Participants
overweight
Forty male children with overweight aged 7–10 years (including 20 classes, 2 children per class) were recruited from a local primary school in Haidian District, Beijing, China. Children were randomly assigned to HIIE (n = 20; 137.9 ± 7.9 cm; 41.5 ± 7.6 kg; 21.6 ± 1.8 kg/m