ArticleNutrients2024
Dynamics of Gut Microbiota and Short-Chain Fatty Acids during a Cycling Grand Tour Are Related to Exercise Performance and Modulated by Dietary Intake.
Article in Nutrients, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis 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.
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Who cites it
8 citing papers in PubMed, 1 synthesis or guideline pooled it.
- The performance gut: a key to optimizing performance in high-level athletes: a systematic scoping review.Frontiers in sports and active living · 2025Pooled it
- Gut Microbiota Profile and the Impact of Probiotic Supplementation in Competitive Cyclists: A Scoping Review.Nutrients · 2026Article
- Nutritional and Physiological Demands Shape the Gut Microbiome of Female World Tour Cyclists.Microorganisms · 2025Article
- Gut microbiota regulates exercise-induced hormetic modulation of cognitive function.EBioMedicine · 2025Article
- The Gut Microbiota Characterization of a World-Class Mountain Trail Runner During a Complete Competition Season: A Case Report.Journal of athletic training · 2025Article
- Mechanisms underlying alterations of the gut microbiota by exercise and their role in shaping ecological resilience.FEMS microbiology reviews · 2025Review
- Healthy human gut microbiome: Towards standardized research.AIMS microbiology · 2025Review
- Gut-muscle axis mechanism of exercise prevention of sarcopenia.Frontiers in nutrition · 2024Review
Corrections and comments
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Authors and funding
15 authors.
Funding
Abstract
backgroundRegular exercise has been described to modify both the diversity and the relative abundance of certain bacterial taxa. To our knowledge, the effect of a cycling stage race, which entails extreme physiological and metabolic demands, on the gut microbiota composition and its metabolic activity has not been analysed.
objectiveThe aim of this cohort study was to analyse the dynamics of faecal microbiota composition and short-chain fatty acids (SCFAs) content of professional cyclists over a Grand Tour and their relationship with performance and dietary intake.
methods16 professional cyclists competing in La Vuelta 2019 were recruited. Faecal samples were collected at four time points: the day before the first stage (A); after 9 stages (B); after 15 stages (C); and on the last stage (D). Faecal microbiota populations and SCFA content were analysed using 16S rRNA sequencing and gas chromatography, respectively. A principal component analysis (PCA) followed by Generalised Estimating Equation (GEE) models were carried out to explore the dynamics of microbiota and SCFAs and their relationship with performance.
results
conclusionsAn ecological perspective represents more realistically the relationship between gut microbiota composition and performance compared to single-taxon approaches. The composition and periodisation of diet and supplementation during a Grand Tour, particularly carbohydrates, could be designed to modulate gut microbiota composition to allow better performance.
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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.