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Nutrients 2018, 10(7), 811; https://doi.org/10.3390/nu10070811

Prevalence, Severity and Potential Nutritional Causes of Gastrointestinal Symptoms during a Marathon in Recreational Runners

1
Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool L3 5UA, UK
2
School of Health Sciences, Liverpool Hope University, Liverpool L16 9JD, UK
3
Homerton University Hospital NHS Foundation Trust, London E9 6SR, UK
*
Author to whom correspondence should be addressed.
Received: 21 May 2018 / Revised: 15 June 2018 / Accepted: 20 June 2018 / Published: 24 June 2018
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Abstract

The purpose of the present study was to investigate the prevalence of gastrointestinal symptoms (GIS) amongst recreational runners during a marathon race, and potential nutritional factors that may contribute. Recreational runners of the 2017 Liverpool (n = 66) and Dublin (n = 30) marathons were recruited. GIS were reported post-marathon and we considered GIS in the 7 days prior to the marathon and during the marathon using the Gastrointestinal Symptom Rating Scale (GSRS). Nutritional intake was recorded using food diaries for the day before the race, morning of the race, and during the race; 43% of participants reported moderate (≥4) GIS in the 7 days prior to the marathon and 27% reported moderate symptoms during the marathon with most common symptoms being flatulence (16%) during training, and nausea (8%) during the marathon race. Correlations between all nutritional intake and GIS were not statistically significant (p > 0.05). There were significant correlations between total GIS score (r = 0.510, p < 0.001), upper GIS score (r = 0.346, p = 0.001) and lower GIS score (r = 0.483, p < 0.001) in training and during the marathon. There appears to be a modest prevalence of GIS in recreational runners, in the week prior to a marathon and during marathon running, although there was no association with nutritional intake before or during the race. View Full-Text
Keywords: marathon running; gastrointestinal symptoms; sports nutrition; carbohydrates marathon running; gastrointestinal symptoms; sports nutrition; carbohydrates
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Pugh, J.N.; Kirk, B.; Fearn, R.; Morton, J.P.; Close, G.L. Prevalence, Severity and Potential Nutritional Causes of Gastrointestinal Symptoms during a Marathon in Recreational Runners. Nutrients 2018, 10, 811.

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