Evidence map›Paper›PMID 25355191›Full record

ReviewSports medicine (Auckland, N.Z.)2014

Exercise and sport performance with low doses of caffeine.

Lawrence L Spriet

Registry-linked trialAbstract readReview
PubMed Full text at PMC Publisher
In one paragraph

Review in Sports medicine (Auckland, N.Z.), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05916352 (The Effect of Caffeine Supplementation on Blood Lactate Level, Performance and Post-Training Fatigue in Elite Basketball Players), which is not on this map. Cited by 140 papers, 24 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
140citing papers in PubMed, 24 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.

NCT05916352 nacompletednot on this mapstarted 2022, after this paper: background citation

The Effect of Caffeine Supplementation on Blood Lactate Level, Performance and Post-Training Fatigue in Elite Basketball Players

TypeinterventionalSponsorCyprus International UniversityRan2022 to 2023Enrolled50ConditionsSportive Performance, CaffeineArmsCaffeine Supplement
3 · Its place in the literature

Who cites it

140 citing papers in PubMed, 24 syntheses or guidelines pooled it.

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  4. Placebo effects of caffeine on sport performance: a systematic review and meta-analysis.Journal of the International Society of Sports Nutrition · 2026
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80 more citing papers are in PubMed but not listed here.

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

1 author.

Lawrence L SprietDepartment of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON, N1G 2W1, Canada, lspriet@uoguelph.ca.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Caffeine is a popular work-enhancing supplement that has been actively researched since the 1970s. The majority of research has examined the effects of moderate to high caffeine doses (5-13 mg/kg body mass) on exercise and sport. These caffeine doses have profound effects on the responses to exercise at the whole-body level and are associated with variable results and some undesirable side effects. Low doses of caffeine (<3 mg/kg body mass, ~200 mg) are also ergogenic in some exercise and sport situations, although this has been less well studied. Lower caffeine doses (1) do not alter the peripheral whole-body responses to exercise; (2) improve vigilance, alertness, and mood and cognitive processes during and after exercise; and (3) are associated with few, if any, side effects. Therefore, the ergogenic effect of low caffeine doses appears to result from alterations in the central nervous system. However, several aspects of consuming low doses of caffeine remain unresolved and suffer from a paucity of research, including the potential effects on high-intensity sprint and burst activities. The responses to low doses of caffeine are also variable and athletes need to determine whether the ingestion of ~200 mg of caffeine before and/or during training and competitions is ergogenic on an individual basis.

Indexed as

AffectAthletic PerformanceCaffeineCognitionDietary SupplementsExerciseHumansPhysical EnduranceCaffeine

Identifiers

PMID25355191
PMCPMC4213371

What OpenQuestion holds

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Registered trials

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.