HIGHLIGHTS
SUMMARY
METHOD Research objects This paper takes 50 male table tennis players as subjects. Sport class M={m1, m2,, mn } A collection of all places where local injuries to the human body may occur is given in the text. In this paper, it is assumed that the confidence level of the j physical injury point caused by the i intense exercise influencing factor is expressed as γij=nj (mj). λij represents the degree of membership of mi to mj: 10 years and above National level Provincial Primary school Junior high school High school The questionnaire . . .
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