Evidence map›Paper›PMID 37398977›Full record

ArticleBiology of sport2023

Effect of 3 and 6 mg/kg of caffeine on fat oxidation during exercise in healthy active females.

David Varillas-Delgado, Millán Aguilar-Navarro, Alejandro Muñoz, Álvaro López-Samanés, Carlos Ruiz-Moreno, María Posada-Ayala, Francisco J Amaro-Gahete, Juan Del Coso, Jorge Gutiérrez-Hellín

Abstract read
In one paragraph

Article in Biology of sport, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

10 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Caffeine's influence on vertical jump height: a real-life collegiate student-athlete approach.Journal of the International Society of Sports Nutrition · 2025
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  6. Review
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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

9 authors.

David Varillas-DelgadoUniversidad Francisco de Vitoria, Faculty of Health Sciences, Madrid, Spain.
Millán Aguilar-NavarroUniversidad Francisco de Vitoria, Faculty of Health Sciences, Madrid, Spain.
Alejandro MuñozUniversidad Francisco de Vitoria, Faculty of Health Sciences, Madrid, Spain.
Álvaro López-SamanésUniversidad Francisco de Vitoria, Faculty of Health Sciences, Madrid, Spain.
Carlos Ruiz-MorenoCamilo José Cela University, Exercise Physiology Laboratory, Madrid, Spain.
María Posada-AyalaUniversidad Francisco de Vitoria, Faculty of Experimental Sciences, Madrid, Spain.
Francisco J Amaro-GaheteDepartment of Medical Physiology, Faculty of Medicine, University of Granada, Granada, Spain.
Juan Del CosoCentre for Sport Studies, Rey Juan Carlos University, Madrid, Spain.
Jorge Gutiérrez-HellínUniversidad Francisco de Vitoria, Faculty of Health Sciences, Madrid, Spain.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of this study was to investigate the effect of 3 and 6 mg of caffeine per kg of body mass (mg/kg) on whole-body substrate oxidation during an incremental cycling exercise test in healthy active women. Using a double-blind placebo-controlled counterbalanced experimental design, 14 subjects performed three identical exercise trials after the ingestion of 3 or 6 mg/kg of caffeine or placebo. The exercise trials consisted of an incremental test on a cycle ergometer with 3-min stages at workloads from 30 to 70% of maximal oxygen uptake (VO

Indexed as

Endurance exerciseFemale athletesPhytochemicalStimulantSubstrate oxidation

Identifiers

PMID37398977
PMCPMC10286602

What OpenQuestion holds

Textmetadata
LicenceCC BY-SA
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.