INS and Hypoglycemia: Including a sensor to measure exercise will not enable reducing insulin infusion before exercise, but it can be used to reduce insulin infusion during and also after exercise, as exercise also influences glucose concentrations several hours after exercise.22,45 Especially for exercise performed before the evening this may be an additional measure to reduce the risk of hypoglycemia.51 Sensors that are being investigated to measure exercise for closed-loop glucose control include accelerometers, heart rate and temperature sensors.