CGM and insulin in the hours before and after exercise are expected for APEX (red) and HCL (blue). (A, B) Correspond to exercise day (gray banner) and (C, D) to sedentary day. (A, C) CGM glucose values median (filled line), quartiles (envelopes), and minimum/maximum (dotted lines). Triangles are hypoglycemia treatments. (B, D) Insulin injections median (filled line) and quartiles (envelopes). APEX; CGM, continuous glucose monitor; HCL, hybrid closed-loop.