Comparative Analysis of Gut Microbiota Following Changes in Training Volume Among Swimmers

Abstract Exercise can influence gut microbial community structure and diversity; however, the temporal dynamics of this association have rarely been explored. Here we characterized fecal microbiota in response to short term changes in training volume. Fecal samples, body composition, and training lo...

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Bibliographic Details
Published in:International journal of sports medicine 2020-05, Vol.41 (5), p.292-299
Main Authors: Hampton-Marcell, Jarrad Timothy, Eshoo, Tifani W., Cook, Marc D., Gilbert, Jack A., Horswill, Craig A., Poretsky, Rachel
Format: Article
Language:English
Subjects:
Adolescent
Body Composition
Comparative analysis
Energy Metabolism - physiology
Feces
Feces - microbiology
Female
Gastrointestinal Microbiome
Humans
Longitudinal Studies
Male
Microbiota
Physical Conditioning, Human - methods
Physical Conditioning, Human - physiology
Physiology & Biochemistry
Swimming
Swimming - physiology
Young Adult
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Summary:Abstract Exercise can influence gut microbial community structure and diversity; however, the temporal dynamics of this association have rarely been explored. Here we characterized fecal microbiota in response to short term changes in training volume. Fecal samples, body composition, and training logs were collected from Division I NCAA collegiate swimmers during peak training through their in-season taper in 2016 (n=9) and 2017 (n=7), capturing a systematic reduction in training volume near the conclusion of their athletic season. Fecal microbiota were characterized using 16S rRNA V4 amplicon sequencing and multivariate statistical analysis, Spearman rank correlations, and random forest models. Peak training volume, measured as swimming distance, decreased significantly during the study period from 32.6±4.8 km/wk to 11.3±8.1 km/wk (ANOVA, p
ISSN:0172-4622
1439-3964
DOI:10.1055/a-1079-5450