Body Composition Program 2025 – 400 Free Practice Questions to Pass the Exam

Lean body mass is the correct choice because it specifically refers to the total weight of the body minus the weight of fat mass. This means it encompasses the weight of muscles, bones, water, and organs, thus providing a measurement that reflects all non-fat components of body composition. Lean body mass does not directly indicate the amount of body fat present; rather, it is a part of the total body composition framework used to assess health and fitness levels.

Waist circumference, body fat percentage, and skinfold thickness are all measurements that offer direct insights into the amount and distribution of body fat. Waist circumference is a simple measure that can suggest how much visceral fat an individual has, which is associated with health risks. Body fat percentage quantifies the actual proportion of fat in the body, offering a clear indicator of body composition, while skinfold thickness uses calipers to estimate subcutaneous fat layers and indirectly assess body fat levels.