Department of Education, UiT The Arctic University of Norway, Tromsø, Norway.
School of Sport Sciences, UiT The Arctic University of Norway, Tromsø, Norway.
Int J Circumpolar Health. 2021 Dec;80(1):2004688. doi: 10.1080/22423982.2021.2004688.
The aim of this study was to measure seasonal variations in physical activity (PA) during Polar Nights (PN) and Polar Days (PD) among elementary school children in the Arctic regions of Norway. One hundred and seventy-eight schoolchildren from 1, 3, 5and 7 grade participated in the study. Physical activity was measured for seven consecutive days with an ActiGraph GT3X-BT accelerometer and is expressed as total PA incounts per minute (cpm) and moderate-to-vigorous activity (MVPA) (min∙day). During PN, 51% of boys and 33% of girls met the PA recommendations, whereas 36% of boys and 34% of girls met the recommendations during PD. Time spent doing MVPA did not differ between the two seasons (all ≥ 0.073). Overall, the children accumulated 613 ±154 cpm during PN, which was lower than during PD 704 ± 269 cpm, < 0.001). A larger proportion of boys than girls met the PA recommendations during PN compared with PD. Our findings did not show any clear seasonal variation for MVPA or total PA among children,except for some differences within sexes in different grades. This study indicates that interventions aimed at increasing PA should be implemented throughout the year in the Arctic regions. .
本研究旨在测量挪威北极地区小学生在极夜和极昼期间的身体活动（PA）季节性变化。178 名 1 、 3 、 5 和 7 年级的学生参加了这项研究。使用 ActiGraph GT3X-BT 加速度计连续 7 天测量身体活动，以每分钟的总活动计数（cpm）和中等到剧烈活动（MVPA）（min∙day）表示。在极夜期间，51%的男孩和 33%的女孩符合 PA 推荐标准，而在极昼期间，36%的男孩和 34%的女孩符合推荐标准。两个季节之间的 MVPA 时间没有差异（均 ≥ 0.073）。总体而言，孩子们在极夜期间积累了 613 ± 154 cpm，低于极昼期间的 704 ± 269 cpm，< 0.001）。与极昼相比，在极夜期间，更多的男孩而不是女孩符合 PA 推荐标准。本研究表明，在北极地区，应该全年实施旨在增加 PA 的干预措施。
