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Muscle Mass Accrual

Meaning

Muscle Mass Accrual is the physiological process of increasing the net volume of skeletal muscle tissue, achieved when the rate of muscle protein synthesis (anabolism) consistently exceeds the rate of muscle protein breakdown (catabolism). This is a critical marker of anabolic health, directly influencing basal metabolic rate, physical strength, and overall longevity. Successful accrual requires a synergy of mechanical tension, adequate nutritional input, and optimized hormonal signaling.