Insulin Management for Exercise in Patients With Type 1 Diabetes

The purpose of this study is to compare the time spent in glucose target range (4.0-10.0 mmol/L) during exercise and in recovery using three different basal insulin management strategies for prolonged aerobic exercise: A) pump suspension for the duration of the activity, starting at the onset of exercise; B) A 50% basal rate reduction, performed 90-minutes in advance of exercise for the duration of the activity; and C) An 80% basal rate reduction, performed 90-minutes in advance of exercise for the duration of the activity.