Trial reportEuropean journal of applied physiology2011
Effect of caffeine ingestion after creatine supplementation on intermittent high-intensity sprint performance.
Trial report in European journal of applied physiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled 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.
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
19 citing papers in PubMed, 1 synthesis or guideline pooled it, 48 citations in OpenAlex.
- Nutritional Ergogenic Aids in Cycling: A Systematic Review.Nutrients · 2024Pooled it
- No additive effect of creatine, caffeine, and sodium bicarbonate on intense exercise performance in endurance-trained individuals.Scandinavian journal of medicine & science in sports · 2024Trial
- Trial
- Effects of Coffee and Caffeine Anhydrous Intake During Creatine Loading.Journal of strength and conditioning research · 2016Trial
- Caffeine reduces reaction time and improves performance in simulated-contest of taekwondo.Nutrients · 2014Trial
- Co-ingestion of caffeine and carbohydrate after meal does not improve performance at high-intensity intermittent sprints with short recovery times.European journal of applied physiology · 2014Trial
- Caffeine's effect on intermittent sprint cycling performance with different rest intervals.European journal of applied physiology · 2012Trial
- Part II. Common questions and misconceptions about creatine supplementation: what does the scientific evidence really show?Journal of the International Society of Sports Nutrition · 2025Review
- Review
- Review
- International society of sports nutrition position stand: caffeine and exercise performance.Journal of the International Society of Sports Nutrition · 2021Review
- Effects of Caffeine on Exercise Duration, Critical Velocity, and Ratings of Perceived Exertion During Repeated-Sprint Exercise in Physically Active Men.International journal of exercise science · 2021Article
- Beneficial Impact of Semicarbazide-Sensitive Amine Oxidase Inhibition on the Potential Cytotoxicity of Creatine Supplementation in Type 2 Diabetes Mellitus.Molecules (Basel, Switzerland) · 2020Review
- Review
- Practical Issues in Evidence-Based Use of Performance Supplements: Supplement Interactions, Repeated Use and Individual Responses.Sports medicine (Auckland, N.Z.) · 2017Review
- Repeated sprint ability is not enhanced by caffeine, arginine, and branched-chain amino acids in moderately trained soccer players.Journal of exercise rehabilitation · 2017Article
- Co-ingestion of Nutritional Ergogenic Aids and High-Intensity Exercise Performance.Sports medicine (Auckland, N.Z.) · 2016Review
- Creatine monohydrate supplementation on lower-limb muscle power in Brazilian elite soccer players.Journal of the International Society of Sports Nutrition · 2014Article
- Effects of acute caffeinated coffee consumption on energy utilization related to glucose and lipid oxidation from short submaximal treadmill exercise in sedentary men.Nutrition and metabolic insights · 2011Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The aim of this study was to investigate the effects of acute caffeine ingestion on intermittent high-intensity sprint performance after 5 days of creatine loading. After completing a control trial (no ergogenic aids, CON), twelve physically active men were administered in a double-blind, randomized crossover protocol to receive CRE + PLA (0.3 g kg(-1) day(-1) of creatine for 5 days then followed by 6 mg kg(-1) of placebo) and CRE + CAF (0.3 g kg(-1) day(-1) of creatine for 5 days and followed by 6 mg kg(-1) of caffeine), after which they performed a repeated sprint test. Each test consisted of six 10-s intermittent high-intensity sprints on a cycling ergometer, with 60-s rest intervals between sprints. Mean power, peak power, rating of perceived exertion (RPE), and heart rates were measured during the test. Blood samples for lactate, glucose, and catecholamine concentrations were drawn at specified intervals. The mean and peak power observed in the CRE + CAF were significantly higher than those found in the CON during Sprints 1 and 3; and the CRE + CAF showed significantly higher mean and peak power than that in the CRE + PLA during Sprints 1 and 2. The mean and peak power during Sprint 3 in the CRE + PLA was significantly greater than that in the CON. Heart rates, plasma lactate, and glucose increased significantly with CRE + CAF during most sprints. No significant differences were observed in the RPE among the three trials. The present study determined that caffeine ingestion after creatine supplements augmented intermittent high-intensity sprint performance.
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What OpenQuestion holds
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.