Bachelor of Health Science (BHS) Degree Practice Exam

Which method provides a reasonable measurement of body fat?

1. Waist-to-hip ratio

2. Body Mass Index (BMI)

3. Skinfold measurements

4. Bioelectrical impedance analysis

The correct answer is: Body Mass Index (BMI)

Body Mass Index (BMI) is a widely used method for assessing an individual's body fat based on their height and weight. It provides a simple numerical measure that can indicate whether a person falls within a healthy weight range, is underweight, overweight, or obese. The BMI calculation is straightforward and requires only basic information, making it accessible for population-level studies, as well as for personal health assessments. While it is important to note that BMI does not directly measure body fat and can sometimes misclassify muscular individuals as overweight or obese, it still serves as a valuable screening tool. This is why it is often recommended for use in clinical settings, as it provides a reasonable estimation for many individuals and can help identify those who may be at risk for health issues associated with excessive body fat. Other methods listed, like waist-to-hip ratio, skinfold measurements, and bioelectrical impedance analysis, also have their merits in assessing body fat. However, they may require more specialized training, equipment, or interpretation compared to the straightforward BMI calculation. As such, while BMI is not a perfect measure, it is generally accepted as a practical initial assessment of body fat across diverse populations.