Exercise therapy is one of the basic measures for comprehensive treatment of diabetes, and scientific and reasonable exercise is helpful to lower blood sugar. As for the increase of blood sugar in some patients after exercise, it may be related to improper exercise methods (such as taking high-intensity and intense anaerobic exercise) and excessive exercise. Both of these conditions will cause sympathetic nerve excitement, increase the secretion of glucagon such as adrenaline, and thus cause blood sugar to rise. I suggest you adjust your exercise mode and adopt aerobic exercise mode, such as jogging, brisk walking, swimming, doing aerobics and cycling. And pay attention to the intensity and amount of exercise should not be too large.
When the plasma insulin concentration is relatively low and muscles are insensitive to insulin, exercise can enhance the intake and utilization of glucose and free fatty acids. Exercise can promote the utilization of fat, reduce weight, improve the sensitivity of skeletal muscle cells to insulin, enhance the utilization of glucose, reduce the burden of β cells, and correct the disorder of glucose metabolism caused by relative lack of insulin or insulin resistance.
Studies have found that when people's exercise intensity exceeds a certain limit, the blood sugar level will rise, generally 80% ~ 90% of the maximum heart rate (the maximum heart rate is generally 220 years old). When the intensity of exercise exceeds this limit, it becomes difficult for us to breathe and we have to gasp to meet the body's demand for oxygen. At this time, the sympathetic nerve is obviously excited, which stimulates the release of adrenaline and norepinephrine, and stimulates the liver to convert stored glycogen into glucose and release it into the blood. When blood sugar rises faster than the speed at which muscle absorbs blood sugar, blood sugar naturally rises.
We usually advise patients to do mild or moderate intensity aerobic exercise, but some young patients think that more intense exercise is better for lowering blood sugar, so they increase the intensity of exercise on their own, but they don't know that too intense exercise will lead to an increase in blood sugar rather than a decrease. For some patients, if the intensity is too high, there is a risk of hypoglycemia. Therefore, proper exercise intensity also plays a vital role in controlling blood sugar.
If the blood sugar is already high before exercise (such as 15mmol/L), it means that insulin deficiency is serious. If you exercise again at this time, it will increase the burden on the pancreas and aggravate insulin deficiency. Cells can not use the sugar in blood to provide energy, but will decompose protein and fat to provide energy, which can induce ketosis or ketoacidosis.
It can be seen that the choice of exercise mode and exercise intensity for diabetic patients should not be carried out casually, but should be carried out in a planned and step-by-step manner. Measuring blood sugar before exercise is very important in logistics. On the long road of anti-sugar, only an optimistic attitude is far from enough, but also persistent patience and care can make this road wider and wider.