High-intensity Interval Exercise Compared With Continuous Moderate Exercise on Glycemia in Postabsorptive vs. Postprandial State in Adults With Type 1 Diabetes

This randomized crossover trial examined whether exercise modality (high-intensity interval exercise vs. moderate-intensity continuous exercise) and timing relative to meals (postprandial vs. postabsorptive) influence glycemic responses in physically active adults with type 1 diabetes. Participants completed four cycling sessions matched for total mechanical load, and glucose levels were monitored during exercise and for 24 hours afterward while accounting for dietary intake and insulin administration. The study hypothesized that glycemic responses differ according to both exercise type and prandial state.