ABSTRACT
Objective@#This paper analyzes the changing trends of lower limb strength and flexibility in colleges in Ningxia for 14 years, and provides a reference for government and school to jointly guide college students to improve their lower limb strength and flexibility.@*Methods@#Data of physical health of 19 to 22 years old college students in Ningxia were collected from 2000-2014. Mean value, standard deviation and index compliance were used to describe the development trend of lower limb strength and flexibility indexes.@*Results@#From 2000 to 2014, the variation trend of lower limb strength of boys and girls in ningxia university was basically the same, and they all decreased first, then increased and then decreased(P<0.05). The variation trend of flexibility of boys and girls was basically the same, rising first and then falling (P<0.05). The mean values of standing long jump and sitting forward bend of boys and girls were higher in rural area than in urban area (P<0.05). There was no age group difference in the mean of standing long jump of girls in 2014, and no age group difference in the mean of standing long jump of boys and girls in other years (P<0.05).@*Conclusion@#The lower limb strength and flexibility of boys and girls in Ningxia from 2000 to 2014 showed a declining trend, and effective intervention measures should be taken in time.