Carbohydrate and Insulin Requirements During Prolonged Fasted Exercise

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 management strategies for prolonged aerobic exercise: A) carbohydrate dose of 0.3g/kg/hr; B) A 50 percent basal rate reduction, performed 90-minutes in advance of exercise for the duration of the activity; and C) A 50 percent basal rate reduction, performed at exercise onset, with carbohydrate dose of 0.3g/kg/hr