SynthesisSports medicine (Auckland, N.Z.)2020
Effects of Ramadan Fasting on Physical Performance: A Systematic Review with Meta-analysis.
Synthesis in Sports medicine (Auckland, N.Z.), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 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
45 citing papers in PubMed, 3 syntheses or guidelines pooled it, 67 citations in OpenAlex.
- Effects of Intermittent Fasting and Calorie Restriction on Exercise Performance: A Systematic Review and Meta-Analysis.Nutrients · 2025Pooled it
- Pooled it
- The impacts of Ramadan fasting for patients with non-alcoholic fatty liver disease (NAFLD): a systematic review.Frontiers in nutrition · 2023Pooled it
- Effects of Modified Ramadan Fasting on Mental Well-Being and Biomarkers in Healthy Adult Muslims - A Randomised Controlled Trial.International journal of behavioral medicine · 2025Trial
- Hypercaloric 16:8 time-restricted eating during 8 weeks of resistance exercise in well-trained men and women.Journal of the International Society of Sports Nutrition · 2025Trial
- Time-Restricted Eating Without Exercise Enhances Anaerobic Power and Reduces Body Weight: A Randomized Crossover Trial in Untrained Adults.Nutrients · 2025Trial
- Effectiveness of Early Versus Late Time-Restricted Eating Combined with Physical Activity in Overweight or Obese Women.Nutrients · 2025Trial
- Trial
- Fasting-Mimicking-Diet does not reduce skeletal muscle function in healthy young adults: a randomized control trial.European journal of applied physiology · 2022Trial
- Time-restricted eating effects on performance, immune function, and body composition in elite cyclists: a randomized controlled trial.Journal of the International Society of Sports Nutrition · 2020Trial
- Ramadan fasting influences respiratory sarcopenia and plasma markers of neuromuscular junction health in older adults.European journal of applied physiology · 2026Article
- Exercise Training in the Fasted State During the Month of Ramadan: Acutely Ergolytic but Possibly Chronically Ergogenic? A Narrative Review with Systematic Search and Methodological Quality Assessment.Sports medicine - open · 2026Review
- The role of intermittent fasting in modulating oxidative stress: a narrative review.Molecular biology reports · 2026Review
- Sex-Specific Responses to Intermittent Fasting: A Narrative Review Across Physiological, Clinical, and Psychosocial Contexts.Nutrients · 2026Review
- Effects of Ramadan fasting on physical capacity and plasma markers of neuromuscular junction degradation in older adult men.European journal of nutrition · 2026Article
- Does Ramadan fasting influence time-motion metrics and psychophysiological responses in soccer players during small-sided games performed in fed and fasted states?Biology of sport · 2026Article
- Exploratory study of reactive agility and sprint performance during Ramadan intermittent fasting in male adolescent handball players from a Tunisian club.Frontiers in physiology · 2026Article
- A Tripartite Framework of Conflict-Induced Stress, Acoustic Hypervigilance, and Ramadan Observance as Convergent Determinants of Circadian Decoherence in Athletes.Nature and science of sleep · 2026Review
- Consensus Document of the Spanish Nutrition Society (SEÑ) on Nutritional Strategies in Sports.Nutrients · 2025Review
- Review on the effects of fasting on cardiac patients.American heart journal plus : cardiology research and practice · 2025Review
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 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundIt is common that several athletes will fast while training or competing during Ramadan. There is currently no consensus on if or how this might affect physical performance.
objectiveThe aim was to conduct a systematic review combined with a meta-analysis to determine what are the effects of fasting during the month of Ramadan on physical performance.
methodsThree electronic databases were searched: PubMed, ScienceDirect, and Web of Science between from the earliest available date to May 2019. Two authors identified studies that evaluated the effects of Ramadan fasting on physical performance. Risk of bias was assessed using the Downs and Black methodological quality checklist. Pooled effects were reported as standardized mean differences (MDs) and 95% confidence intervals (CIs) using a random effects model.
resultsA total of 11 studies met the inclusion criteria. Results revealed that Ramadan fasting had a deleterious effect on mean power and peak power during a Wingate and/or a repeated sprint test. In the morning, sprint performance was negatively affected by Ramadan fasting. Aerobic performance, strength, jump height, fatigue index, and total work were not affected by the intermittent fasting during the month of Ramadan.
conclusionsThe majority of physical performance parameters were not influenced by Ramadan fasting when tested either in the morning or in the afternoon. Athletes appear able to participate in competition in a fasted state with little impact on physical performance. Sleep and nutrition opportunities should be optimized to minimize likelihood of accumulating fatigue.
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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.