Evidence map›Paper›PMID 30791576›Full record

SynthesisNutrients2019

Caffeine Supplementation and Physical Performance, Muscle Damage and Perception of Fatigue in Soccer Players: A Systematic Review.

Juan Mielgo-Ayuso, Julio Calleja-Gonzalez, Juan Del Coso, Aritz Urdampilleta, Patxi León-Guereño, Diego Fernández-Lázaro

Open access · goldAbstract readSystematic Review
PubMed Full text at PMC Publisher
In one paragraph

Synthesis in Nutrients, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 8 pooled it
7.5field-weighted citation impact, top 2% 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

41 citing papers in PubMed, 8 syntheses or guidelines pooled it, 86 citations in OpenAlex.

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  9. Soccer pass performance following caffeine intake with deliberate or maintenance practice.Journal of the International Society of Sports Nutrition · 2026
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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

6 authors at 4 institutions in 1 country.

Juan Mielgo-AyusoDepartment of Biochemistry and Physiology, School of Physical Therapy, University of Valladolid, 42004 Soria, Spain. juanfrancisco.mielgo@uva.es.ORCID 0000-0002-6554-4602
Julio Calleja-GonzalezLaboratory of Human Performance, Department of Physical Education and Sport, Faculty of Physical Activity and Sport, University of the Basque Country, 01007 Vitoria, Spain. julio.calleja.gonzalez@gmail.com.
Juan Del CosoExercise Physiology Laboratory, Camilo José Cela University, 28692 Madrid, Spain. jdelcoso@ucjc.edu.ORCID 0000-0002-5785-984X
Aritz UrdampilletaElikaesport, Nutrition, Innovation & Sport, 08290 Barcelona, Spain. a.urdampilleta@drurdampilleta.com.
Patxi León-GuereñoFaculty of Psychology and Education, University of Deusto, Campus of Donostia-San Sebastián, 20012 San Sebastián, Guipúzcoa, Spain. patxi.leon@deusto.es.
Diego Fernández-LázaroDepartment of Cellular Biology, Histology and Pharmacology. Faculty of Physical Therapy, University of Valladolid. Campus de Soria, 42004 Soria, Spain. diego.fernandez.lazaro@uva.es.
Universidad de Valladolid · ESCamilo José Cela University · ESUniversidad de Deusto · ESUniversity of the Basque Country · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Soccer is a complex team sport and success in this discipline depends on different factors such as physical fitness, player technique and team tactics, among others. In the last few years, several studies have described the impact of caffeine intake on soccer physical performance, but the results of these investigations have not been properly reviewed and summarized. The main objective of this review was to evaluate critically the effectiveness of a moderate dose of caffeine on soccer physical performance. A structured search was carried out following the Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) guidelines in the Medline/PubMed and Web of Science databases from January 2007 to November 2018. The search included studies with a cross-over and randomized experimental design in which the intake of caffeine (either from caffeinated drinks or pills) was compared to an identical placebo situation. There were no filters applied to the soccer players' level, gender or age. This review included 17 articles that investigated the effects of caffeine on soccer-specific abilities (

Indexed as

Dietary SupplementsAdolescentAdultAthletic PerformanceCaffeineCross-Over StudiesFatigueFemaleHumansMaleMuscle, SkeletalPerceptionPerformance-Enhancing SubstancesPhysical Functional PerformanceRandomized Controlled Trials as TopicRunningCaffeinePerformance-Enhancing SubstancesDOMSergogenic aidsfootballRPEsport performancesupplementation

Identifiers

PMID30791576
PMCPMC6412526
OpenAlexW2917358392

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.