Dr Niels Ørtenblad, an expert on muscle glycogen from the University of Southern Denmark, discusses the history of muscle glycogen research, the effects of diet and exercise on glycogen levels, the correlation between glycogen and muscle fatigue, and the efficiency of carbohydrate use during exercise. The podcast also explores the relationship between exercise intensity and glycogen utilization, the impact of calcium levels on glycogen depletion, and the importance of collaboration in scientific research.