Evidence map›Paper›PMID 39339752›Full record

Trial reportNutrients2024

Effects of Caffeinated Chewing Gum on Ice Hockey Performance after Jet Lag Intervention: Double-Blind Crossover Trial.

Ming-Tsang Tsai, Yi-Jie Shiu, Chien-Chang Ho, Che-Hsiu Chen, Chih-Hui Chiu

Abstract readRandomized Controlled Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in Nutrients, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 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

2 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. 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

5 authors.

Ming-Tsang TsaiDepartment of Recreational Sport, National Taiwan University of Sport, Taichung 404, Taiwan.
Yi-Jie ShiuDepartment of Physical Education and Sport Sciences, National Taiwan Normal University, Taipei 106, Taiwan.
Chien-Chang HoDepartment of Physical Education, Fu Jen Catholic University, New Taipei City 242, Taiwan.ORCID 0000-0002-1283-5203
Che-Hsiu ChenDepartment of Sport Performance, National Taiwan University of Sport, Taichung 404, Taiwan.
Chih-Hui ChiuGraduate Program in Department of Exercise Health Science, National Taiwan University of Sport, Taichung 404, Taiwan.ORCID 0000-0002-0739-874X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The purpose of this study was to examine the impact of caffeinated chewing gum on the physical performance of elite ice hockey players after a jet lag intervention. Fourteen national-level (age: 25.2 ± 5.4; height: 176.5 ± 5.3; weight: 78.1 ± 13.4) ice hockey players were tested late at night after a full day awake schedule with jet lag. A randomised, double-blind experimental design was employed in which participants either chewed caffeinated gum (CAF) containing 3 mg/kg caffeine or a caffeine-free placebo gum (PLA) for 10 min prior to undertaking a series of on-ice and off-ice tests. The off-ice tests included grip force, the counter-movement jump (CMJ), and the squat jump (SJ). The on-ice tests included a 35 m sprint, the S-Shape agility test, and the Yo-Yo intermittent recovery test (Yo-Yo IR1 test). The CMJ height (CAF: 47.2 ± 4.4; PL: 45.9 ± 3.5;

Indexed as

Athletic PerformanceCaffeineChewing GumCross-Over StudiesHockeyAdultAthletesDouble-Blind MethodHand StrengthHumansMaleYoung AdultCaffeineChewing Gumathletescircadian rhythmergogenic aidsnutrition

Identifiers

PMID39339752
PMCPMC11434913

What OpenQuestion holds

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LicenceCC BY
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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.