The Current And Compared Research Of Physical Development Of Yugu, Bao'an, Dongxiang Nationalities In 3-13 Years Old Between 6 Years

Objective:To analysis the physical development of children aged 3～13 in Yugu, Bao'an and Dongxiang nationalities, then to study the subjects' physical status, basing on children's height, weight, triceps skinfold and mid-arm circumference and other information, to understand the children's body mass index (BMI), and find out the current nutrition issues of children finally, comparing with the children's survey data searched in 2003 in the same district, discuss the differences between 2009 and 2003 in physical development, so as to offer basis information for promoting the physique growth trend of the children, then in order to promoting the region to improve nutritional status and providing reliable information for scientific research.Method:The objects, were 3～13 years old, randomly selected from kindergarten and school by cluster sampling in Yugu, Bao'an, and Dongxiang nationalities, live in concentrated communities. Anthropometric measure (including height, weight, triceps sinkfold and mid arm circumference investigated with a self-designed questionnaire) were put into the practice, calculated body mass index, and compared in three nationalities. Compared the mean of height and weight to the standard values by the Ministry of Public Health(called the 2010 criterion), and compared BMI to the body mass index reference values by World Health Organization(called the WHO standards), analyzed and evaluated the children's physical status in three nationalities.Results:1 Height and weight measurements(1)When the age increased, the height and weight values growing at the same time, they have a positive correlation with age. (2)The growth curve of height and weight were crossed twice. (3)The physical measurement was not exist differences between girls and boys. The girls' shape were similar with boys' before nine years old, after that, their linear physical form declined. (4)The height and weight value of children of Yugu nationality are higher than Bao'an and Dongxiang, other children of Bao'an and Dongxiang nationalities had the same characteristic. Among them, the ratio of thinness and overweight in 3～13 aged children of Yugu nationality is 10.61% and 6.82%. The proportion of thinness and overweight in 3～13 aged children of Bao'an nationality was 3.53% and 3.53%.The proportion of thinness and overweight in 3～13 aged children of Dongxiang nationality was 9.19% and 2.53% respectively. In the same age group (3～6 years old), the level of children's height and weight after six years were in good conditions, were higher than the average data searched six years ago, but still lower than the national average level, and still existed significant differences with WHO values.2 TSF and MUAC measurements(1)When the age increased, the TSF (triceps skin-fold) and MUAC (mid upper arm circumference) values growing at the same time. (2)The TSF values of Yugu nationality children in 3～13 years old were the first, the second was the children of Dongxiang nationality, the smallest were children of Bao'an nationality. (3)The change of MUAC values was small, had no significant difference in the three nations. The boys' MUAC values were bigger than girls' in the same age in 3～6 years old group. The difference of arm circumference was larger than girls'. The girls' TSF and MUAC values were larger than boys' in 7-13 years old group. (4)In the same age group, the children of Yugu nationality, whose triceps and abdominal skin-fold values were increased significantly, only other children of Bao'an and Dongxiang nationalities were less than them. The average values of children's abdominal skin-fold of Dongxiang nationality, the differences between age and gender were small. (5)The TSF and MUAC differences between the intervention group and intervention group were not significant.3 The comparison with height and weight after 6 yearsThe children's height and weight increased quickly in six years, showed a faster growing speed, the height, weight level had the better improved, but the amplitude growth of weight was more than height, it indicated that the thinness ratio was higher in children of Yugu and Dongxiang nationalities. The girls'growth development was inconsistent with boys. A single child exist the problem of overweight and thinness. The intervention children compared to other children, their height, weight values increased obviously.Conclusion:The Yugu children's height, weight level were the best, the children of Bao'an and Dongxiang nationalities had the similar changing tendency, but studied from the height and weight of the data, only children of Bao'an nationality were below children of Dongxiang. The children's height, weight of three peoples were increased in 3-13 years old, it reflected the local people's living level was enhanced, but the average national level of Bao'an and Dongxiang nationalities were lower than the national reference value, having potential ability.At the same time, we find the TSF and abdominal skin-fold were small, these children didn't have fully exercises, the outdoor activities in school can be improved. So, to supply nutrition, then to increase physical exercises simultaneously in 3-13 years old, can improve the development trend of children's height, weight. The intervention Children's physical condition was good, it explained that the intervention measure can be used as a good malnutrition improvement measure to be used and promoted.