Quantitative comparison study of static postural balance of children with different sexes and ages

Objective: To explore the influences of different sexes and ages on children static balance at the basis of quantitative comparison study of static postural balance of children aged 6—8(-year-odl). Method: A total of 499 children aged 6-8-year-old were recruited,which include 254 boys and 245 girls. Static postural balance test of these subjects was performed by using KY -1112 system for stabilometric analysis with subjects opening and closing eyes situations. Result: ①There was a significant gender difference in static balance. At gender comparison, there was a significant difference on 3 indicators at the situations with eyes opening (P0.05), and 3 indicators at the situations with eyes closing (P0.01). ②A significant difference was shown in age comparison on 5 indicators (P0.05). The mean of 5 indicators decreased with age growing. As compared with the value among Eve Area (with eyes opening and closing) and Track Location Variance (with eyes opening), there was a significant difference between children aged 8-year-old and 6—7-year-old (P0.01),and no significant difference between 6-year-old and 7-year-old. There was a very significant difference on the LNG indicators at the situations with eyes opening and closing (P0.01). ③ The value R indicator was less than 1. Conclusion: To the children aged 6—8-year-old, there was significant gender difference in static balance, the balance function of girls was better than that of boys; there was significant age difference in static balance, with age growing the static balance rose also; relatively speaking, the gravity center shaking area was larger at forward and backward than that at leftward and rightward.