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Knowing the relative value of different types of exercise in lowering blood glucose could help in advising patients who seek exercise options. In this North American trial, researchers randomized 497 adults (mean age, 37) with type 1 diabetes to aerobic, high-intensity interval, or resistance exercise sessions at home. Each group completed at least six 30-minute, video-guided exercise sessions, with continuous glucose monitoring, during 4 weeks. The aerobic and interval groups had specified target heart rates, and the resistance group had a muscle-fatigue target.
During the exercise sessions, mean decreases in glucose levels were 18, 14, and 9 mg/dL for the aerobic, interval, and resistance groups, respectively. On exercise days (compared wi…