Gut Microbiome Profiles in Cyclists and Runners
Author Information
Author(s): Guy Shalmon, Rawan Ibrahim, Ifat Israel-Elgali, Meitar Grad, Rani Shlayem, Guy Shapira, Noam Shomron, Ilan Youngster, Mickey Scheinowitz
Primary Institution: Tel Aviv University
Hypothesis
The gut microbiome signature is sport-specific and differs between female and male cyclists and runners.
Conclusion
The study found significant differences in gut microbiome profiles between long-distance cyclists and runners, suggesting sport-specific characteristics.
Supporting Evidence
- Alpha diversity was significantly lower in cyclists than in runners.
- Male runners exhibited higher time-to-exhaustion than male cyclists.
- Female cyclists showed a higher abundance of certain beneficial bacteria compared to female runners.
- Distinct microbial patterns were observed in cyclists and runners, indicating sport-specific gut microbiome profiles.
Takeaway
Cyclists and runners have different types of bacteria in their guts, which might help them perform better in their sports.
Methodology
Fecal samples were analyzed using 16S rRNA sequencing, and participants completed exercise tests to assess performance.
Potential Biases
Potential recall bias in self-reported training and dietary habits.
Limitations
The study relied on self-reported dietary data and did not control for factors like sleep and stress that may influence gut microbiota.
Participant Demographics
58 subjects: 18 cyclists (9 males), 22 runners (13 males), and 18 controls (9 males), mostly Ashkenazi Jews.
Statistical Information
P-Value
p-adj < 0.001
Statistical Significance
p-adj < 0.001
Digital Object Identifier (DOI)
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