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Skeletal Muscle Protein Synthesis

Meaning

Skeletal Muscle Protein Synthesis (MPS) is the fundamental metabolic process involving the creation of new contractile proteins within muscle cells, a process essential for muscle repair, growth, and adaptation to physical loading. This anabolic mechanism is directly regulated by a complex interplay of hormonal signals, particularly insulin, testosterone, and growth factors like IGF-1, and is critical for maintaining physical competence and metabolic health throughout the lifespan. A robust MPS rate is a core pillar of vitality.