Barth Vedøy Ingeborg, Skulberg Knut Ragnvald, Anderssen Sigmund Alfred, Tjomsland Hege Eikeland, Thurston Miranda
Inland Norway University of Applied Sciences, Postboks 400, 2418 Elverum, Norway.
The Norwegian School of Sport Sciences, Postboks 4014 Ullevål stadion, 0806 Oslo, Norway.
Prev Med Rep. 2021 Jan 9;21:101312. doi: 10.1016/j.pmedr.2021.101312. eCollection 2021 Mar.
Regular physical activity (PA) has been associated with academic achievement, but the evidence is mainly based on cross-sectional research and self-reported measures of PA. The purpose of the current study was to explore the longitudinal relationship between objectively measured PA and academic achievement among a cohort of adolescents in Norway between 2016 and 2018. As a secondary aim, an indirect relationship via waist circumference (WC) and sleep duration was assessed. Data from 599 adolescents (54.4% female, mean age at baseline ± SD 13.3 ± 0.3 years) were collected annually during their three years at lower secondary school. PA was measured objectively using accelerometry. Academic achievement was assessed using grade point average (GPA) from school records. Linear regression analysis was performed to explore associations between longitudinal changes in measures of PA (Total PA and moderate-to-vigorous PA [MVPA]) and academic achievement directly or via mediators. Results showed no significant associations between Total PA or MVPA and academic achievement, either in the main analyses or through mediation of WC and sleep duration. The results contribute to a growing evidence base of studies showing no association between objectively measured PA and academic achievement among adolescents.
经常进行体育活动（PA）与学业成绩相关，但证据主要基于横断面研究和自我报告的体育活动测量方法。本研究的目的是探讨2016年至2018年挪威一群青少年中客观测量的体育活动与学业成绩之间的纵向关系。作为次要目标，评估了通过腰围（WC）和睡眠时间的间接关系。在初中三年期间，每年收集599名青少年（54.4%为女性，基线平均年龄±标准差13.3±0.3岁）的数据。使用加速度计客观测量体育活动。使用学校记录中的平均绩点（GPA）评估学业成绩。进行线性回归分析，以探讨体育活动测量指标（总体育活动和中度至剧烈体育活动[MVPA]）的纵向变化与学业成绩之间直接或通过中介因素的关联。结果显示，在主要分析中，或通过腰围和睡眠时间的中介作用，总体育活动或中度至剧烈体育活动与学业成绩之间均无显著关联。这些结果为越来越多的研究证据提供了补充，这些研究表明，客观测量的体育活动与青少年的学业成绩之间没有关联。
