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Muscle Protein Synthesis

Meaning

Muscle Protein Synthesis (MPS) is the fundamental biological process of creating new contractile proteins within muscle fibers from available amino acid precursors. This anabolic process is essential for muscle repair, adaptation, and growth, representing the positive side of the muscle protein turnover equation. Maintaining a net positive balance of MPS over Muscle Protein Breakdown (MPB) is crucial for preserving lean body mass, particularly in the context of aging and recovery.