The Claim

Two weeks of daily 12-gram beta-alanine supplementation has no effect on intermittent endurance, sprint performance, blood lactate clearance, or perceived exertion in trained futsal players, despite time-dependent improvements in endurance test performance occurring in both supplemented and placebo groups.

Source: High-dose beta-alanine supplementation for two weeks did not enhance intermittent endurance or sprint performance in trained futsal players

What the research says

Supports is higher

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

Supports
68score
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.

Cause and effect
1 study reviewed
In plain English

In trained futsal players, taking 12 grams of beta-alanine daily for two weeks does not improve endurance during short bursts of activity, sprint speed, lactate removal, or how hard they feel they are working, even though both the supplement and placebo groups improved over time.

See the scientific wording

Two weeks of daily 12-gram beta-alanine supplementation does not improve intermittent endurance, sprint performance, blood lactate clearance, or perceived exertion in trained futsal players, despite a significant time-dependent improvement in endurance test performance across both supplemented and placebo groups, suggesting that short-term high-dose beta-alanine is unlikely to enhance performance in this population under these conditions.

Why this might work

Beta-alanine enters muscle cells and combines with another amino acid to form carnosine, which neutralizes acid buildup during intense exercise. This should delay fatigue, but in trained futsal players taking a high dose for two weeks, the acid buffering did not improve their ability to run, sprint, recover, or feel less tired.

Supported mechanismbased on 1 study

What the research says

1 study

  1. Study: High-dose beta-alanine supplementation for two weeks did not enhance intermittent endurance or sprint performance in trained futsal players

    Scientists gave futsal players a daily supplement for two weeks and found it didn't help them run farther, sprint faster, recover better, or feel less tired compared to players who took a sugar pill — even though everyone got a bit better just from practicing.

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

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