什么是体质,它的范畴是什么,如何测定与评价,这是当前体质研究工作的重要课题。目前国内外对体质的评价方法很多,通常采用指数法、离差法、百分位数法和普通相关法等,这些方法经过实践检验,虽然简便易行,但都有一定的局限性和片面性,有的使用不慎还会出现谬误。为了正确地反映人的体质状况,体质研究工作者正在苦心探索新的方法。笔者认为,人体,特别是处在生长发育阶段的青少年儿童的身体,是一个复杂的典型的Fuzzy系统。所谓体质的“好与坏”以及影响体质好坏的各种因素,诸如:肌肉的坚实程度,机体器官新陈代谢的能力,身体素质与运动能力,心理发育水平,适应能力等等,都是一些Fuzzy What is the constitution, what is its category, how to measure and evaluate, which is an important issue of current constitutional research. At present, there are many methods of physical evaluation at home and abroad, usually using exponential method, dispersion method, percentile method and ordinary correlation method. These methods have been tested by practice, although they are simple and easy to implement, they all have certain limitations and one-sidedness , And some use mistakenly there will be a fallacy. In order to correctly reflect the physical condition of people, physique researchers are painstakingly exploring new ways. The author believes that the body, especially in the growth and development of young children’s body, is a complex typical Fuzzy system. The so-called physical “good and bad” as well as affect the physical fitness of a variety of factors, such as: muscle firmness, organ metabolism, physical fitness and sports ability, mental development, adaptability, etc., are some Fuzzy