Evidence map›Paper›PMID 38892701›Full record

SynthesisNutrients2024

Nutritional Ergogenic Aids in Cycling: A Systematic Review.

Alberto Valiño-Marques, Alexandre Lamas, José M Miranda, Alberto Cepeda, Patricia Regal

Abstract readSystematic Review
In one paragraph

Synthesis in Nutrients, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed.

  1. Review
  2. Review
  3. Review
  4. Review
  5. Goals in Nutrition Science 2025-2030.Frontiers in nutrition · 2026
    Review
  6. From Science to Dressing Room: Dietary Supplements for Elite Soccer Performance.Journal of functional morphology and kinesiology · 2025
    Review
  7. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Alberto Valiño-MarquesFaculty of Sport Sciences, European University of Madrid, 28670 Madrid, Spain.ORCID 0009-0001-3088-2521
Alexandre LamasDepartment of Analytical Chemistry, Nutrition and Bromatology, University of Santiago de Compostela, 27002 Lugo, Spain.ORCID 0000-0001-7283-9372
José M MirandaDepartment of Analytical Chemistry, Nutrition and Bromatology, University of Santiago de Compostela, 27002 Lugo, Spain.ORCID 0000-0001-7992-1491
Alberto CepedaDepartment of Analytical Chemistry, Nutrition and Bromatology, University of Santiago de Compostela, 27002 Lugo, Spain.ORCID 0000-0002-9324-1342
Patricia RegalDepartment of Analytical Chemistry, Nutrition and Bromatology, University of Santiago de Compostela, 27002 Lugo, Spain.ORCID 0000-0003-1584-9931

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This systematic review aimed to evaluate the effectiveness of the independent or combined use of nutritional ergogenic aids belonging to Group A of the ABCD classification by the Australian Institute of Sport (AIS) in the context of cycling (caffeine, creatine, sodium bicarbonate, beta-alanine, nitrates, and glycerol). A comprehensive search was carried out using three databases: PubMed, Scopus, and Web of Science. All the databases were searched for Randomized Controlled Trials or crossover design studies assessing the effects of supplementation on cycling performance in comparison with placebos in healthy adults. The methodological quality of each study was evaluated using the Physiotherapy Evidence Database scale. Thirty-six articles involving 701 participants were included in this review, examining supplementation with caffeine (n = 5), creatine (n = 2), sodium bicarbonate (n = 6), beta-alanine (n = 3), and nitrates (n = 8). Additionally, supplemental combinations of caffeine and creatine (n = 3), caffeine and sodium bicarbonate (n = 3), caffeine and nitrates (n = 1), creatine and sodium bicarbonate (n = 1), and sodium bicarbonate and beta-alanine (n = 4) were analyzed. A benefit for cyclists' athletic performnce was found when consuming a caffeine supplement, and a potential positive effect was noted after the consumption of sodium bicarbonate, as well as after the combination of caffeine and creatine. However, no statistically significant effects were identified for the remaining supplements, whether administered individually or in combination.

Indexed as

Athletic PerformanceBicyclingCaffeineCreatineDietary SupplementsNitratesPerformance-Enhancing SubstancesAdultbeta-AlanineFemaleHumansMaleRandomized Controlled Trials as TopicSodium Bicarbonatebeta-AlanineCaffeineCreatineNitratesPerformance-Enhancing SubstancesSodium Bicarbonateathletic performanceAustralian Institute of Sport (AIS)cyclingdietary supplementsendurance trainingergogenic aidsynergistic effect

Identifiers

PMID38892701
PMCPMC11174392

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

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.