ArticleBrain sciences2020
Effects of Various Doses of Caffeine Ingestion on Intermittent Exercise Performance and Cognition.
Article in Brain sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 5 of them syntheses that pooled it.
What it found
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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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
12 citing papers in PubMed, 5 syntheses or guidelines pooled it, 25 citations in OpenAlex.
- Acute caffeine intervention and cognitive performance in populations aged 20 years and younger: a systematic review and meta-analysis.Frontiers in nutrition · 2026Pooled it
- A systematic review and meta-analysis of the evidence on the acute effects of caffeine on sport-specific skills, physical performance, and physiological function in female basketball players.Frontiers in nutrition · 2026Pooled it
- Effects of Acute Caffeine Ingestion on Repeated Sprint Ability: A Systematic Review and Meta-Analysis.Nutrients · 2025Pooled it
- Effect of caffeine ingestion on cycling performance: a systematic review and meta-analysis.Frontiers in nutrition · 2025Pooled it
- Pooled it
- Transcranial direct current stimulation combined with caffeine promotes executive function in healthy females.Journal of the International Society of Sports Nutrition · 2025Trial
- Effects of taurine combined with caffeine on repetitive sprint exercise performance and cognition in a hypoxic environment.Scientific reports · 2025Trial
- Methylliberine Ingestion Improves Various Indices of Affect but Not Cognitive Function in Healthy Men and Women.Nutrients · 2023Trial
- Effect of caffeine on attack decision-making in trained beach volleyball players following prolonged cognitive effort induced by social media use: a randomized, single-blind, crossover pilot study.BMC sports science, medicine & rehabilitation · 2025Article
- Low and Moderate Doses of Caffeinated Coffee Improve Repeated Sprint Performance in Female Team Sport Athletes.Biology · 2022Article
- The therapeutic potential of exercise and caffeine on attention-deficit/hyperactivity disorder in athletes.Frontiers in neuroscience · 2022Review
- Exercise: A Gate That Primes the Brain to Perform.Brain sciences · 2020Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
To date, no study has examined the effects of caffeine on prolonged intermittent exercise performance that imitates certain team-sports, and the suitable concentration of caffeine for improved intermittent exercise performance remains elusive. The purpose of the present cross-over, double-blind preliminary study was to investigate effects of low, moderate, and high doses of caffeine ingestion on intermittent exercise performance and cognition. Ten males performed a familiarization session and four experimental trials. Participants ingested capsules of placebo or caffeine (3, 6, or 9 mg/kg) at 1 h before exercise, rested quietly, and then performed cycling for 2 × 30 min. The cycling protocol consisted of maximal power pedaling for 5 s (mass × 0.075 kp) every minute, separated by unloaded pedaling for 25 s and rest for 30 s. At pre-ingestion of capsules, 1 h post-ingestion, and post-exercise, participants completed the Stroop task. The mean power-output (MPO), peak power-output (PPO), and response time (RT) in the Stroop task were measured. Only 3 mg/kg of caffeine had positive effects on the mean PPO and MPO; 3 mg/kg caffeine decreased RTs significantly in the incongruent and congruent conditions. These results indicate that the ingestion of low-dose caffeine had greater positive effects on the participants' physical strength during prolonged intermittent exercise and cognition than moderate- or high-dose caffeine.
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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.