Evidence map›Paper›PMID 33321978›Full record

ArticleLife (Basel, Switzerland)2020

Time Course and Magnitude of Tolerance to the Ergogenic Effect of Caffeine on the Second Ventilatory Threshold.

Carlos Ruiz-Moreno, Beatriz Lara, Jorge Gutiérrez-Hellín, Jaime González-García, Juan Del Coso

Open access · goldAbstract read
In one paragraph

Article in Life (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 3 pooled it
1.1field-weighted citation impact, top 22% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 3 syntheses or guidelines pooled it, 14 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Trial
  6. Review
  7. Article
  8. Article
  9. Exercise Biomechanics and Physiology.Life (Basel, Switzerland) · 2021
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 1 country.

Carlos Ruiz-MorenoExercise Physiology Laboratory, Camilo José Cela University, 28692 Villanueva de la Cañada, Spain.ORCID 0000-0003-0644-8132
Beatriz LaraExercise Physiology Laboratory, Camilo José Cela University, 28692 Villanueva de la Cañada, Spain.
Jorge Gutiérrez-HellínFaculty of Health Sciences, Francisco de Vitoria University, 28223 Pozuelo de Alarcón, Spain.ORCID 0000-0001-9721-2269
Jaime González-GarcíaExercise Physiology Laboratory, Camilo José Cela University, 28692 Villanueva de la Cañada, Spain.ORCID 0000-0003-1515-9711
Juan Del CosoCentre for Sport Studies, Rey Juan Carlos University, 28943 Fuenlabrada, Spain.ORCID 0000-0002-5785-984X
Camilo José Cela University · ESUniversidad Francisco de Vitoria · ESUniversidad Rey Juan Carlos · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pre-exercise caffeine ingestion has been shown to increase the workload at ventilatory threshold, suggesting an ergogenic effect of this stimulant on submaximal aerobic exercise. However, the time course of tolerance to the effect of caffeine on ventilatory threshold is unknown. This study aimed to determine the evolution of tolerance to the ergogenic effect of caffeine on the ventilatory threshold.

methodsEleven participants (age 32.3 ± 4.9 yrs, height 171 ± 8 cm, body mass 66.6 ± 13.6 kg, VO

resultsA two-way ANOVA with repeated measures (substance × time) revealed statistically significant main effects of caffeine (

conclusionPre-exercise intake of 3 mg/kg/day of caffeine for twenty days enhanced the wattage obtained at VT

Indexed as

endurance athleteendurance performanceexercise performancenutritionsport performance

Identifiers

PMID33321978
PMCPMC7764462
OpenAlexW3111173525

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.