topicBeta Alanine Muscle Recovery Meta-Analysis
claimImportantly, mechanistic evidence indicates that performance loss during repeated maximal efforts reflects an integrated disturbance in muscle function—encompassing substrate availability, metabolite/ionic perturbations, excitation–contraction coupling, and only later, more pronounced acid–base disruption—rather than a single dominant metabolite (–).
evidence level1
citationLiang Weibao (2026)
sourceNo ergogeniceffect of β-alanine on repeated sprint ability: a systematic review and multilevel meta-analysis of randomized controlled trials
topicBeta Alanine Muscle Recovery Meta-Analysis
claimConsistent with this mechanism, contemporary meta-analytic evidence indicates the most reproducible ergogenic effects in high-intensity exercise tasks of approximately 1–4 min, where acid–base perturbation is more likely to be performance-limiting ().
evidence level1
citationLiang Weibao (2026)
sourceNo ergogeniceffect of β-alanine on repeated sprint ability: a systematic review and multilevel meta-analysis of randomized controlled trials
topicBeta Alanine Muscle Recovery Meta-Analysis
claimBiopsy-based repeated-sprint experiments show that recovery of subsequent sprint performance is tightly associated with PCr resynthesis even when muscle pH remains depressed, suggesting that acid–base normalization is not a prerequisite for short-term restoration of repeated-sprint capacity (,).
evidence level1
citationLiang Weibao (2026)
sourceNo ergogeniceffect of β-alanine on repeated sprint ability: a systematic review and multilevel meta-analysis of randomized controlled trials
topicBeta Alanine Muscle Recovery Meta-Analysis
claim1 2 3 4 5 7 Repeated sprint ability (RSA) is a defining performance attribute in intermittent sports, characterized by repeated maximal or near-maximal efforts separated by brief recovery, with an ensuing decline in mechanical output across bouts (,).
evidence level1
citationLiang Weibao (2026)
sourceNo ergogeniceffect of β-alanine on repeated sprint ability: a systematic review and multilevel meta-analysis of randomized controlled trials
topicBeta Alanine Muscle Recovery Meta-Analysis
claimIndividual exercise tolerance is defined as the amount of physical exertion that can be sustained before task disengagement and can be increased through appropriate training strategies [,].
evidence level4
citationStrasser Barbara (2026)
sourceDietary interventions interact with the perception of effort and enhance endurance performance: a brief narrative review
topicBeta Alanine Muscle Recovery Meta-Analysis
claimWe then integrate evidence on the ergogenic effects of various dietary interventions with existing knowledge on perception of effort, focusing on how these interventions may limit the development of fatigue during endurance exercise and thereby influence effort perception.
evidence level4
citationStrasser Barbara (2026)
sourceDietary interventions interact with the perception of effort and enhance endurance performance: a brief narrative review
topicBeta Alanine Muscle Recovery Meta-Analysis
claimSuch adjustments result in impaired time trial performance when perceived effort rises [], and improved performance when perceived effort is reduced [].
evidence level4
citationStrasser Barbara (2026)
sourceDietary interventions interact with the perception of effort and enhance endurance performance: a brief narrative review
topicBeta Alanine Muscle Recovery Meta-Analysis
claim1 2 3 4 5 1 1 Individual aerobic endurance capacity determines how long and at what intensity everyday activities, such as climbing stairs or gardening, as well as strenuous sports, including running, cycling, or swimming, can be performed [].
evidence level4
citationStrasser Barbara (2026)
sourceDietary interventions interact with the perception of effort and enhance endurance performance: a brief narrative review