Effect of Exercise on the Absorption of Inhaled Human Insulin in Subjects With Type 1 Diabetes

Inclusion Criteria: * Type 1 diabetes more than or equal to 12 months * Baseline HbA1c less than or equal to 11% * Body mass index (BMI) less than or equal to 29 kg/m2 * Normal lung volumes * Treatment with intensified insulin therapy for at least 3 months Exclusion Criteria: * Any present or history of pulmonary disease * Any findings from the cardiopulmonary exercise test compromising safety of moderate exercise * Impaired hepatic or renal function * Cardiac problems * Uncontrolled hypertension * Current proliferative retinopathy or maculopathy * Treatment with drugs, which may interfere with insulin action, glucose metabolism or recovery from hypoglycaemia (judged by investigator) * Current smoking or smoking within the last 6 months * Blood donation (more than 500 mL) within the last nine weeks