What is a common measurement used to assess body fat percentage?

Hydrostatic weighing is considered one of the most accurate methods for assessing body fat percentage. This technique involves weighing a person both on land and while submerged in water. The difference in weight is used to calculate body density, which, along with other factors like age and sex, can be used to estimate body fat percentage. This method is based on the principle that fat tissue is less dense than water, allowing for a detailed analysis of body composition.

The accuracy of hydrostatic weighing makes it a preferred method among fitness professionals and researchers when precise measurements are needed. Other methods, while commonly used, do not provide the same level of precision in body fat assessment.