Acute Effects of Guarana (

Safwen Rekik, Mohamed Saifedine Fessi, Sami Hidouri, John Elvis Hagan Jnr, Viorel Petru Ardelean, Vlad Adrian Geantă, Khaled Trabelsi, Wassim Moalla

Abstract read

PubMed Full text at PMC Publisher

In one paragraph

Article in Sports (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it

0cells of the map it votes in

0citing papers in PubMed

–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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

8 authors.

Safwen RekikResearch Laboratory Education, Motricité, Sport et Santé, EM2S, LR19JS01, High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax 3000, Tunisia.

Mohamed Saifedine FessiResearch Laboratory Education, Motricité, Sport et Santé, EM2S, LR19JS01, High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax 3000, Tunisia.ORCID 0000-0001-6785-9475

Sami HidouriResearch Laboratory Education, Motricité, Sport et Santé, EM2S, LR19JS01, High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax 3000, Tunisia.

John Elvis Hagan JnrDepartment of Health, Physical Education and Recreation, University of Cape Coast, Cape Coast F0494, Ghana.ORCID 0000-0003-3530-6133

Viorel Petru ArdeleanDepartment of Physical Education and Sport, Faculty of Physical Education and Sport, Aurel Vlaicu University of Arad, 310130 Arad, Romania.ORCID 0000-0003-4110-2751

Vlad Adrian GeantăDepartment of Physical Education and Sport, Faculty of Physical Education and Sport, Aurel Vlaicu University of Arad, 310130 Arad, Romania.ORCID 0000-0002-8488-1698

Khaled TrabelsiResearch Laboratory Education, Motricité, Sport et Santé, EM2S, LR19JS01, High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax 3000, Tunisia.ORCID 0000-0003-2623-9557

Wassim MoallaResearch Laboratory Education, Motricité, Sport et Santé, EM2S, LR19JS01, High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax 3000, Tunisia.ORCID 0000-0001-6358-2544

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study investigated the acute effects of guarana supplementation on cognitive, technical, physiological, and psychological responses in soccer players prior to, during, and following high-intensity 4 vs. 4 small-sided games (SSGs). Thirty-two male amateur soccer players (20.1 ± 2.9 years) completed a randomized, double-blind, placebo-controlled crossover trial involving guarana (300 mg) and placebo, separated by a 7-day washout. After a 70 min absorption period, participants performed the Trail Making Test (TMT-A/B) and Loughborough Soccer Passing Test (LSPT) before and after a 20 min SSG protocol. Heart rate (HR), HR recovery, perceived physical exertion, perceived mental exertion, mood state, and 24 h wellness were assessed. Guarana significantly improved TMT-A performance compared with placebo (

Indexed as

caffeinated substancescognitive functionfootballmood stateperceived exertionsmall-sided games

Identifiers

PMID42646867

DOI10.3390/sports14080329

PMCPMC13517124

What Socratic holds

Textmetadata

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 Socratic graph.