Leucina e recuperação muscular

Leucine and muscle recovery

Leucine and muscle recovery

You may have already heard about the different types of essential nutrients for the human body, and leucine is one of them that deserves special attention. As an essential branched-chain amino acid (BCAA), leucine plays a crucial role in muscle recovery and growth after exercise. Here we will dive deeper into this amino acid and understand why its adequate consumption is so vital for optimizing training results!

Leucine is an essential branched-chain amino acid (BCAA) that plays a fundamental role in muscle recovery after intense physical exercise. As one of the nine essential amino acids that the human body cannot produce, leucine must be obtained through diet or supplementation. Its importance in protein synthesis, especially after physical exercise, has been the subject of research and emphasis in the scientific and sports community.

Muscle recovery after strenuous exercise is a crucial phase for developing and maintaining muscle mass. Leucine plays a key role in this process due to its role in activating the mTOR (mammalian target of rapamycin) signaling pathway, which regulates protein synthesis and, consequently, muscle growth.

After intense training, muscle fibers suffer micro-injuries, triggering a repair and growth response. Leucine acts as a trigger for the mTOR pathway, stimulating protein synthesis and the formation of new muscle fibers. Furthermore, leucine also helps reduce muscle catabolism, minimizing the degradation of muscle proteins during the recovery process.

To adequately stimulate protein synthesis, it is recommended to consume protein sources rich in leucine immediately after training, whether through food or supplements. The combination of leucine with other essential amino acids promotes an environment conducive to the repair and growth of muscle fibers.

A study published in the "Journal of the International Society of Sports Nutrition" (2012) demonstrated that leucine supplementation after exercise resulted in a significant increase in muscle protein synthesis in young individuals. Furthermore, a study published in the "American Journal of Clinical Nutrition" (2009) investigated the effects of ingesting protein with different concentrations of leucine after resistance training. The results indicated that the higher proportion of leucine in the protein consumed was associated with greater activation of the mTOR pathway and, consequently, greater protein synthesis.

But Gabi, what would be the ideal amount to consume? Well, a study published in "The Journal of Nutrition" in 2011 investigated the effects of different doses of leucine on protein synthesis after exercise in young adults. The results suggested that a dose of 2.8 grams of leucine was sufficient to maximize the muscle protein synthesis response. However, it is worth noting that this dosage may vary according to the individual's muscle mass, exercise intensity and other factors. Another study, published in the "Journal of the International Society of Sports Nutrition" in 2012, examined the effects of supplementing branched-chain amino acids (BCAAs), including leucine, after resistance training. The researchers concluded that a dose of BCAAs containing about 3.5 grams of leucine was effective in increasing protein synthesis and reducing post-exercise protein degradation.

Although more research is still needed to determine the precise dose of leucine after exercise, available evidence suggests that a leucine intake in the range of 2 to 3.5 grams may be an effective approach to promoting muscle recovery and maximizing synthesis. protein after training.

In short, leucine emerges as a prominent amino acid in muscle recovery after physical exercise, and when combined with other nutrients and a balanced and adequate diet, it promotes a satisfactory environment for muscle recovery. After all, it is during recovery that we guarantee the next training session.


Thanks for reading and see you in the next post.


Gabi.