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Enteric-coated Sodium Bicarbonate Supplementation Improves High-intensity Cycling Performance in Trained Cyclists by Hilton, Nathan Philip; Leach, Nicholas Keith; Hilton, Melissa May; Sparks, S. Andy; McNaughton, Lars Robert is a Medicine article available to read on EtoBox.

What is Enteric-coated Sodium Bicarbonate Supplementation Improves High-intensity Cycling Performance in Trained Cyclists about?

## Abstract ## Purpose Enteric-coated sodium bicarbonate (NaHCO~3~) can attenuate gastrointestinal (GI) symptoms following acute bicarbonate loading, although the subsequent effects on exercise performance have not been investigated. The purpose of this study was to examine the effects of enteric-coated NaHCO~3~ supplementation on high-intensity exercise performance and GI symptoms. ## Methods Eleven trained male cyclists completed three 4 km time trials after consuming; a placebo or 0.3 g∙kg^–1^ body mass NaHCO~3~ in enteric-coated or gelatin capsules. Exercise trials were timed with individual peak blood bicarbonate ion concentration ([HCO~3~^–^]). Blood acid–base balance was measured pre-ingestion, pre-exercise, and post-exercise, whereas GI symptoms were recorded pre-ingestion and immediately pre-exercise. ## Results Pre-exercise blood [HCO3^−^] and potential hydrogen (pH) were greater for both NaHCO~3~ conditions (P < 0.0005) when compared to placebo. Performance time was faster with enteric-coated (− 8.5 ± 9.6 s, P = 0.044) and gelatin (− 9.6 ± 7.2 s, P = 0.004) NaHCO~3~ compared to placebo, with no significant difference between conditions (mean difference = 1.1 ± 5.3 s, P =

Who reads Enteric-coated Sodium Bicarbonate Supplementation Improves High-intensity Cycling Performance in Trained Cyclists?

Author

Hilton, Nathan Philip; Leach, Nicholas Keith; Hilton, Melissa May; Sparks, S. Andy; McNaughton, Lars Robert

Publisher

Springer; Springer-Verlag; Springer Verlag; Springer Science and Business Media LLC; Society for Mining, Metallurgy and Exploration Inc. (ISSN 1439-6319)

Published

2020

Language

EN

Field

Medicine (Health Sciences)