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Lean Muscle Mass Growth

Meaning

Lean Muscle Mass Growth is the physiological process of increasing the total volume of non-fat tissue, primarily skeletal muscle fibers, through the synthesis of new contractile proteins. This process, scientifically termed muscle hypertrophy, is a critical biological marker of metabolic health, strength, and longevity, moving beyond aesthetic concerns to represent functional reserve and insulin sensitivity. The rate and quality of this growth are directly influenced by the precise interaction of mechanical load, nutrient availability, and the anabolic hormonal milieu.