These include the type of exercise you choose, the intensity with which you exercise, and the length of time you spend exercising. If you exercise long and hard, you will probably deplete your glycogen stores in the muscles and liver that will be replaced by taking glucose from your blood. When and what you last ate at your recent meal or snack and your level of fitness also influences what happens to your blood glucose level while you exercise. This type of exercise usually lasts for 20 minutes or has periods of high-intensity activity interspersed with low intensity activity. These short term, stressful forms of exercise may lead to transient phases of hyperglycemia especially so in less well-trained individuals.
Blood glucose can also become elevated after exercise as a result of insulin deficiency.
You really need to check your daughter's blood glucose levels before and after exercise. If your daughter is engaging in an activity for the first time, it is equally important that you check her blood glucose level thirty minutes into the activity. If ketones are present, do not exercise. In the presence of ketones, exercise can worsen blood glucose control. Comments and Feedback .