儿童青少年是国家和民族的未来,其生长发育包含着许多复杂的生物学现象和变化过程。生长发育的研究指标通常包括体格发育、身体功能和运动素质发育3个方面,是儿童青少年主要健康指标之一。个体生长发育水平反映个人的健康状况,群体生长发育水平常被认为是社会发展和文明的重要标志。儿少 Children and adolescents are the future of nations and nations, and their growth and development involve many complicated biological phenomena and changes. Growth and development of the research indicators usually include physical development, physical function and motor development in three aspects, is one of the major health indicators of children and adolescents. Individual growth and development level reflects the individual’s health status, group growth and development level is often considered an important symbol of social development and civilization. Children less