为了解我省不同民族学生体质机能的发育情况，为开展不同层次的体育活动及领导决策提供科学依据，我们利用本省1991年大、中、小学生体质调研资料进行青海四民族学生机能指标的分析，改变了以往用t检验作单项单因素分析而出现的有的年龄组有差异而有的年龄组无差异的不合理现象 In order to understand the physical development of students in different ethnic groups in our province and provide scientific evidences for different levels of sports activities and decision-making, we analyzed the performance indicators of students from four nationalities in Qinghai by using the survey data of the constitution of primary, middle and primary school students in 1991 in our province, Changed the t-test used in the past as a single univariate analysis of the emergence of some differences in the age group there are some differences in the age group unreasonable phenomenon