Check your blood glucose before and after exercise, especially if you are just beginning an exercise routine. Remember, exercise helps your body to use insulin and blood glucose more efficiently. Simply put, exercise will usually lower your blood sugar.
Check blood sugar before exercise, especially if you are just beginning an exercise routine. Delay exercise if blood sugar is above 300mg/dl, less than 70mg/dl, or you have urine ketones and contact your physician or diabetes educator for further advice.
Check blood sugar after exercise to help detect if blood sugar is getting too low. Exercise can affect blood sugars for several hours, but usually only causes a low blood sugar if you are taking certain diabetes medications. In general, eat 15 grams of carbohydrate if you exercise longer than one hour OR if your blood glucose is less than 100mg/dl after exercise and the next scheduled meal or snack is more than an hour away.
Contact your diabetes educator or physician if you have any questions or concerns about exercise and blood sugar.