Randomized controlled trial2020

Acute caffeine intake increases performance in the 15-s Wingate test during the menstrual cycle

Lara B, Gutiérrez Hellín J, Ruíz-Moreno C, Romero-Moraleda B, Del Coso J

British journal of clinical pharmacology · 39 citations

Review labels

Funding not disclosed

Neutral facts our review recorded about how this study was done. They describe method, never whether we like the result.

How it was studied

Design
Randomized controlled trial (indexed by PubMed)
Studied in
People
Main outcome
Health markers and function

Who paid for it

Funding
Funding not disclosed

Publication

Published
2019-11-20 · Br J Clin Pharmacol · vol. 86 · issue 4 · pp. 745–752
Publisher
Wiley
Cited
53 citations · more than 88% of similar papers · 2.4× the field average
References
40 works
Access
Free to read
Research areas
Muscle metabolism and nutrition · Coffee research and impacts · Exercise and Physiological Responses
Keywords
Caffeine, Wingate test, Luteal phase, Follicular phase, Menstrual cycle, Placebo, Anaerobic exercise, Medicine, Athletes, Endocrinology, Internal medicine, Physiology, Animal science, Physical therapy, Hormone, Biology
MeSH
humans, caffeine, cross-over studies, double-blind method, menstrual cycle, female, male, performance-enhancing substances

5 authors

From ES

  • Beatriz LaraCamilo José Cela University
  • Jorge Gutiérrez‐HellínUniversidad Francisco de Vitoria; Camilo José Cela University
  • Carlos Ruíz‐MorenoCamilo José Cela University
  • Blanca Romero‐MoraledaCamilo José Cela University
  • Juan Del Coso · correspondingUniversidad Rey Juan Carlos

Abstract

Aims

In male athletes, caffeine is considered an ergogenic aid to increase anaerobic performance during the Wingate anaerobic test (WANT). However, information about the effect of caffeine on WANT performance in female athletes is contradictory. Furthermore, it is unknown whether the ergogenicity of caffeine is present during all the phases of the menstrual cycle. The aim of this study was to investigate the effects of caffeine intake on WANT performance during 3 phases of the menstrual cycle.

Methods

Thirteen well-trained eumenorrhoeic triathletes participated in a double-blind, placebo-controlled, cross-over experimental trial. On 2 different days in each phase, and in randomized order, participants ingested caffeine (3 mg kg-1 ) or a placebo (cellulose). The menstrual cycle phases were individually characterized as follows: (i) early follicular; (ii) preovulatory; and (iii) midluteal. In each trial, participants performed a 15-s adapted version of the WANT.

Results

In comparison to the placebo, caffeine increased peak power during the WANT in the early follicular (8.6 ± 0.8 vs 8.9 ± 0.9 W/kg, P = .04; effect size [d] = 0.45), preovulatory (8.6 ± 0.9 vs 8.9 ± 0.9 W/kg, P = .04; d = 0.23) and mid-luteal phases (8.6 ± 0.8 vs 8.9 ± 0.9 W/kg, P < .01; d = 0.52).

Conclusion

The ergogenic effect of caffeine on WANT peak cycling power was of a similar magnitude in the follicular, preovulatory, and mid-luteal phases. These results suggest that caffeine increases performance in the 15-s Wingate test in women athletes and it might be considered an ergogenic aid to increase anaerobic performance in eumenorrhoeic women during their menstrual cycle.

Abstract via Europe PMC. Copyright remains with the authors or publisher.

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