title: Effects of exercise on mesenteric blood flow in man.
abstract: Transcutaneous Doppler ultrasound was used to assess the effects of exercise on both fasting and postprandial superior mesenteric artery blood flow. After treadmill exercise (speed 5 km/h, gradient 20%, duration 15 min) in 16 subjects, superior mesenteric artery blood flow decreased by 43% immediately after the end of the exercise and by 29% at five minutes and 24% at 10 minutes postexercise. The superior mesenteric artery blood flow response to a combination of a treadmill exercise and a liquid meal in 15 volunteers was significantly smaller at five minutes from the end of the stimuli, than the response to the meal alone (15 controls) (635 +/- 51 ml/min v 846 +/- 72 ml/min) (p less than 0.025), but not different at any other time. Thus exercise reduces mesenteric blood flow in both the fasting and postprandial state in normal subjects.
mesh_terms: D000328:Adult; D001783:Blood Flow Velocity; D005215:Fasting; D005260:Female; D006801:Humans; D008297:Male; D008638:Mesenteric Arteries / Q000502:physiology; D008875:Middle Aged; D005082:Physical Exertion; D013152:Splanchnic Circulation