Muscle Mass

Muscle mass increases when resistance training is combined with sufficient amino acids, particularly essential amino acids, to fuel muscle protein synthesis. This leads to repair and growth of muscle fibers, enhancing strength and lean body mass.

Increased muscle mass is achieved through the process of muscle protein synthesis (MPS). Resistance training creates microscopic damage to muscle fibers, stimulating the body to repair and rebuild them. This process requires sufficient amino acids, the building blocks of protein. Consuming adequate protein and essential amino acids, particularly leucine, after resistance training provides the necessary substrates for MPS, leading to muscle growth and increased lean body mass.