Analysis of sensitive period of physical fitness of Han students in Yunnan Province
ZHANG Jianyu1, TAN Min2, ZHANG Yaowu3, JI Hong4, CHANG Litao2, HUANG Dafeng2, DENG Shuzhen2
1.Yunnan Open University, Kunming 650022, Yunnan, China; 2.Yunnan Centers for Disease Control and Prevention, Yunnan, Kunming, 650022; 3.Education Bureau of Nujiang Lisu Autonomous Prefecture, Lushui, 673200; 4.Education and Sports Bureau of Honghe Prefecture, Mengzi, 661100.
Abstract：Objective To analyze and explore the current situation of Han students’ sports quality and the characteristics of a sensitive period in Yunnan Province, so as to provide scientific evidence for improving the development of students’ athletic ability. Methods A total of 8 795 Han students aged 7 to 22 in Yunnan Province in 2014 were used as research subjects to study the motor qualities of each age group, such as 50 m running, standing long jump, sit-ups, inclined pull-ups, pull-ups, and grip strength, 50 m×8 round trip, 1 000 m/800 m running and sitting forward flexion. The method of annual growth rate X+s was used to calculate the threshold value of the sensitive period and sensitive age of each physical fitness. The differences in age and sex of various physical qualities in different qualities were compared. Results Overall, except for the flexibility index, the physical fitness of Han students in Yunnan Province increased with age. Only flexibility quality and endurance results (13-22 years old), girls’ results were better than boys, and the rests were the opposite, especially at the age of 14-22 years old who were sexually mature. The sensitive age of girls in all physical qualities was about 2 years earlier than that of boys. The sensitive age of physical fitness of Han students in Yunnan was mainly concentrated in the primary school age group (7-12 years old) (69.70%), followed by in junior high school (13-15 years old) (27.27%). Among the various physical qualities, the sensitive age of speed quality appeared relatively early (7-9 years old), the sensitive age of strength quality appeared relativelylate (10-14 years old), followed by the sensitive age of flexibility quality was 12-14 years old, and the sensitive age of endurance quality appeared at the latest 14-21 years old. In terms of sensitive items, the speed quality had the most sensitive items (12 times), while the endurance quality had the fewest sensitive items (only 4 times). Conclusion Targeted physical exercise measures should be taken according to the sensitive period characteristics of Han students in Yunnan Province, especially the decline of endurance quality.
张剑宇,谭敏,张耀武,季洪,常利涛,黄达峰,邓淑珍. 云南省汉族学生身体素质敏感期分析[J]. 中国校医, 2023, 37(9): 687-690,693.
ZHANG Jianyu, TAN Min, ZHANG Yaowu, JI Hong, CHANG Litao, HUANG Dafeng, DENG Shuzhen. Analysis of sensitive period of physical fitness of Han students in Yunnan Province. Chinese Journal of School Doctor, 2023, 37(9): 687-690,693.
2023, Vol. 37 
