THE ATHLETE WITH TYPE-I DIABETES - MANAGING INSULIN, DIET AND EXERCISE

The numerous benefits of exercise for patients with insulin-dependent (type I) diabetes mellitus include an increase in insulin sensitivity and a reduction of blood glucose levels. However, competitive athletes with type I diabetes must be careful when planning to exercise. The m ost common potential complications in these athletes include exercise- induced hypoglycemia or hyperglycemia and postexercise hypoglycemia du e to increased insulin sensitivity. With proper modifications of insul in dose and diet, plus careful blood glucose monitoring, athletes with type I diabetes can exercise safely and regularly. To prevent hypogly cemia, the insulin dose may need to be reduced by 30 to 50 percent bef ore exercise. Avoiding regular insulin at bedtime and reducing the eve ning insulin dose may help prevent nocturnal hypoglycemia after exerci se. A tailored diet should reduce the chance of hypoglycemia.