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Lean Mass Buffer Capacity

Meaning

Lean Mass Buffer Capacity describes the functional reserve of muscle and other non-fat tissue that an individual possesses, which acts as a protective physiological resource against metabolic stress, catabolic states, and hormonal imbalances. A robust lean mass buffer is crucial for maintaining a high basal metabolic rate, optimizing insulin sensitivity, and providing a readily available amino acid pool for immune function and tissue repair. Clinically, a higher capacity signifies superior metabolic resilience and is strongly correlated with improved healthspan and longevity. This capacity is a direct measure of physical and metabolic robustness.