Multiple Choice
In assessing weight-related health risk, one problem with using body mass index (BMI) is that it:
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10. Energy Balance: Body Weight, Obesity, & Eating Disorders
Assessing Weight Related Health Risk
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In assessing weight-related health risk, what does body mass index (BMI) measure?
A
A ratio of weight to height squared that estimates weight status (a proxy for body fatness)
B
Resting metabolic rate (calories burned at rest)
C
The distribution of body fat between the waist and hips
D
The percentage of body weight that is fat tissue measured directly
Verified step by step guidance1
Understand that Body Mass Index (BMI) is a numerical value derived from a person's weight and height, used to estimate their weight status.
Recall the formula for BMI, which is calculated as the ratio of weight in kilograms to height in meters squared: \(BMI = \frac{weight\ (kg)}{height\ (m)^2}\).
Recognize that BMI serves as a proxy for body fatness, helping to categorize individuals into weight status groups such as underweight, normal weight, overweight, or obese.
Note that BMI does not measure resting metabolic rate, fat distribution, or directly measure body fat percentage; it is a simple ratio used for population-level assessments.
Conclude that BMI is best described as a ratio of weight to height squared that estimates weight status, rather than a direct measurement of body fat or metabolic activity.
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