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Article

One-Week High-Dose β-Alanine Loading Improves World Tour Cyclists’ Time-Trial Performance

1
Sports Physiology Department, Faculty of Health Sciences, UCAM Universidad Católica San Antonio de Murcia, 30107 Murcia, Spain
2
Primary Care Research Group, Biomedical Research Institute of Murcia (IMIB-Arrixaca), 30120 Murcia, Spain
*
Author to whom correspondence should be addressed.
Academic Editors: Antoni Sureda and David C. Nieman
Nutrients 2021, 13(8), 2543; https://doi.org/10.3390/nu13082543
Received: 11 June 2021 / Revised: 20 July 2021 / Accepted: 22 July 2021 / Published: 25 July 2021
Supplementation with β-alanine is becoming a common practice in high-performance athletes. The purpose of the present study was to investigate the effects of a one-week high-dose β-alanine loading phase employing a sustained-release powder on preserving the time-trial performance capacity of world tour cyclists during overreaching training. Per day, 20 g of sustained-release β-alanine was administered during one week (7 days) of intensive team training camp in a randomised balanced placebo-controlled parallel trial design, with six participants in each β-alanine (BA) or placebo (PLA) group. A 10-min time trial (10′ TT) was carried out to analyse performance and biochemical variables. Anthropometry, paresthesia, and adverse event data were also collected. Power-based relative training load was quantified. Compared to placebo, the BA improved mean power (6.21%, 37.23 W; 95% CI: 3.98–70.48 W, p = 0.046), distance travelled (2.16%, p = 0.046) and total work (4.85%, p = 0.046) without differences in cadence (p = 0.506) or RPE. Lactate (p = 0.036) and anion gap (p = 0.047) were also higher in the BA group, without differences in pH or Bicarbonate. High daily and single doses were well tolerated. One-week high-dose β-alanine loading with a sustained-release powder blend can help attenuate 10′ TT performance losses of world tour cyclists due to intensive training. View Full-Text
Keywords: β-alanine; sustained-release; time-trial; world tour cyclists; ergogenic aid β-alanine; sustained-release; time-trial; world tour cyclists; ergogenic aid
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MDPI and ACS Style

Ávila-Gandía, V.; Torregrosa-García, A.; Pérez-Piñero, S.; Ortolano, R.; Abellán-Ruiz, M.S.; López-Román, F.J. One-Week High-Dose β-Alanine Loading Improves World Tour Cyclists’ Time-Trial Performance. Nutrients 2021, 13, 2543. https://doi.org/10.3390/nu13082543

AMA Style

Ávila-Gandía V, Torregrosa-García A, Pérez-Piñero S, Ortolano R, Abellán-Ruiz MS, López-Román FJ. One-Week High-Dose β-Alanine Loading Improves World Tour Cyclists’ Time-Trial Performance. Nutrients. 2021; 13(8):2543. https://doi.org/10.3390/nu13082543

Chicago/Turabian Style

Ávila-Gandía, Vicente, Antonio Torregrosa-García, Silvia Pérez-Piñero, Raquel Ortolano, María S. Abellán-Ruiz, and F. J. López-Román. 2021. "One-Week High-Dose β-Alanine Loading Improves World Tour Cyclists’ Time-Trial Performance" Nutrients 13, no. 8: 2543. https://doi.org/10.3390/nu13082543

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