浙江省中学生体育锻炼和睡眠情况调查

目的　了解浙江省中学生体育锻炼和睡眠状况。方法　采用多阶段随机整群抽样的方法，对浙江省30个县（区）221个学校，249个班级的11 638名初一至高三的中学生进行集中调查，采用自我管理式问卷调查方法。结果　在过去的7 d，38.73%的中学生每天20 min以上高强度活动的天数3 d，28.89％的中学生每天30 min以上中等强度活动天数5 d。18.76%的初中生每周上体育课3次，90.87％普通高中学生和71.37％非普通高中学生每周上体育课2次。浙江省中学生平均每天休息睡眠8.51 h，其中初中生8.79 h，普通高中7.91 h，非普通高中8.69h。结论　浙江省中学生体育锻炼时间和强度不足，体育课时不够，学生睡眠时间缺乏，应引起相关部门足够的重视，并采取相应的措施。

Survey on physical exercise and sleeping conditions of high school students in Zhejiang province

Objective This investigation was conducted to provide assessment of physical exercise and sleeping conditions of high schools students in Zhejiang province. Methods The survey was based on self-management questionnaires responded by a multi-staged cluster randomized sample of 11 638 middle school students from 249 classes in 221 schools over 30 counties in the province. Results For the past 7 days, 38.73% of students had physically exercised in a vigorous manner for ≥ 20min each day over a 3-day period; 28.89% of students had exercised in a moderate manner for ≥30min each day over a 5-day period. Meanwhile, 18.76% of junior high school students had participated in physical education （PE） classes more than three times a week, and 90.87% of ordinary high school students and 71.37% of unordinary high school students had attended PE classes more than twice a week. The average sleeping duration of the students was 8.51 hours per day, junior high school students accounting for 8.79 hours, ordinary high school students 7.91 hours, and unordinary high school students 8.69 hours. Conclusion Considerations should be given by relevant departments to deficient intensity and duration of physical activities and inadequate sleeping length in high school students in Zhejiang province.