The role of exercise in diabetes management

Monitor blood glucose level before, during and for up to 24 hours after exercise. Ensure refined carbohydrate snack is taken prior to exercise. Reduce insulin dosage if possible. Inject insulin away from any exercising muscle. Remember that glycogen stores are replenished in two phases: immediately after the exercise and two to three hours later. These are the key risk times for hypoglycaemia. If blood glucose control is poor (14 mmol/litre or higher) prior to exercise, the 'stress' effect of the exercise may cause further increases in the blood sugar level unless control is achieved.