Trial reportNutrients2016
Time of Day and Training Status Both Impact the Efficacy of Caffeine for Short Duration Cycling Performance.
Trial report in Nutrients, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 3 of them syntheses 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
23 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- Acute caffeine supplementation and cycling time-trial performance across different task durations: a systematic review and meta-analysis.Frontiers in physiology · 2026Pooled it
- Pooled it
- Systematic review of the use of "magnitude-based inference" in sports science and medicine.PloS one · 2020Pooled it
- Trial
- Are Caffeine's Effects on Resistance Exercise and Jumping Performance Moderated by Training Status?Nutrients · 2022Trial
- Effects of caffeine supplementation on physical performance and mood dimensions in elite and trained-recreational athletes.Journal of the International Society of Sports Nutrition · 2020Trial
- Acute caffeine strategies for improving performance in combat sports: a structured narrative review.Frontiers in physiology · 2026Review
- Anthocyanin-Rich Blackcurrant Supplementation as a Nutraceutical Ergogenic Aid for Exercise Performance and Recovery: A Narrative Review.Current developments in nutrition · 2025Article
- Timing Matters: Time of Day Impacts the Ergogenic Effects of Caffeine-A Narrative Review.Nutrients · 2024Review
- Moderate-dose caffeine enhances anaerobic performance without altering hydration status.Frontiers in nutrition · 2024Article
- Running-Induced Metabolic and Physiological Responses Using New Zealand Blackcurrant Extract in a Male Ultra-Endurance Runner: A Case Study.Journal of functional morphology and kinesiology · 2022Article
- Review
- Acute Ingestion of a Commercially Available Pre-workout Supplement Improves Anaerobic Power Output and Reduces Muscular Fatigue.International journal of exercise science · 2022Article
- Effects of Low Dose Caffeine on Post-Exercise Heart Rate Variability: A Double-Blind Placebo-Controlled Trial.International journal of exercise science · 2022Article
- Caffeine increases maximal fat oxidation during a graded exercise test: is there a diurnal variation?Journal of the International Society of Sports Nutrition · 2021Article
- International society of sports nutrition position stand: caffeine and exercise performance.Journal of the International Society of Sports Nutrition · 2021Review
- The Effect of Acute Caffeine Ingestion on Cognitive Dual Task Performance during Assessment of Static and Dynamic Balance in Older Adults.Nutrients · 2020Article
- Caffeine and Exercise Performance: Possible Directions for Definitive Findings.Frontiers in sports and active living · 2020Review
- Effects of Dietary Supplements on Adaptations to Endurance Training.Sports medicine (Auckland, N.Z.) · 2020Review
- Caffeine and Exercise: What Next?Sports medicine (Auckland, N.Z.) · 2019Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This project was designed to assess the effects of time of day and training status on the benefits of caffeine supplementation for cycling performance. Twenty male subjects (Age, 25 years; Peak oxygen consumption, 57 mL·kg
Indexed as
Identifiers
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.