Whether blood sugar will rise just after exercise is related to the amount of exercise. Usually, blood glucose will not rise after light to moderate aerobic exercise; after high intensity exercise, blood glucose may rise immediately. 1. Light to moderate exercise: Generally aerobic exercise, the body does not consume much energy, so blood glucose will not rise just after exercise and fluctuate within the normal range. After exercise, although glucagon hormones, such as adrenaline, norepinephrine and adrenocorticotropic hormone, are elevated, insulin, which lowers blood glucose in the body, can be secreted on demand, so the concentration of blood glucose in the body can be maintained within the normal range and generally will not rise; 2. High-intensity exercise: anaerobic exercise stimulates sympathetic nerves, promotes the release and secretion of adrenaline, norepinephrine and adrenocorticotropic hormone The blood sugar will rise just after exercise because it stimulates the conversion of liver glycogen into glucose. If a diabetic patient exercises under the condition of high postprandial blood glucose, the blood glucose will rise more significantly just after exercise. So diabetic patients generally do not recommend high-intensity exercise after meals, it is recommended that 0.5-1 hours after meals exercise for about 30 minutes, the amount of activity should not be too large, so that the safety factor will be higher.