Lectures

Body Mass Index (BMI)

by Georgina Cornwall, PhD
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    So let us next consider what techniques are used to measure health. And I profess in the US and by the USGA and our general medical practices. And there are two main techniques that we use. Varying opinions on the currentness of the techniques but Body Mass Index is sort of we go to -- we don't need to actually measure fat concentration for this or fat percentage for this or lean body mass. That's one of the criticisms of it. We are simply taking kilograms and dividing them by the height in metre squared. And that gives us a body mass index number. Now if you are doing it in a metric system, it's all simple and easy. You could either choose to convert your mass from imperial to metric and use kilograms. And height from inches to metres, and use meters or you could take those figures and multiply them by a factor of 703. Depends which you think is easier to do. But that's a number to keep in mind, if you're going to use pounds and inches as a measurement for body mass index. So let's take a body mass index of an individual who is 160 pounds and 67 inches tall using our American system we multiply by imperial system. We multiply that by a factor of 703. We get the same number whether we use imperial or metric. And that is a body mass index of 25. When we look at that body mass index, their standard charts, you can find them all over the place. And you'll see that they are broken down into categories of underweight, normal, overweight and obese. And these categories get quite a bit of criticism because obviously we haven't taken into consideration lean body mass versus fat body...

    About the Lecture

    The lecture Body Mass Index (BMI) by Georgina Cornwall, PhD is from the course Nutrition. It contains the following chapters:

    • Body Mass Index (BMI)
    • Waist-to-Hip Ratio

    Included Quiz Questions

    1. Body Mass (lbs) / Height (in) squared X 703
    2. Body Mass (kg) / Height (m) squared
    3. Body Mass (lbs) / Height (in) x 703
    4. Body Mass (kg) / Height (cm) x 703
    5. Body Mass (kg) / Height (cm) squared x 703
    1. False
    2. True

    Author of lecture Body Mass Index (BMI)

     Georgina Cornwall, PhD

    Georgina Cornwall, PhD


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