Security issues have been plaguing carry out a comprehensive school sports activities,
as well as student safety lifeline. Under the "safety first" mentality, there are a considerable number of physical education teachers fear students were injured in sports activities, causing unnecessary trouble (such as schools and parents of the accused, and even financial compensation), so always physical education careful, almost afraid to let students open movement, resulting in the instrument lesson "broken teach" phenomenon. Physical activity has a strong and competitive challenges, but also has a certain degree of risk, always inevitably happen one way or another injury, physical education teachers in order to avoid the occurrence of such incidents, "unworthy", reached a "rather do not sit dead run dead "consensus, leading to years of student physical decline. How to carry out a comprehensive school physical activity, in addition to strengthening the sense of responsibility and dedication of teachers, there is a certain degree of predictability of the accident, to avoid injuries, the most important laws and regulations, but also a guarantee for schools, teachers, parents understand respective rights and responsibilities, to solve the worries of physical education teachers, so that they do not in order to avoid accidents on the grounds, arbitrarily reduce the teaching content and extracurricular sports activities at the expense of the health of student life at the cost of temporary peace. This article from another angle causes students to analyze the reasons for physical decline in real terms, in order to arouse the attention of all aspects, to improve the physical health of students open your mind.