2025 NCSF Body Composition Complete Practice Test

Question: 1 / 400

What are the main components of total body composition?

Water mass and bone density

Fat mass and lean body mass

The main components of total body composition refer to the different types of tissues that make up an individual's body. Fat mass and lean body mass represent the two primary categories used to evaluate body composition.

Fat mass comprises all the fat in the body, which serves important roles in energy storage, insulation, and hormone regulation. Lean body mass includes everything else that is not fat, primarily muscles, organs, bones, and fluids. This differentiation is crucial for understanding health and fitness levels, as a higher proportion of lean body mass typically indicates better metabolic health and physical performance.

While other options may include components related to body composition, they do not capture the essential dichotomy of fat mass and lean body mass that is paramount in assessing body composition effectively.

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Protein and carbohydrate mass

Muscle mass and total body weight

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