Patient's question:
How long after dinner should a 9-year-old child wait before engaging in activities? Is it based on her gastric emptying time? It's better to wait until after gastric emptying before doing jumping or bouncing exercises, which would be good for her stomach. But what is her gastric emptying time?Doctor's answer:
Enhancing factors: a. Gastric food volume; b. Gastrin.Inhibiting factors: a. Gastrointestinal irradiation; b. Enterogastrone: secretin, gastrin-releasing peptide, cholecystokinin, etc. Factors in the small intestine play a negative feedback regulatory role.
The specific process of gastric emptying: The impact of food on the gastric wall is the driving force for gastric emptying. When the pyloric sphincter opens, gastric activity increases. When the intragastric pressure exceeds the duodenal pressure, the gastric contents can enter the duodenum. Once the gastric contents enter the duodenum, they stimulate various receptors in the intestinal wall, reflexively causing the gastric activity to weaken, slowing down emptying, and inhibiting gastric activity and emptying.