Measured BMI will detect adolescents with overweight and obesity with greater accuracy, but even using measured height and weight may lead to underestimation of overweight/obesity and bias.
Is BMI The best measure of obesity?
Is BMI the best measure of obesity? Firstly, it is a quick and easy way of working out whether you are in the healthy category by using two simple measures – weight and height. Most doctors say it is the best method they have, it’s pretty accurate, can be measured simply in clinic and is acceptable to patients.
What is the best indicator of obesity?
- The most basic method, and the most common, is the body mass index (BMI). …
- The BMI and other so-called “field methods”-among them, waist circumference, waist-to-hip ratio, skinfold thicknesses, and bioelectrical impedance-are useful in clinics and community settings, as well as in large research studies.
What is a better indicator than BMI?
Waist-to-height ratio (WHtR)
WHtR is more accurate than BMI because it takes central fat into consideration. Central fat is important because it collects around the organs in your midsection and has been closely linked to conditions such as heart disease.
What are the disadvantages of BMI?
Since muscle weighs more than fat, BMI isn’t accurate in patients with extreme amounts of muscle. And this can cause unnecessary concern or a faulty sense of security for many adults. For example, a fit person with dense muscle could be categorized as overweight based on BMI.
Why do doctors still use BMI?
Body mass index, or BMI, has been used for over 100 years to help health professionals decide whether a patient is overweight or underweight. It is used in population studies, by doctors, personal trainers, and others.
How do you test for obesity?
These exams and tests generally include:
- Taking your health history. …
- A general physical exam. …
- Calculating your BMI . …
- Measuring your waist circumference. …
- Checking for other health problems. …
- Blood tests.
What are the common causes of obesity?
9 Most common causes of obesity
- Physical inactivity. …
- Overeating. …
- Genetics. …
- A diet high in simple carbohydrates. …
- Frequency of eating. …
- Medications. …
- Psychological factors. …
- Diseases such as hypothyroidism, insulin resistance, polycystic ovary syndrome, and Cushing’s syndrome are also contributors to obesity.
What are the 2 formulas used to figure out BMI?
Calculating BMI Using the English System
- Formula: weight (lb) / [height (in)]2 x 703.
- Calculation: [weight (lb) / height (in) / height (in)] x 703.
What is a healthy weight not BMI?
If your BMI is less than 18.5, it falls within the underweight range. If your BMI is 18.5 to 24.9, it falls within the normal or Healthy Weight range. If your BMI is 25.0 to 29.9, it falls within the overweight range. If your BMI is 30.0 or higher, it falls within the obese range.
How do you find your real BMI?
To calculate your BMI, divide your weight in pounds by your height in inches squared, then multiply the results by a conversion factor of 703. For someone who is 5 feet 5 inches tall (65 inches) and weighs 150 pounds, the calculation would look like this: [150 ÷ (65)2] x 703 = 24.96.
How accurate is BMI if you are muscular?
There are a myriad of reasons why BMI isn’t as accurate a measure of health as many of us were brought up to believe, but one of the main ones is that BMI can’t distinguish between fat and muscle. A pound of fat takes up a much larger volume on the body than a pound of muscle, even though they of course weigh the same.
What BMI indicates a normal weight?
How is BMI interpreted for adults?
|18.5 – 24.9||Normal or Healthy Weight|
|25.0 – 29.9||Overweight|
|30.0 and Above||Obese|
Does age affect BMI?
For adults ages 20 years and older, BMI incorporates weight and height, but it does not take age or sex into account. A woman tends to have more body fat than a man with the same BMI. Likewise, an older person tends to have more body fat than a younger person with an equal BMI.
Is a BMI of 29.2 bad?
Body mass index (BMI) is a rough estimate of body fat percentage. It is useful as a rough guide, but it has limitations. For example, people with high muscle mass may have a high BMI without high body fat.