心脑血管疾病是当前引起我国及其他发达国家人群死亡的主要原因。近年来,随着医学科学的发展,对本类疾病的病因、发病机理进行了深入的研究,认为心血管疾病的好发年龄虽为中老年阶段,然其有关危险因素的形成则始于生命早期,更可能与个体早年的体质状况、身体成份、缺乏体育锻炼及不良的饮食卫生习惯等生活方式有关。故不少学者认为应把预防的重点置于儿童少年期。为了解不同体育锻炼量与心血管疾病有关 Cardiovascular disease is currently the main cause of death in China and other developed countries. In recent years, with the development of medical science, the etiology and pathogenesis of this disease have been deeply studied. Although the incidence of cardiovascular disease is middle-aged and elderly, the formation of related risk factors starts from early life More likely to be related to the lifestyle of the individual in his early years, body composition, lack of physical activity and poor dietary hygiene habits. Therefore, many scholars believe that prevention should be put in the focus of adolescence. To understand different physical exercise levels and cardiovascular disease