Lean Body Mass

Definition

Lean body mass is the total weight of your body minus all the weight from your body fat. It includes the weight of muscles, bones, organs, and other non-fat tissues.

Scientific / Technical Definition

Lean body mass (LBM) refers to the comprehensive weight of all body components minus fat. This encompasses the mass of muscles, bones, ligaments, tendons, internal organs, blood, and extracellular fluids. LBM is a critical factor in calculating an individual's basal metabolic rate (BMR) and is an essential component in evaluating total body composition.

Benefits

• Helps in assessing overall fitness levels.
• Contributes to metabolic health and basal metabolic rate.
• Supports healthy function of organs and systems.
• Useful for designing personalized fitness and nutrition plans.

Examples

• Muscle mass gained through strength training.
• Bone mass, which contributes to overall weight excluding fat.
• The mass of organs like the heart and lungs.

Additional Information

• importance: Lean body mass is crucial for determining body composition, which is important for setting fitness goals and assessing overall health.

Related Terms

• Body Fat Percentage
• Basal Metabolic Rate
• Body Composition
• Muscle Mass

References

• The Importance of Lean Body Mass in Clinical Nutrition
• Assessing Lean Body Mass for Health and Performance Metrics