Cited by 120Sports Performance and TrainingMuscle metabolism and nutritionCardiovascular and exercise physiology

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Bicarbonate ingestion: Effects of dosage on 60 s cycle ergometry

McNaughton, Lars R.·1992·Journal of Sports Sciences

DOI 10.1080/02640419208729940

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Abstract

Nine healthy male subjects who were all participating in athletic events volunteered to take part in this study, the aim of which was to determine whether there are specific dosages of sodium bicarbonate (HCO3-) that are useful as an ergogenic aid as far as anaerobic performance times are concerned. A control, placebo (CaCO3 500 mg kg-1) and five dosages of bicarbonate (100, 200, 300, 400 and 500 mg kg-1) were used. The anaerobic test consisted of pedalling a Repco Exertech cycle ergometer for 1 min during which total work (kJ) and peak power (W) were measured. The subjects completed more work in the 200 (P < 0.05), 300, 400 and 500 mg kg-1 (P < 0.005) trials with most work being undertaken in the 300 mg kg-1 trial (41.9 kJ min-1). Peak power was not significantly different from the control until the 300 mg kg-1 dose, and there were no further changes from this with increasing doses of HCO3-. The highest level of peak power achieved was 1295 +/- 72.8 W at the 300 mg kg-1 dosage. Blood pH indicated that after ingestion of all but the 100 mg kg-1 dose, a state of alkalosis was achieved (P < 0.005), and this was also indicated by changes in base excess. Bicarbonate levels increased post-ingestion in all but the 100 mg kg-1 dose, with these changes reflecting the changes that occurred in the work output. Blood lactate (BLa) levels increased post-exercise (P < 0.0001).(ABSTRACT TRUNCATED AT 250 WORDS)

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EFEITO DA INGESTÃO DE BICARBONATO DE SÓDIO NO DESEMPENHO EM EXERCÍCIOS INTERMITENTES DE ALTA INTENSIDADE: UMA REVISÃO SISTEMÁTICA
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Authors: McNaughton, L. R.
Affiliations: University of Tasmania (AU)
Corresponding author: McNaughton, Lars R.
ORCID: McNaughton, Lars R.
Venue: Journal of Sports Sciences
Publisher: Informa UK Limited
Published: 1992-10
Volume: 10
Issue: 5
Pages: 415-423
ISSN: 0264-0414 (ISSN-L)
1466-447X
DOI: 10.1080/02640419208729940
OpenAlex: W2049803974
Cited by: 120
References: 45
Citations by year: 2026: 2 · 2025: 1 · 2024: 4 · 2023: 6 · 2022: 3 · 2021: 11 · 2020: 9 · 2019: 5 · 2018: 6 · 2017: 7 · 2016: 9 · 2015: 3 · 2014: 2 · 2013: 7 · 2012: 5
FWCI: 0.94
Type: journal article
Language: en
Open access: closed
Locations: Journal of Sports Sciences (publishedVersion)
PubMed (publishedVersion)
Edge Hill University Research Information Repository (Edge Hill University) (submittedVersion)
Topics: Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
Health Sciences › Nursing › Nutrition and Dietetics › Muscle metabolism and nutrition
Health Sciences › Medicine › Physiology (medical) › Cardiovascular and exercise physiology
Keywords: sodium bicarbonate, ergogenic aids, dosage, anaerobic performance, cycle ergometry, peak power, blood pH, alkalosis, blood lactate, base excess, gastrointestinal diseases
MeSH terms: Acid-Base Equilibrium, Adult, Bicarbonates, Exercise Test, Humans, Hydrogen-Ion Concentration, Lactates, Male, Physical Endurance, Sodium, Anaerobic Threshold, Sodium Bicarbonate

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Bicarbonate ingestion: Effects of dosage on 60 s cycle ergometry

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