摘要
目的 探索不同中高强度体力活动(MVPA)时长职校学生10 min/d的高强度体力活动(VPA)、中强度体力活动(MPA)、步行、久坐行为(SB)和睡眠(SLP)之间等时替代与抑郁的关系,以期提供降低抑郁水平的时间分配建议。方法 于2021年12月—2022年1月,采用方便整群抽样法对上海和江苏共14所职校的8 149名一至三年级学生进行问卷调查。以60 min/d时长为界线,将学生分为MVPA达标组和MVPA未达标组,采用等时替代模型进行分析。结果 MVPA达标组占19.81%。在MVPA未达标组,用MPA替代其他所有研究的行为(β值分别为-0.78,-0.90,-0.88,-0.83)、及用SLP替代步行和SB(β值分别为-0.07,-0.05)均与抑郁呈负相关(P值均<0.05),且MPA替代的关联大于SLP替代的关联;在MVPA达标组,用SLP替代VPA、步行和SB均与抑郁呈负相关(β值分别为-0.23,-0.12,-0.10),而用VPA替代MPA,SB和SLP均与抑郁呈正相关(β值分别为0.15,0.13,0.23)(P值均<0.05)。结论 职校学生MVPA水平较低;在MVPA达标时和未达标时,VPA和MPA等时替代的效应不同。应根据不同MVPA时长青少年的特点提供合适的时间分配建议。
Objective To explore the relationship between isotemporal substitution of 10 min/d of vigorous physical activity(VPA),moderate physical activity(MPA),walking,sedentary behavior(SB)and sleep(SLP)and depression among vocational school students with different duration of moderate-to-vigorous physical activity(MVPA),so as to provide time allocation suggestions for reducing depression levels.Methods The convenient cluster sampling method was adopted to conduct a questionnaire survey among 8149 grade one to grade three students in 14 vocational schools in Shanghai and Jiangsu Province from December 2021 to January 2022.According to whether the MVPA reached 60 min/d,the vocational school students were divided into the MVPA standard group and the MVPA non-standard group,and the isotemporal substitution model was used for analysis.Results About 19.81%of students were in the MVPA standard group.In the MVPA non-standard group,substituting MPA for all other studied behaviors and substituting SLP for walking and SB were negatively correlated with depression(β=-0.78,-0.90,-0.88,-0.83;-0.07,-0.05,P<0.05),and the association of MPA substitution was much greater than that of SLP substitution.In the MVPA standard group,replacing VPA,walking and SB with SLP were all negatively associated with depression(β=-0.23,-0.12,-0.10),whereas replacing MPA,SB and SLP with VPA was all positively associated with depression(β=0.15,0.13,0.23)(P<0.05).Conclusion The MVPA level of vocational school students is low.The effects of isotemporal substitution for VPA and MPA are different when MVPA duration is up to standard and when MVPA duration is not up to standard.Appropriate time allocation suggestions should be provided based on the characteristics of adolescents with different MVPA durations.
作者
汤表倩
陈勃昊
李艺扬
刘汗青
许曙青
王书梅
TANG Biaoqian;CHEN Bohao;LI Yiyang;LIU Hanqing;XU Shuqing;WANG Shumei(School of Public Health,Fudan University,Shanghai(200032),China;不详)
出处
《中国学校卫生》
CAS
北大核心
2023年第10期1537-1541,共5页
Chinese Journal of School Health
基金
2021年江苏省社会科学基金课题(21GLD015)。
关键词
运动活动
行为
等时替代
抑郁
精神卫生
学生
Motor activity
Behavior
Isotemporal substitution
Depression
Mental health
Students
