Evidence map›Paper›PMID 40431449›Full record

SynthesisNutrients2025

Effects of Caffeine Supplementation on Exercise Performance in Volleyball Players: A Systematic Review and Meta-Analysis.

Bin Chen, Chuanmin Zhang, Zhenghong Xu, Yiqian Li, Li Guo, Yinhang Cao, Olivier Girard

Abstract readSystematic ReviewMeta-Analysis
PubMed Full text at PMC Publisher
In one paragraph

Synthesis in Nutrients, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 3 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

4 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Review
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.

Bin ChenDepartment of Public Physical Education, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
Chuanmin ZhangSchool of Physical Education, Tianjin University of Sport, Tianjin 300060, China.
Zhenghong XuDepartment of Public Physical Education, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
Yiqian LiSchool of Athletic Performance, Shanghai University of Sport, Shanghai 200438, China.
Li GuoSchool of Exercise and Health, Shanghai University of Sport, Shanghai 200438, China.ORCID 0009-0007-1206-3614
Yinhang CaoSchool of Athletic Performance, Shanghai University of Sport, Shanghai 200438, China.ORCID 0000-0003-2323-3707
Olivier GirardSchool of Human Sciences (Exercise and Sport Science), The University of Western Australia, Perth 6009, Australia.ORCID 0000-0002-4797-182X

Funding

Shanghai Key Laboratory of Human Performance at Shanghai University of Sport 11DZ2261100
6 · The paper itself

Abstract

PubMed holds no abstract for this paper.

Indexed as

Athletic PerformanceCaffeineDietary SupplementsPerformance-Enhancing SubstancesVolleyballAthletesHand StrengthHumansMaleCaffeinePerformance-Enhancing Substancesergogenic aidphysical performancesports performanceteam sports

Identifiers

PMID40431449
PMCPMC12113779

What Socratic 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 Socratic graph.