The Claim
Beta-alanine supplementation improves submaximal running efficiency in adolescent runners, as evidenced by reduced heart rate and respiratory exchange ratio during a 1500-meter run at 80% VO2peak, without altering perceived exertion or lactate levels.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Adolescent runners who take beta-alanine show lower heart rate and respiratory exchange ratio during a 1500-meter run at 80% of their maximum oxygen capacity, with no change in perceived effort or lactate levels.
See the scientific wording
Beta-alanine supplementation improves submaximal running efficiency in adolescent runners, as evidenced by reduced heart rate and respiratory exchange ratio during a 1500-meter run at 80% VO2peak, without altering perceived exertion or lactate levels, suggesting enhanced metabolic efficiency at moderate intensities.
Beta-alanine helps muscles make more carnosine, which soaks up acid produced during running. This keeps the muscle environment less acidic, so the muscles can use energy more efficiently without working harder, lowering heart rate and breathing rate during moderate runs.
What the research says
1 studyTeen runners who took beta-alanine had lower heart rates and breathed more efficiently during a moderate-speed run, meaning their bodies used less energy to do the same work — even though they didn’t feel less tired or produce less lactic acid.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.