A Study On Regional Differences Of Physical Fitness, Youthdevelopment And General Self-efficacy Of Childrenand Adolescents In Jiangxi Province

In order to know the physical and mental characteristics of primary and middle school students in different regions of Jiangxi province and provide reference as well as basis for promoting students’ physical and mental health This study selected those primary and middle school students aged from 7 to 17 years old of Nangchang Jiujiang and Ganzhou in Jiangxi province,using questionnaire survey on youth’s development period,general self-efficacy and vital capacity,50meters race and bone’s density and it aimed at inquiring into the correlation of children’s youth system.general self efficacy sense as well as youth development in Jiangxi province The study measured and recorded the children and adults aged from 7 to 17 years old in Ganzhou Jiujiang and Nanchang region,and a total of 5695 people’s height.weight, vital capacity,50meters race and it randomly selected from different age groups,of which Jiujiang region 729 people,ganzhou region 814 people, Nanchang region 311 people and give out general self-efficacy scale as well as youth scale.Physical aspects.HeightThere are regional differences in height of children aged from 7 to 17 in these three regions.Nanchang region has common early height spurt and higher height,while students of Ganzhou has late height spurt and slightly lower hight of boys.WeightGanzhou boys’weight is slightly lower than that of Nanchang Jiujiang region,and their weight spurt is slightly later. In these three regions girls’weight spurt is in 11 to 12 years old.But the peak of girls’weight appears in 13 to 14 years old in Nanchang and Jiujiang region,until they are 17 years old.The boys’proportion of overweight in Jiujiang region was larger than that two regions, while the propotion of Ganzhou region is obviously lower than the other two regions.But the propotion of girls’overweight and obesity in these three regions is similar.The proportion of overweight of bouys and girls in these three regions is higher when they are 7 years old.(3)Vital capacityThe vital capacity of children and adults has been affected a lot by age. Boys increase quickly at the age of 10 to 15 years old, while girls at the age Df 9 to 14 years old.The vital capacity of boys and girls in Gan zhou region has always been of high-level, and the difference Df 17 years old boys in these three regions is small. The peak of vital capacity of boys in these three regions appears at almost the same time, while the peak of girls in Gan zhou appears later.Bone’s densityThe proportion of boys among children and adults who are above the normal number of density in Nanchang region is 72.2%, while that of girls is 53.8%, which shows that most students’ bone in Nanchang region develop normally. The proportion of boys aged from 11 to 13 who have osteoporosis has been increasing, and so do girls aged from 10 to 11.50 meter-raceThe level of boys from 7 to 15 years old goes up with the rise of age. It is generally believed that the grade of girls aged from 7 to 12 will gradually improve, but stay the same after 14 years old and even worse. Whether to boys or girls, the difference of 50 meter race’s grade in these three regions is small.