Effect of sodium bicarbonate and beta-alanine supplementation on maximal sprint swimming
Lataukset:
Mero, A., Hirvonen, P., Saarela, J., Hulmi, J., Hoffman, J. R., & Stout, J. R. (2013). Effect of sodium bicarbonate and beta-alanine supplementation on maximal sprint swimming. Journal of the International Society of Sports Nutrition, 10(1), 52. https://doi.org/10.1186/1550-2783-10-52
Julkaistu sarjassa
Journal of the International Society of Sports NutritionTekijät
Päivämäärä
2013Tekijänoikeudet
© 2013 Mero et al.; licensee BioMed Central Ltd.
This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Background.
This study examined the effect of simultaneous supplementation of extracellular buffer sodium bicarbonate (SB) and intracellular buffer beta-alanine (BA) on maximal sprint swimming.
Methods.
Thirteen competitive male swimmers completed 4 different treatments (placebo [PL], SB, BA + PL, and BA + SB) in a crossover procedure. PL or SB supplementation (0.3 g/kg body weight) was ingested 60 min before two maximal 100-m freestyle swims that were performed with a passive recovery of 12-min between each swim. Because of the known long washout period for carnosine, four weeks of BA supplementation (4.8 g per day) was started after the first week of PL or SB supplementation and performance testing.
Results.
The first maximal swims were similar, but the increase in time of the second versus the first 100-m swimming time was 1.5 s more (p < 0.05) in PL than in SB. Blood pH values were significantly (p < 0.05) greater in the SB and in the BA + SB groups compared to the PL and BA + PL values. There were no differences in peak blood lactate between the treatments.
Conclusion.
Supplementing with SB prior to performing maximal sprint swimming with repetitions under 60 s improves performance. However, co-supplementation with SB and BA did not confer any added benefit on maximal swim performance.
...
Julkaisija
BioMed CentralISSN Hae Julkaisufoorumista
1550-2783Asiasanat
Alkuperäislähde
http://www.jissn.com/Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/22935507
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Ellei muuten mainita, aineiston lisenssi on © 2013 Mero et al.; licensee BioMed Central Ltd.
This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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