Ergogenic effects of caffeine and sodium bicarbonate supplementation on intermittent exercise performance preceded by intense arm cranking exercise

Matthaus Marriott, Peter Krustrup, Magni Mohr

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)
6 Downloads (Pure)

Abstract

Background

Caffeine and sodium bicarbonate ingestion have been suggested to improve high-intensity intermittent exercise, but it is unclear if these ergogenic substances affect performance under provoked metabolic acidification. To study the effects of caffeine and sodium bicarbonate on intense intermittent exercise performance and metabolic markers under exercise-induced acidification, intense arm-cranking exercise was performed prior to intense intermittent running after intake of placebo, caffeine and sodium bicarbonate.

Methods

Male team-sports athletes (n = 12) ingested sodium bicarbonate (NaHCO3; 0.4 g.kg−1 b.w.), caffeine (CAF; 6 mg.kg−1 b.w.) or placebo (PLA) on three different occasions. Thereafter, participants engaged in intense arm exercise prior to the Yo-Yo intermittent recovery test level-2 (Yo-Yo IR2). Heart rate, blood lactate and glucose as well as rating of perceived exertion (RPE) were determined during the protocol.

Results

CAF and NaHCO3 elicited a 14 and 23% improvement (P 
Conclusions

Caffeine and sodium bicarbonate administration improved Yo-Yo IR2 performance and lowered perceived exertion after intense arm cranking exercise, with greater overall effects of sodium bicarbonate intake.
Original languageEnglish
Pages (from-to)1-8
Number of pages8
JournalJournal of the International Society of Sports Nutrition
Volume12
Issue number1
DOIs
Publication statusPublished - 2015

Keywords

  • Yo-Yo IR2 test performance
  • Fatigue
  • Blood lactate
  • Rating of perceived exertion
  • Team sport athletes

Fingerprint

Dive into the research topics of 'Ergogenic effects of caffeine and sodium bicarbonate supplementation on intermittent exercise performance preceded by intense arm cranking exercise'. Together they form a unique fingerprint.

Cite this