Abstract：
:To examine the premise that exercise reduces the gastrointestinal transit time, we evaluated the effect of walking 4.5 km in an hour on mouth-to-cecum transit time. Twenty-three healthy volunteers, 9 men and 14 women, with an age range of 19-28 yr, were studied. After an overnight fast, the subjects ingested 10 g of lactulose in 150 ml of water while breath hydrogen concentrations were analyzed at 15-min intervals. On separate days, in random sequence, subjects either sat in a chair or walked on a treadmill for 60 min. Mean transit time was 55 +/- 8 min when resting and 89 +/- 4 min when exercising (p less than 0.001). In conclusion, light aerobic exercise prolonged the mouth-to-cecum transit time. On the basis of this observation, exercise as a causative factor in runner's diarrhea and its value in the management of chronic constipation may be questioned.
journal_name
Gastroenterologyjournal_title
Gastroenterologyauthors
Meshkinpour H,Kemp C,Fairshter Rsubject
Has Abstractpub_date
1989-03-01 00:00:00pages
938-41issue
3eissn
0016-5085issn
1528-0012pii
0016-5085(89)90925-6journal_volume
96pub_type
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