Public Health Agency of Canada, Ottawa, Ontario.
University of Alberta, Edmonton, Alberta.
Health Rep. 2017 Oct 18;28(10):3-7.
The , provide specific recommendations on the amount of time over a typical 24-hour day that children and youth aged 5 to 17 should spend in moderate-to-vigorous physical activity (at least 60 minutes), recreational screen time (no more than 2 hours), and sleep (9 to 11 hours for 5- to 13-year-olds; 8 to 10 hours for 14- to 17-year-olds).
Based on combined results of cycles 2 (2009-to-2011) and 3 (2012-to-2013) of the Canadian Health Measures Survey, this analysis examines average daily moderate-to-vigorous physical activity, screen time and sleep duration of 5- to 11-year-olds and 12- to 17-year-olds, and the percentages meeting the recommendations. Findings are presented overall and by age group and sex. Differences in average daily times between groups were tested for statistical significance, as weredifferences between groups in the percentages meeting each recommendation and combination of recommendations.
Overall, 17.5% of children and youth met the specific time recommendations. Higher percentages of children than youth (29.6% versus 5.5%) and boys than girls (22.9% versus 11.8%) met the recommendations. About a third (36.3%) met two of the three recommendations.
Recommendations for moderate-to-vigorous physical activity, sedentary behaviour, and sleep have higher levels of adherence among children than youth.
该指南就儿童和青少年 5 至 17 岁在典型的 24 小时内，应花费多少时间进行中等到剧烈的身体活动（至少 60 分钟）、娱乐性屏幕时间（不超过 2 小时）和睡眠（5 至 13 岁儿童 9 至 11 小时；14 至 17 岁儿童 8 至 10 小时）提出了具体建议。
基于加拿大健康衡量调查第 2 周期（2009 年至 2011 年）和第 3 周期（2012 年至 2013 年）的综合结果，本分析检查了 5 至 11 岁和 12 至 17 岁儿童青少年的平均日常中等到剧烈身体活动、屏幕时间和睡眠时间，以及符合建议的百分比。结果总体呈现，并按年龄组和性别呈现。对组间平均每日时间差异进行了统计学意义检验，对符合每项建议和组合建议的百分比差异也进行了检验。
总体而言，有 17.5%的儿童和青少年符合特定时间建议。符合建议的儿童比例高于青少年（29.6%比 5.5%），男孩高于女孩（22.9%比 11.8%）。约三分之一（36.3%）符合三项建议中的两项。
与青少年相比，儿童在中等到剧烈的身体活动、久坐行为和睡眠方面的建议有更高的遵循率。
