Pennington Biomedical Research Center, Baton Rouge, LA,USA.
J Phys Act Health. 2023 Feb 1;20(3):250-257. doi: 10.1123/jpah.2022-0345. Print 2023 Mar 1.
More moderate to vigorous physical activity (MVPA) and less time in sedentary behavior (SB) may protect against poor mental health in adolescence. Depressive symptomatology may also influence adolescents' own MVPA and SB. The aim of this study was to examine the bidirectional relationship between adolescent MVPA, SB, and depressive symptomatology using a longitudinal approach.
Adolescents (10-16 y) were recruited for a prospective observational cohort. Depressive symptomatology was measured using the Short Mood and Feelings Questionnaire. Accelerometry was used to measure MVPA and SB. Adolescents were classified by meeting the MVPA guideline (≥60 min/d) and quartiles of SB time, with the lowest amount of time in SB compared to others. Bidirectional associations between MVPA, SB, and depressive symptomatology were assessed using mixed-effects regression models.
At baseline, adolescents (n = 205) were 12.5 (2.0) years, 54.6% women, 59.1% White, and 34.6% African American. In unadjusted models, adolescents with less baseline time in SB had lower follow-up Short Mood and Feelings Questionnaire scores, and fewer were classified as depressed at follow-up compared to others. After adjustment, adolescents with less baseline time in SB had lower depressive symptomatology at follow-up.
Limiting time spent in SB in adolescence may improve future mental health.
更多的中等到剧烈的身体活动（MVPA）和更少的久坐行为（SB）可能会预防青少年时期的心理健康状况不佳。抑郁症状也可能影响青少年自身的 MVPA 和 SB。本研究的目的是使用纵向方法检查青少年 MVPA、SB 和抑郁症状之间的双向关系。
招募了青少年（10-16 岁）进行前瞻性观察队列研究。使用短期情绪和感觉问卷测量抑郁症状。加速度计用于测量 MVPA 和 SB。青少年通过满足 MVPA 指南（≥60 分钟/天）和 SB 时间的四分位数来分类，与其他人相比，SB 的时间最短。使用混合效应回归模型评估 MVPA、SB 和抑郁症状之间的双向关联。
在基线时，青少年（n=205）年龄为 12.5（2.0）岁，54.6%为女性，59.1%为白人，34.6%为非裔美国人。在未调整的模型中，基线时 SB 时间较少的青少年在随访时的短期情绪和感觉问卷评分较低，与其他人相比，随访时被诊断为抑郁的人数较少。调整后，基线时 SB 时间较少的青少年在随访时的抑郁症状较轻。
在青少年时期限制 SB 的时间可能会改善未来的心理健康状况。
