Strenuous exercise decreases motility and cross-sectional area of human gastric antrum. A study using ultrasound
| Autor: | Monzer M. Abu-Yousef, Bruce P. Brown, Konrad Schulze-Delrieu, C K Brown, M A Ketelaar |
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| Rok vydání: | 1994 |
| Předmět: |
Adult
Male medicine.medical_specialty Physiology Physical Exertion Physical exercise Internal medicine Heart rate Pyloric Antrum Medicine Humans Antrum Pylorus Ultrasonography Gastric emptying business.industry Stomach digestive oral and skin physiology Ultrasound Gastroenterology digestive system diseases medicine.anatomical_structure Endocrinology Gastric Emptying Cardiology Female medicine.symptom business Muscle contraction Muscle Contraction |
| Zdroj: | Digestive diseases and sciences. 39(5) |
| ISSN: | 0163-2116 |
| Popis: | Gastric emptying in humans is delayed with strenuous exercise. We used ultrasound imaging in six healthy volunteers to determine whether changes in motility and configuration of the gastric outlet contribute to this delay. After fasting, all individuals ingested chicken broth and garbanzo beans. With subjects sitting upright, transverse and longitudinal real-time views of the gastric antrum were recorded on video tape. In the exercise studies, subjects pedaled an ergometer for 10 min to attain a heart rate of 85% predicted maximum. On a different day, all subjects had an identical study without exercise. The order of performance of exercise and no-exercise studies was randomized. After exercise, contraction frequencies and antral areas were significantly reduced compared to the studies without exercise. In addition, after exercise there was closure of the pylorus and tubular narrowing of the gastric antrum. Closure of the pylorus and decreased gastric antral area and motility may be important in explaining the decrease in gastric emptying that occurs with strenuous exercise. |
| Databáze: | OpenAIRE |
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