Anthropometrics Measurement: Body Mass Index (BMI)
May 21, 2023To measure a client's BMI, follow these steps:
1. Ask the client to remove their shoes and any bulky clothing.
2. Measure the client's weight in kilograms (kg) using a scale.
3. Measure the client's height in meters (m) using a measuring tape or a wall-mounted height measurement device.
4. Calculate the client's height squared (height x height = height^2).
5. Divide the client's weight by their height squared. The formula is BMI = weight (kg) / height2 (m2).
6. The result is the client's BMI.
Here are the BMI ranges and their corresponding categories:
- Underweight: BMI below 18.5
- Normal weight: BMI between 18.5 and 24.9
- Overweight: BMI between 25 and 29.9
- Obesity (Class 1): BMI between 30 and 34.9
- Obesity (Class 2): BMI between 35 and 39.9
- Extreme obesity (Class 3): BMI of 40 or higher
It's important to note that BMI is not always an accurate measure of health and should be used in conjunction with other health indicators. For example, a person with a high muscle mass may have a high BMI but still be healthy, while a person with a low muscle mass and a normal BMI may be at risk for health problems. It's also important to consider other factors such as age, gender, and overall health when interpreting BMI results.
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