As a general rule there are 4 options for preventing hypoglycaemia and trying to stabilise blood sugar during exercise.
-Take in extra carbohydrates to match the amount used up during exercise (see ExCarbs)
-Decrease the amount of insulin taken with the meal before the exercise (see adjusting meal time insulin)
-Decrease the bolus insulin dose that is active during exercise (see adjusting bolus insulin)
-A combination of the 3 above (see combination method)
The trick is to work out which is best for you depending on what method of insulin delivery you have, what time you are exercising after a meal and whether you are trying to lose weight too!
Our aim at Excarbs.com is to help people with diabetes using insulin to feel comfortable with taking up exercise – our advice is not aimed at elite athletes but hopefully covers the basic rules for most people living with diabetes.
Remember that if exercise is sustained you will become much more sensitive to the effect of insulin and the dose needed will fall which is a really good result!