香港青少年对 24 小时身体活动指南的遵守情况：与体重状况的关联。

Compliance With 24-Hour Movement Guidelines in Hong Kong Adolescents: Associations With Weight Status.

出版信息

J Phys Act Health. 2020 Mar 1;17(3):287-292. doi: 10.1123/jpah.2019-0230.

DOI:10.1123/jpah.2019-0230

PMID:31945741

Abstract

BACKGROUND

This study examined the compliance with the 24-Hour Movement Guidelines among Hong Kong adolescents and its associations with body mass index (BMI).

METHODS

A total of 1039 adolescents (11-18 y) wore the activPAL™ for 24 hours for 7 consecutive days to assess physical activity (PA) and sleep duration. Screen time was measured using the Children's Leisure Activities Study Survey (Chinese version). Linear mixed models were performed for analysis.

RESULTS

The analytic sample consisted of 692 adolescents (53% girls). Only 1.0% of the adolescents met all of the recommendations. The proportions of adolescents who met the recommendation for PA, screen time, and sleep were 9.1%, 31.2%, and 38.6%, respectively. Adolescent boys who did not meet the PA recommendation (β = 3.36; 95% CI, 1.04 to 5.68; P = .001) and those who did not meet the combination of PA and sleep recommendations (β = 2.10, 95% CI, 0.64 to 3.56; P = .01) had a higher body mass index than those who met the respective recommendations.

CONCLUSIONS

Compliance with the 24-Hour Movement Guidelines was alarmingly low among Hong Kong adolescents. Meeting the PA recommendation or the combination of PA and sleep recommendations was associated with a healthier body weight in boys.

摘要

背景

本研究考察了香港青少年对 24 小时运动指南的遵守情况及其与身体质量指数（BMI）的关系。

方法

共有 1039 名（11-18 岁）青少年连续 7 天佩戴 activPAL™ 24 小时，以评估体力活动（PA）和睡眠时间。屏幕时间使用儿童休闲活动研究调查（中文版本）进行测量。采用线性混合模型进行分析。

结果

分析样本包括 692 名青少年（53%为女孩）。只有 1.0%的青少年完全符合所有建议。符合 PA、屏幕时间和睡眠建议的青少年比例分别为 9.1%、31.2%和 38.6%。不符合 PA 建议的青少年男孩（β=3.36；95%置信区间，1.04 至 5.68；P=.001）和不符合 PA 和睡眠建议组合的青少年男孩（β=2.10，95%置信区间，0.64 至 3.56；P=.01）的 BMI 高于符合相应建议的青少年。