Ingram School of Nursing, McGill University, Montreal, Quebec, Canada.
Human Kinetics Department, St Francis Xavier University, Antigonish, Nova Scotia, Canada.
Pediatr Obes. 2021 Apr;16(4):e12730. doi: 10.1111/ijpo.12730. Epub 2020 Sep 30.
The 24-hour movement guidelines provide recommendations for physical activity, screen time and sleep duration for children.
Describe adherence to the guidelines and their cross-sectional and longitudinal associations with adiposity from childhood to adolescence.
Data are from the QUALITY Cohort. Children were followed at 8 to 10 years (childhood; n = 630), 10 to 12 years (early adolescence; n = 564) and 15 to 17 years (adolescence; n = 377). Physical activity, screen time, and sleep duration were measured by accelerometry and questionnaires. Body mass index z-scores (zBMI), waist circumference, waist-to-height ratio and percent body fat were based on clinical measurements. Multiple linear regressions estimated associations.
In childhood, early adolescence and adolescence, 14%, 6%, and 0% of participants met the 24-hour movement guidelines, respectively. Meeting fewer guideline components was cross-sectionally associated with higher adiposity at each visit. Meeting fewer guideline components in childhood was longitudinally associated with higher adiposity at later visits. For example, those meeting none of the guideline components (vs all) in childhood had a 1.66 SD (95% CI: 0.42, 2.89) higher zBMI in early adolescence.
Few participants met the guidelines. Not meeting the guidelines in childhood is associated with higher adiposity 2 and 7 years later. Interventions are needed to increase adherence to the 24-hour movement guidelines across childhood and adolescence.
24 小时运动指南为儿童的身体活动、屏幕时间和睡眠时间提供了建议。
描述对指南的遵守情况，以及从儿童期到青春期，其与肥胖的横断面和纵向关联。
数据来自 QUALITY 队列。在 8 至 10 岁（儿童期；n=630）、10 至 12 岁（青少年早期；n=564）和 15 至 17 岁（青春期；n=377）时对儿童进行随访。通过加速度计和问卷调查测量身体活动、屏幕时间和睡眠时间。体重指数 z 分数（zBMI）、腰围、腰高比和体脂百分比基于临床测量。使用多元线性回归估计关联。
在儿童期、青少年早期和青春期，分别有 14%、6%和 0%的参与者符合 24 小时运动指南。在每个访问中，符合较少指南组成部分与肥胖呈横断面相关。在儿童期符合较少的指南组成部分与后期访问的肥胖呈纵向相关。例如，在儿童期不符合任何指南组成部分（与所有组成部分相比）的人在青少年早期的 zBMI 高出 1.66 个标准差（95%CI：0.42，2.89）。
很少有参与者符合指南。在儿童期不符合指南与 2 年后和 7 年后的肥胖有关。需要干预措施来增加儿童期和青春期对 24 小时运动指南的遵守。
