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Sesboüé Bruno M.D.; Arhan, Pierre M.D.; Devroede, Ghislain M.D.; Lecointe-Besançon, Isabelle M.D.; Congard, Patrick M.D.; Bouchoucha, Michel M.D; Fabre, Jacques M.D.
Journal of Clinical Gastroenterology: April 1995
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To evaluate the effects of exercise on colonic function, we measured total and segmental transit times in 11 male soccer players and nine male radiology student technicians. Diet was kept constant in all subjects, who maintained their normal activities. For the soccer players, normal activities included 15 h of training and one match each week. Transit times were measured with radioopaque markers, using the multiple-ingestion, single-radiograph technique. No overall difference in large bowel transit was observed between the two groups. Right colon transit was considerably slower in the soccer players, whereas left colon and rectal transit were slightly accelerated. We conclude that an intensive sport activity only modifies regional differences in large bowel function. This may be of importance in extreme conditions, such as those experienced by marathon runners. Data should be obtained before prescribing exercise to treat constipation.

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