Evidence map›Paper›PMID 31531131›Full record

ArticleJournal of human kinetics2019

Caffeine Supplementation for Powerlifting Competitions: An Evidence-Based Approach.

Jozo Grgic, Filip Sabol, Sandro Venier, Jason Tallis, Brad J Schoenfeld, Juan Del Coso, Pavle Mikulic

Open access · diamondAbstract read
In one paragraph

Article in Journal of human kinetics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 pooled it
2.7field-weighted citation impact, top 10% 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

16 citing papers in PubMed, 2 syntheses or guidelines pooled it, 21 citations in OpenAlex.

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  4. Effects of acute ingestion of caffeinated chewing gum on performance in elite judo athletes.Journal of the International Society of Sports Nutrition · 2021
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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

7 authors at 6 institutions in 5 countries.

Jozo GrgicInstitute for Health and Sport (IHES), Victoria University, Melbourne, Australia.
Filip SabolFitness Academy, Zagreb, Croatia.
Sandro VenierFaculty of Kinesiology, University of Zagreb, Zagreb, Croatia.
Jason TallisCentre for Sport, Exercise and Life Sciences, Coventry University, Coventry, UK.
Brad J SchoenfeldHealth Sciences Department, CUNY Lehman College, Bronx, USA.
Juan Del CosoExercise Physiology Laboratory, Universidad Camilo Jose Cela, Villanueva de la Cañada, Spain.
Pavle MikulicFaculty of Kinesiology, University of Zagreb, Zagreb, Croatia.
University of Zagreb · HRCamilo José Cela University · ESCoventry University · GBCroatian Academy of Sciences and Arts · HRLehman College · USVictoria University · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In this paper, we review the effects of caffeine on muscle strength and provide suggestions for caffeine supplementation in powerlifting competitions. The currently available studies indicate that caffeine ingestion may enhance strength in two powerlifting competition events, the squat and the bench press. For the deadlift, the same might be expected even though studies directly using this event are lacking. Optimal doses of caffeine are likely in the range from 2 to 6 mg·kg

Indexed as

1RMergogenicperformance-enhancingstrength sportssupplements

Identifiers

PMID31531131
PMCPMC6724591
OpenAlexW2971421668

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.