The authors compared the contents of children and adolescent physical activity guides of China,the United States,Britain,Canada and Australia,and revealed the following findings:1)in the guides of these countries,the definitions of the ages of children and adolescents are slightly different,coupled with school age divisions of the basic education systems;2)the establishment subjects of the guides of these countries are different;3)the specific operable objectives of the guides of these countries have respective features;4)in the guides of the U...
