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Título
β-Alanine Supplementation in Combat Sports: Evaluation of Sports Performance, Perception, and Anthropometric Parameters and Biochemical Markers—A Systematic Review of Clinical Trials
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
Nutrients
Número de la revista
17
Datos de la obra
Fernández-Lázaro, D., Fiandor, E. M., García, J. F., Busto, N., Santamaría-Peláez, M., Gutiérrez-Abejón, E., Roche, E., & Mielgo-Ayuso, J. (2023). β-Alanine Supplementation in Combat Sports: Evaluation of Sports Performance, Perception, and Anthropometric Parameters and Biochemical Markers—A Systematic Review of Clinical Trials [Review of β-Alanine Supplementation in Combat Sports: Evaluation of Sports Performance, Perception, and Anthropometric Parameters and Biochemical Markers—A Systematic Review of Clinical Trials]. Nutrients, 15(17). Multidisciplinary Digital Publishing Institute (MDPI). https://doi.org/10.3390/NU15173755
Editor
MDPI
Fecha
2023
Abstract
[EN] β-alanine does not have an ergogenic effect by itself, but it does as a precursor for the
synthesis of carnosine in human skeletal muscle. β-alanine and carnosine together help improve
the muscles’ functionality, especially in high-intensity exercises such as combat sports. Therefore,
β-alanine could be considered a nutritional ergogenic aid to improve sports performance in combat
athletes. We aimed to critically review clinical trial evidence on the impact of β-alanine supplementation on sports performance, perception, and anthropometric parameters, as well as circulating
biochemical markers in combat athletes. This systematic review was conducted following the specific
methodological guidelines of the Preferred Report Items for Systematic Reviews and Meta-Analyses
guidelines (PRISMA), the PICOS question model, the Critical Review Form of McMaster, and the
PEDro scale. Furthermore, the Cochrane risk-of-bias assessment tool was used. The search was
carried out in the SCOPUS, Web of Science (WOS), and Medline (PubMed) databases for studies
published from the beginning of the database until July 31, 2023. Of the 41 registers identified, only
7 met the established criteria and were included in this systematic review. Overall, performance
parameters related to strength, power, total exercise work capacity, and combat-specific parameters
were significantly improved (p < 0.05). Perception parameters increased non-significantly (p > 0.05).
Regarding biochemical parameters, carnosine increased significantly (p < 0.05), pH decreased nonsignificantly (p > 0.05), and the results for blood bicarbonate and blood lactate were heterogeneous.
Finally, there was a non-significant (p > 0.05) improvement in the anthropometric parameters of lean
mass and fat mass. β-alanine supplementation appears to be safe and could be a suitable nutritional
ergogenic aid for combat athletes.
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