Gastrointestinal Problems in Runners

Abstract

This article reviews the literature regarding gastrointestinal disturbances specifically in runners. Upper gastrointestinal problems such as reflux, nausea, vomiting, and gastritis are reviewed. Exercise has been found to alter esophageal motility. These symptoms worsen with increased exertion as well. H(2) blockers have been found helpful for reflux and nausea. The lower intestinal problems of motility and blood loss are discussed. These problems are generally more common and more directly related to running. Also reviewed are endotoxin involvement and transient abdominal pain. Much of the literature deals with marathon and ultramarathon running, showing the extreme effects of running and exertional stress on the body; however, recreational runners may not be so afflicted as these study participants.

Daily Probiotic’s (Lactobacillus casei Shirota) Reduction of Infection Incidence in Athletes

“…Probiotic intake might help reduce the incidence of infection in athletes by improving immune function; there is some limited evidence to support this (West, Pyne, Peake, & Cripps, 2009). A substantial proportion of runners and triathletes also report gastrointestinal (GI) problems (e.g., abdominal discomfort, diarrhea) during long-distance training runs or competitive events (Simons & Kennedy, 2004). Probiotics could possibly have a beneficial effect in preventing such symptoms in these individuals by improving gut-barrier function (Collado, Isolauri, Salminen, & Sanz, 2009;Kekkonen et al, 2007;Mengheri, 2008).…”

Exploring eating disorder quality of life and functional gastrointestinal disorders among eating disorder patients

“…These results suggest that laxatives may be producing the symptoms. Esophageal disorders were reported in patients who were exercising excessively; it is difficult to explain this finding as patients who exercise excessively are less likely to vomit, but the amount and intensity of the daily exercise can be extreme [9], and upper gastrointestinal problems are common in marathon runners [20]. Pelvic floor dyssynergia was more likely to be reported by patients dieting less and may be body weight related.…”

Ultramarathon Running: Medical Issues

“…In a mountain ultra-marathon, forty-three percent of all subjects complained of gastro-intestinal distress during the race [49]. A potential reason for these problems could be that exercise has been found to alter esophageal motility [51]. However, also pre-race experience could be an explanation.…”