, type 2 diabetes, high blood pressure in people with overweight or obese.(١٢)
the reviewer
- ^ A for Tot Courtney Peterson, Diana Thomas, George Blackburn And Others (30-3-2016), “Universal equation for estimating ideal body weight and body weight at any BMI”, The American Journal of Clinical NutritionIssue 5, Folder 103, Page 1203–1197. Edited.
- ^ A for Tot W C Ashley Marcin (7-12-2018), “Are You a Healthy Weight? Weight Ranges by Height and Sex”، www.healthline.comRetrieved 17-5-2020. Edited.
- ↑ “BMI (body mass index)”, www.healthengine.com.au,16-2-2007، Retrieved 17-5-2020. Edited.
- ↑ “Body Mass Index (BMI)”, www.healthywa.wa.gov.auRetrieved 17-5-2020. Edited.
- ^ A for “Normal weight ranges: Body mass index (BMI)”, www.cancer.org,5-2-2016، Retrieved 17-5-2020. Edited.
- ^ A for Tot W C Yvette Brazier (18-1-2020), “How much should I weigh for my height and age?”، www.medicalnewstoday.comRetrieved 17-5-2020. Edited.
- ↑ “Assessing Your Weight”, www.cdc.gov,28-1-2020، Retrieved 17-5-2020. Edited.
- ^ A for Stephanie Watson (26-4-2017), “What Is the Waist-to-Hip Ratio?”، www.healthline.comRetrieved 17-5-2020. Edited.
- ↑ Jennifer Scott (16-10-2019), “Calculating Your Waist to Hip Ratio”، www.verywellfit.comRetrieved 17-5-2020. Edited.
- ^ A for Michael Woods (26-10-2016), “Your Body Fat Percentage: What Does It Mean?”، www.winchesterhospital.orgRetrieved 17-5-2020. Edited.
- ↑ “Percent Body Fat Calculator”, www.acefitness.orgRetrieved 17-5-2020. Edited.
- ^ A for Tot W “Aim for a Healthy Weight”, www.nhlbi.nih.govRetrieved 17-5-2020. Edited.
- ↑ Paul McArdle, “Healthy weight for adults”، www.bupa.co.uk,1-2018، Retrieved 17-5-2020. Edited.
- ↑ Ian Yuan And Ashish Sinha (2012), Anesthesia and Uncommon Diseases (Sixth Edition)Canada: Saunders, Page 215-224, Part 6. Edited.