The Effect of High-Intensity Interval Training(HIIT) on Cardio-metabolic Indicators in School-age Children With High Cardiovascular Diseases Risk--a Randomised Intervention Trial is a NA clinical asset sponsored by Children's Hospital of Fudan University in Cardiovascular Syndrome, Metabolic. SEO and diligence focus: HIIT intervention, General health education, endpoint relevance, enrollment feasibility, competitive positioning, readout timing and IP durability.