Health Analysis Division, Statistics Canada, Ottawa, Ontario.
Faculty of Physical Education and Recreation, University of Alberta, Edmonton, Alberta.
Health Rep. 2017 Oct 18;28(10):8-16.
This study describes and compares the percentages of Canadian children and youth who adhere to different operational definitions of the moderate-to-vigorous physical activity (MVPA) recommendation of 60 minutes per day.
Data for 6- to 17-year-olds (n = 5,608) were collected from 2007 through 2015 as part of the Canadian Health Measures Survey. MVPA was measured using the Actical accelerometer. The MVPA recommendation was operationalized as accumulating 60 minutes of MVPA every day, on most days, and on average.
Data from the most recent cycle of the Canadian Health Measures Survey indicate that 7% of children and youth accumulated at least 60 minutes of MVPA on at least 6 out of 7 days, and 33% achieved a weekly average of at least 60 minutes per day. Boys accumulated more MVPA than did girls, and 6- to 11-year-olds accumulated more MVPA than did 12- to 17-year-olds. Regardless of how adherence to the recommendation is operationalized, MVPA levels among Canadian children and youth did not change over the 9-year period from 2007 to 2015.
The majority of Canadian children do not meet the physical activity recommendation, regardless of the operational definition used. However, the discrepancies between results based on different interpretations of the 60-minutes-per-day recommendation highlight the importance of explicitly reporting how recommendations are operationalized to avoid misinterpreting trends and comparisons.
本研究描述并比较了加拿大儿童和青少年遵循不同中高强度身体活动(MVPA)推荐量 60 分钟/天的操作定义的百分比。
2007 年至 2015 年期间,通过加拿大健康测量调查收集了 6 至 17 岁儿童(n=5608)的数据。使用 Actical 加速度计测量 MVPA。MVPA 推荐量的操作定义为每天、大多数天都积累 60 分钟的 MVPA,且平均每天达到 60 分钟。
加拿大健康测量调查最近一轮的数据表明,7%的儿童和青少年至少在 7 天中的 6 天中积累了至少 60 分钟的 MVPA,33%的儿童和青少年达到了每周至少 60 分钟的平均水平。男孩比女孩积累了更多的 MVPA,6 至 11 岁儿童比 12 至 17 岁儿童积累了更多的 MVPA。无论如何操作定义,2007 年至 2015 年 9 年间,加拿大儿童和青少年的 MVPA 水平并未发生变化。
大多数加拿大儿童不符合身体活动推荐量,无论使用哪种操作定义。然而,基于对 60 分钟/天推荐量的不同解释得出的结果之间的差异,突显了明确报告推荐量的操作定义以避免误解趋势和比较的重要性。