ArticleJournal of the International Society of Sports Nutrition2020
Caffeine supplementation is ergogenic in soccer players independent of cardiorespiratory or neuromuscular fitness levels.
Article in Journal of the International Society of Sports Nutrition, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 3 of them syntheses that pooled it.
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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.
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.
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Who cites it
10 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- Effects of different dietary supplements on athletic performance in soccer players: a systematic review and network meta-analysis.Journal of the International Society of Sports Nutrition · 2025Pooled it
- Effects of caffeine ingestion on physiological indexes of human neuromuscular fatigue: A systematic review and meta-analysis.Brain and behavior · 2022Pooled it
- Effects of Caffeine Supplementation on Physical Performance of Soccer Players: Systematic Review and Meta-Analysis.Sports healthPooled it
- Caffeine Improves Sprint Time in Simulated Freestyle Swimming Competition but Not the Vertical Jump in Female Swimmers.Nutrients · 2024Trial
- Are Caffeine's Effects on Resistance Exercise and Jumping Performance Moderated by Training Status?Nutrients · 2022Trial
- Acute Effects of a Low Dose of Caffeine on Physiological and Performance Factors in Young Male Soccer Players: A Randomized Crossover Study.Current developments in nutrition · 2026Article
- Dose-Dependent Effects of Acute Caffeine Ingestion on Physical and Cognitive Performance in Trained Female Handball Players: A Randomized Crossover Study.Life (Basel, Switzerland) · 2026Article
- The Influence of Body Fat Percentage on Physiological Responses and Performance in Professional Soccer Players During a Soccer Game Simulation Protocol on a Treadmill.Sports (Basel, Switzerland) · 2026Article
- Higher and lower caffeine consumers: exercise performance and biological responses during a simulated soccer-game protocol following caffeine ingestion.European journal of nutrition · 2022Article
- Novel insights on caffeine supplementation, CYP1A2 genotype, physiological responses and exercise performance.European journal of applied physiology · 2021Review
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundEquivocal findings examining the influence of caffeine on performance and biological responses to exercise may be due to inter-individual variability in cardiorespiratory or neuromuscular fitness. This study examined whether the effects of caffeine ingestion on exercise performance and biological responses to prolonged intermittent exercise to exhaustion depend on cardiorespiratory or neuromuscular fitness.
methodsTwenty male soccer players, separated according to either cardiorespiratory fitness (high vs medium) or neuromuscular fitness (high vs medium) underwent two trials simulating the cardiovascular demands of a soccer game to exhaustion on treadmill after ingesting either caffeine (6 mg∙kg
resultsTime to exhaustion (719 ± 288 vs 469 ± 228 s), jump height (42.7 ± 4.2 vs 38.6 ± 4.4 cm), heart rate (163 ± 12 vs 157 ± 13 b∙min
conclusionsCaffeine was effective in improving endurance and neuromuscular performance in athletes with either high or medium cardiorespiratory and neuromuscular fitness. Cardiorespiratory and neuromuscular fitness do not appear to modulate the ergogenic effects of caffeine supplementation in well-trained athletes.
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