Objective To analyze the correlation between body mass index (BMI) and physical health indicators of preschool children, in order to provide basis for improving their health condition. Methods From September to October 2020, 3 484 children aged 3 to 6 were randomly selected from 25 kindergartens to take physical measurements and physical fitness tests, including 10-meter round-trip running, tennis long throw, balance beam walking, double-foot continuous jump, standing long jump, seated forward bending 6 items. BMI was assessed according to BMI Standards for Children from 2 to 6 Years Old. Physical fitness was monitored comprehensively according to the National Fitness Measurement Standard Manual (Children Part). The correlation between different BMI and physical health indicators of preschool children was analyzed. Results Among 3 484 children, 1 860 were boys (53.39%) and 1 624 were girls (46.61%). According to BMI evaluation, 77 were wasting (2.21%), 2 765 were normal weight (79.36%), and 424 were overweight (12.17%), 218 people were obese (6.26%), and the difference in BMI distribution between boys and girls was statistically significant (χ2 =77.356, P＜0.001). The unqualified rates of physical fitness monitoring in children with wasting, normal weight, overweight and obesity were 38.96%, 7.63%, 13.44%, and 31.65%, respectively. Four groups of children with different BMIs had statistically significant differences in sitting position, standing long jump and tennis throw of physical fitness monitoring (P<0.05), the sitting body flexion of children in the wasting group and the obese group were smaller than those in normal and overweight children. The standing long jump of overweight children was larger than that of the normal and obese children. The tennis throw of the normal weight children scored lower than that of overweight and obese children. Conclusions The physical health status of preschool children in different BMI groups in Lishui City varies greatly between boys and girls. Obese and wasting preschool children have a higher rate of failure in physical fitness monitoring, and it is recommended that preschool children should be kept within a normal weight range in order to improve their physical health.
Key words
preschool children /
body mass index /
physical fitness
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