The Claim

Ingestion of leucine-enriched essential amino acids and carbohydrates after resistance exercise in young, untrained men sustains elevated phosphorylation of Akt at Ser473 at 2 hours post-exercise, while resistance exercise alone results in a return of Akt Ser473 phosphorylation to baseline levels, indicating prolonged activation of upstream signaling pathways.

Source: Leucine-enriched essential amino acid and carbohydrate ingestion following resistance exercise enhances mTOR signaling and protein synthesis in human muscle.

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
46score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

How it works
1 study reviewed
In plain English

After resistance training, consuming a specific combination of amino acids and carbohydrates helps maintain a molecular signal (Akt phosphorylation at Ser473) for longer than exercise alone, which allows this signal to return to normal levels. This sustained signal may support continued cellular processes related to muscle growth.

See the scientific wording

Leucine-enriched essential amino acid and carbohydrate ingestion after resistance exercise in young, untrained men sustains elevated Akt phosphorylation at Ser473 at 2 hours post-exercise, whereas exercise alone leads to a return to baseline, suggesting prolonged activation of upstream signaling that may support sustained anabolic signaling.

Why this might work

After a workout, drinking a mix of amino acids and sugar keeps a key growth signal turned on longer than working out alone. The amino acid leucine and the sugar together trigger two separate but overlapping pathways that activate a protein called Akt, which then keeps another protein, mTOR, active. This sustained activity tells muscle cells to keep building new proteins for hours longer than they would otherwise.

Verified mechanismbased on 1 study

What the research says

1 study

  1. Study: Leucine-enriched essential amino acid and carbohydrate ingestion following resistance exercise enhances mTOR signaling and protein synthesis in human muscle.

    After working out, drinking a special shake with amino acids and sugar keeps a key muscle-building signal (Akt) turned on longer than just working out alone, which helps your muscles keep growing.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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