现有研究表明，从参与状况来看，大部分青少年都有参与一定量的体育锻炼。9

Existing research shows that from the perspective of participation, most young people participate in a certain amount of physical exercise. 99.3% of 6 to 19-year-old students in school participate in 1 or more physical exercises a week, but as they age, the frequency decreases [3]. A review of existing studies found that college students are worse than elementary and middle school students in sports participation. They have a lot of free time, but the proportion of participating in sports activities in their free time is not high [4]. Some college students who can actively participate in sports activities have difficulty in achieving good exercise effects in terms of frequency and intensity [5], and insufficient use of social sports resources [6]. The number of senior college students participating in extracurricular sports activities is small, and they mainly exercise on campus, mainly 1-2 times a week

Existing research shows that, in terms of participation, most adolescents are involved in a certain amount of physical activity. 99.3% of school students aged 6 to 19 have 1 or more physical exercise per week, but the number decreases as they age. The study has found that college students are worse off than primary and secondary school students in sports participation. They have more spare time, but the proportion of people who participate in sports activities in their spare time is not high. Some college students who can take the initiative to participate in sports activities are difficult to achieve good exercise effect in frequency and intensity, and the use of social sports resources is insufficient. The number of senior college students involved in extracurricular sports activities is small, mainly in the campus exercise, to 1 to 2 times a week.

The existing research shows that, from the perspective of participation, most teenagers have participated in a certain amount of physical exercise. 99.3% of the students aged 6-19 took part in physical exercise once or more every week, but with the increase of age, the frequency decreased. Combing the existing research found that college students in sports participation than primary and secondary school students are worse. They have more leisure time, but the proportion of participating in sports activities in their spare time is not high. Some college students who can actively participate in sports activities are difficult to achieve good exercise effect in frequency and intensity, and make insufficient use of social sports resources. The number of senior college students to participate in extracurricular sports activities is small, mainly in the campus exercise, mainly once or twice a week<br>