Cited by 1,439Gut microbiota and healthProbiotics and Fermented FoodsGastrointestinal motility and disorders

Exercise and associated dietary extremes impact on gut microbial diversity

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Clarke, Siobhan F, Murphy, Eileen F, O'Sullivan, Orla, Lucey, Alice J, Humphreys, Margaret, Hogan, Aileen, Hayes, Paula, O'Reilly, Maeve +10 more·2014·Gut

Abstract

Objective: The commensal microbiota, host immunity and metabolism participate in a signalling network, with diet influencing each component of this triad. In addition to diet, many elements of a modern lifestyle influence the gut microbiota but the degree to which exercise affects this population is unclear. Therefore, we explored exercise and diet for their impact on the gut microbiota. Design: Since extremes of exercise often accompany extremes of diet, we addressed the issue by studying professional athletes from an international rugby union squad. Two groups were included to control for physical size, age and gender. Compositional analysis of the microbiota was explored by 16S rRNA amplicon sequencing. Each participant completed a detailed food frequency questionnaire. Results: As expected, athletes and controls differed significantly with respect to plasma creatine kinase (a marker of extreme exercise), and inflammatory and metabolic markers. More importantly, athletes had a higher diversity of gut micro-organisms, representing 22 distinct phyla, which in turn positively correlated with protein consumption and creatine kinase. Conclusions: The results provide evidence for a beneficial impact of exercise on gut microbiota diversity but also indicate that the relationship is complex and is related to accompanying dietary extremes.

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  1. Gut microbiota on July 13, 2023 by guest. Protected by copyright. http://gut.bmj.com/ Gut: first published as 10.1136/gutjnl-2013-306541 on 9 June 2014. Downloaded from REFERENCES
  2. Clarke SF, et al. Gut 2014;63:1913-1920. doi:10.1136/gutjnl-2013-306541 1919 Gut microbiota on July 13, 2023 by guest. Protected by copyright. http://gut.bmj.com/ Gut: first published as 10.1136/gutjnl-2013-306541 on 9 June 2014. Downloaded from · DOI
  3. Clarke SF, et al. Gut 2014;63:1913-1920. doi:10.1136/gutjnl-2013-306541 Gut microbiota on July 13, 2023 by guest. Protected by copyright. http://gut.bmj.com/ Gut: first published as 10.1136/gutjnl-2013-306541 on 9 June 2014. Downloaded from · DOI

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Authors
Clarke, S. F., Murphy, E. F., O'Sullivan, O., Lucey, A. J., Humphreys, M., Hogan, A., Hayes, P., O'Reilly, M., Jeffery, I. B., Wood-Martin, R., Kerins, D. M., Quigley, E., Ross, R. P., O'Toole, P. W., Molloy, M. G., Falvey, E., Shanahan, F., & Cotter, P. D.
Affiliations
  • Teagasc - The Irish Agriculture and Food Development Authority (IE)
  • University College Cork (IE)
  • Teagasc Food Research Centre, Moorepark, Fermoy, Cork, Ireland
  • Cork University Hospital (IE)
  • Irish Rugby Football Union (IE)
  • Microbiology Department, University College Cork, Cork, Ireland
  • Department of Medicine, University College Cork, Cork, Ireland
  • National University of Ireland (IE)
Corresponding author
Shanahan, Fergus
Venue
Gut
Publisher
BMJ
Published
2014-06-09
Volume
63
Issue
12
Pages
1913-1920
ISSN
  • 0017-5749 (ISSN-L)
  • 1468-3288
OpenAlex
W2096160104
Cited by
1,439
References
51
Citations by year
2026: 105 · 2025: 143 · 2024: 154 · 2023: 143 · 2022: 183 · 2021: 159 · 2020: 132 · 2019: 118 · 2018: 99 · 2017: 77 · 2016: 56 · 2015: 47 · 2014: 15
FWCI
26.63
Type
journal article
Language
en
Open access
Locations
  • Gut (publishedVersion)
  • PubMed (publishedVersion)
  • HighWire Press Open Archive (submittedVersion)
Funders
  • Science Foundation Ireland (12/RC/2273, 12/RC/)
  • Teagasc
  • Irish Centre for High-End Computing
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Probiotics and Fermented Foods
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
Keywords
physical activity, gut microbiota, microbial diversity, professional athletes, rugby union, protein intake, creatine kinase, inflammation, host-microbe interactions, diet and microbiome
MeSH terms
Adult, Creatine Kinase, Diet, Dietary Proteins, Food Analysis, Humans, Immunity, Inflammation, Male, Sports, Biomarkers, Exercise, Body Mass Index, Gastrointestinal Tract, Sports Nutritional Physiological Phenomena, Microbiota

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