A: Overnight insulin delivery in units/h 7–11 h postexercise (10:00 p.m. to 2:00 a.m.), with CL associated with lower insulin delivery (P = 0.008). B: Plasma insulin levels between 10:00 p.m. and 2:00 a.m., with trend toward significance for lower plasma insulin levels on CL nights vs. OL nights (P = 0.06). CL-E, CL exercise (solid line); OL-E, OL exercise (dashed line).