Author Identifier (ORCID)
Erfan Berjisian: https://orcid.org/0009-0001-4886-7063
Abstract
Background: This study aimed to investigate the effects of a high-dose beta-alanine (BA) supplementation on physical performance, blood lactate concentration, and ratings of perceived exertion (RPE) in trained futsal players. Methods: Sixteen trained futsal players participated in a randomized, parallel, double-blind experiment, completing a two-week supplementation period with either 12 g/day of BA (n = 8; age: 19 ± 2 years; height: 1.78 ± 0.03 m; body mass: 68.5 ± 5.4 kg) or a placebo (PLA) (n = 8; age: 18 ± 1 years; height: 1.74 ± 0.08 m; body mass: 65.6 ± 6.4 kg). Athletes completed the futsal intermittent endurance test (FIET) and a 30-m speed test before and after supplementation. Plasma lactate levels were measured before, immediately after, and three minutes post-FIET, while RPE was assessed during each FIET stage. Results: There was a significant main effect of time for distance covered in the FIET (Pre-BA: 1618.13 ± 268.14 m; Post-BA: 1857.50 ± 277.81 m; Pre-PLA: 1519.13 ± 243.19 m; Post-PLA: 1621.88 ± 323.65 m; p = 0.003; ηp2 = 0.73), while no significant interaction effect was revealed for FIET (p = 0.147; ηp2 = 0.27). Furthermore, no significant interaction effects were found in the 30-m sprint test (p = 0.149; ηp2 = 0.27, Pre-BA: 4.33 ± 0.25 s; Post-BA: 4.22 ± 0.124 s; Pre-PLA: 4.33 ± 0.26 s; Post-PLA: 4.37 ± 0.22 s). Neither plasma lactate levels nor RPE showed significant main effects of treatment or timepoint (all p > 0.5). Conclusion: Two weeks of high-dose BA supplementation did not have an ergogenic impact on the distance covered during the intermittent endurance test, sprint performance, blood lactate, or RPE in trained futsal players.
Document Type
Journal Article
Date of Publication
12-1-2025
Volume
22
Issue
1
PubMed ID
40981477
Publication Title
Journal of the International Society of Sports Nutrition
Publisher
Taylor & Francis
School
School of Medical and Health Sciences
Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial 4.0 License
First Page
2564245
Comments
Miraftabi, H., Berjisian, E., Dizicheh, M. N., Naderi, A., Bodaghi, M., Koozehchian, M. S., Shabkhiz, F., & Lopez-Samanes, A. (2025). High-dose beta-alanine supplementation for two weeks did not enhance intermittent endurance or sprint performance in trained futsal players. Journal of the International Society of Sports Nutrition, 22(1). https://doi.org/10.1080/15502783.2025.2564245