Evidence map›Paper›PMID 38243326›Full record

ArticleBMC sports science, medicine & rehabilitation2024

Effects of caffeine supplementation on anaerobic power and muscle activity in youth athletes.

Leila Ghazaleh, Anita Enayati, Maryam Delfan, Sobhan Bamdad, Ismail Laher, Urs Granacher, Hassane Zouhal

Open access · goldAbstract read
In one paragraph

Article in BMC sports science, medicine & rehabilitation, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 8% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 8 citations in OpenAlex.

  1. Pooled it
  2. Caffeine's influence on vertical jump height: a real-life collegiate student-athlete approach.Journal of the International Society of Sports Nutrition · 2025
    Trial
  3. Review
  4. Predictors of caffeine consumption patterns in high school athletes.Journal of the International Society of Sports Nutrition · 2025
    Article
  5. Review
  6. 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

7 authors at 5 institutions in 4 countries.

Leila Ghazaleh *Department of Exercise Physiology, Faculty of Sport Sciences, Alzahra University, Tehran, Iran. L.ghazaleh@alzahra.ac.ir.ORCID http://orcid.org/0000-0002-5228-2703
Anita EnayatiDepartment of Exercise Physiology, Faculty of Sport Sciences, Alzahra University, Tehran, Iran.ORCID http://orcid.org/0000-0002-7189-1977
Maryam DelfanDepartment of Exercise Physiology, Faculty of Sport Sciences, Alzahra University, Tehran, Iran.ORCID http://orcid.org/0000-0001-8677-2578
Sobhan BamdadDepartment of Biomedical Engineering, Faculty of Engineering, Shahed University, Tehran, Iran.ORCID http://orcid.org/0000-0001-9478-1685
Ismail LaherDepartment of Anesthesiology, Pharmacology, and Therapeutics, Faculty of Medicine, University of British Columbia, Vancouver, Canada.ORCID http://orcid.org/0000-0002-3917-4417
Urs Granacher *Department of Sport and Sport Science, Exercise and Human Movement Science, University of Freiburg, Freiburg, Germany. urs.granacher@sport.uni-freiburg.de.ORCID http://orcid.org/0000-0002-7095-813X
Hassane Zouhal *Univ Rennes, M2S (Laboratoire Mouvement), EA 1274, Sport, Rennes, Santé, F-35000, France. hassane.zouhal@univ-rennes2.fr.ORCID http://orcid.org/0000-0001-6743-6464
Alzahra University · IRShahed University · IRUniversité Rennes 2 · FRUniversity of British Columbia · CAUniversity of Freiburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study aimed to investigate the effects of caffeine ingestion on anaerobic performance and muscle activity in young athletes. In this randomized, double-blind, and placebo-controlled study, ten highly trained male post-puberal futsal players aged 15.9 ± 1.2 years conducted two laboratory sessions. Athletes performed the Wingate test 60 min after ingestion of caffeine (CAF, 6 mg/kg body mass) or placebo (PL, dextrose) (blinded administration). Peak power, mean power, and the fatigue index were assessed. During the performance of the Wingate test, electromyographic (EMG) data were recorded from selected lower limbs muscles to determine the root mean square (RMS), mean power frequency (MPF), and median power frequency (MDPF) as frequency domain parameters and wavelet (WT) as time-frequency domain parameters. Caffeine ingestion increased peak (0.80 ± 0.29 W/Kg; p = 0.01; d = 0.42) and mean power (0.39 ± 0.02 W/Kg; p = 0.01; d = 0.26) but did not significantly affect the fatigue index (52.51 ± 9.48%, PL: 49.27 ± 10.39%; p = 0.34). EMG data showed that the MPF and MDPF parameters decreased and the WT increased, but caffeine did not have a significant effect on these changes (p > 0.05). Moreover, caffeine ingestion did not significantly affect RMS changes in the selected muscles (p > 0.05). Here we showed that acute caffeine ingestion improved anaerobic performance without affecting EMG parameters in young male futsal athletes.

Indexed as

Acute effectCentral fatiguePower frequencySupplementsWavelet

Identifiers

PMID38243326
PMCPMC10799507
OpenAlexW4391023981

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.