Exercise training protocols
The children in both exercise groups (MICE and HIIE) were trained three separate days per week (e.g., Monday, Wednesday, and Friday) for 8 consecutive weeks. All training sessions were performed after school on an outdoor athletic field and were supervised by a trainer or assistant trainer. Training sessions consisted of a 5 min warm-up and cool-down at approximately 50%MAS. The warm-up included 3 min of moderate-intensity jogging and 2 min stretching.