School of Psychology, Centre for Studies of Psychological Applications, Guangdong Key Laboratory of Mental Health and Cognitive Science, Ministry of Education Key Laboratory of Brain Cognition and Educational Science, South China Normal University, Guangzhou, China.
Moral Education Research Office, Huidong County Education Bureau, Huizhou, China.
J Psychosom Res. 2023 Jul;170:111352. doi: 10.1016/j.jpsychores.2023.111352. Epub 2023 May 2.
This study aimed to examine the cross-sectional and longitudinal associations between meeting the 24-Hour Movement Guidelines (recommendations for the optimal amount of moderate-to-vigorous physical activity, screen time, and sleep duration per day) and mental health problems among Chinese adolescents.
A two-wave longitudinal survey was conducted in Huizhou, Guangdong province. A total of 906 junior high school students were recruited in the six-month follow-up survey. Moderate-to-vigorous physical activity, screen time, sleep duration, anxiety symptoms (GAD-7 score), and depressive symptoms (PHQ-9 score) were measured using a self-administered questionnaire. At baseline, participants were classified as meeting: 1) no recommendation, 2) one recommendation, 3) two recommendations, or 4) all three recommendations.
Overall, the proportions of adolescents meeting moderate-to-vigorous physical activity, screen time, and sleep recommendations at T were 33.3%, 68.2%, and 64.7%, respectively. Cross-sectionally, the severity of anxiety and depressive symptoms at T significantly decreased as the number of recommendations met increased (adjusted regression coefficients [95% CI] for three recommendations met versus none: -2.80 [-4.05, -1.55] and - 3.42 [-4.85, -1.99], respectively). Longitudinally, adolescents who met three recommendations at T displayed lower anxiety and depressive symptoms six months later than those who did not (adjusted regression coefficients [95% CI]: -1.00 [-1.98, -0.02] and - 1.43 [-2.53, -0.32], respectively). Furthermore, meeting three recommendations was associated with the alleviation of depressive symptoms (adjusted OR [95% CI]: 0.39 [0.17, 0.90]).
Promoting adolescents to adhere to the 24-Hour Movement Guidelines could be considered an intervention target for mental health problems at a population level.
本研究旨在探讨中国青少年满足 24 小时运动指南（每日适量至剧烈体力活动、屏幕时间和睡眠时间的最佳推荐量）与心理健康问题之间的横断面和纵向关联。
在广东省惠州市进行了一项两波纵向调查。在六个月的随访调查中，共招募了 906 名初中生。使用自我管理问卷测量中度至剧烈体力活动、屏幕时间、睡眠时间、焦虑症状（GAD-7 评分）和抑郁症状（PHQ-9 评分）。在基线时，参与者被分为以下几类：1）不符合任何建议，2）符合一项建议，3）符合两项建议，或 4）符合三项建议。
总体而言，青少年在 T 时符合中度至剧烈体力活动、屏幕时间和睡眠建议的比例分别为 33.3%、68.2%和 64.7%。横断面研究显示，随着符合建议数量的增加，T 时的焦虑和抑郁症状严重程度显著降低（符合三项建议与不符合任何建议相比：-2.80[-4.05，-1.55]和-3.42[-4.85，-1.99]）。纵向研究显示，T 时符合三项建议的青少年在六个月后焦虑和抑郁症状较低，而不符合任何建议的青少年则较高（调整后的回归系数[95%CI]：-1.00[-1.98，-0.02]和-1.43[-2.53，-0.32]）。此外，符合三项建议与抑郁症状的缓解相关（调整后的 OR [95%CI]：0.39[0.17，0.90]）。
促进青少年遵守 24 小时运动指南可以被视为针对人群心理健康问题的干预目标。
