1. Sports media refers to the contents and forms that support the interaction between sports participants and sports instructors during the activities.
2. The function of sports refers to the beneficial effect and efficiency that sports can give back to people and society.
3. The purpose of sports in our country is to enhance physical fitness, improve health, improve people's lifestyle, improve the quality of life, and promote the healthy and civilized development of social economy.
4. Exercise load: also known as physiological load, refers to the amount of physiological burden borne by individuals in sports.
5. Physical education textbooks are the content of teachers' teaching in physical education class and the source of students' knowledge.