Fan Xiang, Cao Zhen-Bo
Department of Physical Education, Shanghai Jiao Tong University, Shanghai 200240, China.
Shanghai Research Center for Physical Fitness and Health of Children and Adolescents, Shanghai University of Sport, Shanghai 200438, China.
J Sport Health Sci. 2017 Dec;6(4):388-394. doi: 10.1016/j.jshs.2017.09.006. Epub 2017 Sep 19.
This study was to present national estimates of participating in moderate-to-vigorous physical activity (MVPA) and adherence to the recommendations of 60 min/day of MVPA among Chinese school-aged children and to assess demographic differences in MVPA.
Cross-sectional analyses of data from the 2016 Physical Activity and Fitness in China-The Youth Study. Participants were 90,712 primary, junior middle, and junior high school children (boy: 47%; girl: 53%), recruited from 1204 rural and urban schools across 32 administrative provinces and regions in the Mainland of China. Main outcomes were (a) average MVPA minutes per day in the previous 7 days by self-reports and (b) percentage meeting MVPA recommendations.
Average MVPA time was 45.4 min/day, with boys having more MVPA (47.2 min/day) than girls (43.7 min/day) overall and across the 3 school grade categories. About 30% of participants met MVPA recommendations, with a higher percentage of boys (32%) than girls (28%) overall and across the 3 grades categories. Urban school children outperformed rural children in terms of MVPA time. Overall, boys were more likely to meet MVPA recommendations (adjusted odds ratio (aOR) = 1.19, 95% confidence interval (CI): 1.16-1.22) compared with girls; children in higher grades (junior middle (aOR = 0.92, 95%CI: 0.87-0.98) and junior high (aOR = 0.59, 95%CI: 0.53-0.66)) were less likely to meet recommendations compared with primary school children. The odds of meeting recommendations did not differ between urban and rural children ( = 0.07), but urban boys were found to be more likely to meet recommendations compared with rural boys (aOR = 1.14, 95%CI: 1.06-1.19).
Overall, the average MVPA minutes per day among Chinese school-aged children is low, and less than one-third of them meet MVPA recommendations. These results were most evident among junior middle and junior high school children and those living rural areas.
本研究旨在呈现中国学龄儿童参与中度至剧烈身体活动（MVPA）的全国估计数据以及遵守每天60分钟MVPA建议的情况，并评估MVPA在人口统计学方面的差异。
对2016年“中国青少年身体活动与健康研究”的数据进行横断面分析。参与者为来自中国大陆32个行政省和地区的1204所城乡学校的90712名小学、初中和高中学生（男孩占47%；女孩占53%）。主要结果为：（a）通过自我报告得出的前7天每天平均MVPA分钟数；（b）达到MVPA建议的百分比。
平均MVPA时间为每天45.4分钟，总体上以及在3个学校年级类别中，男孩的MVPA时间（每天47.2分钟）均多于女孩（每天43.7分钟）。约30%的参与者达到MVPA建议，总体上以及在3个年级类别中，男孩达到建议的百分比（32%）高于女孩（28%）。城市学龄儿童在MVPA时间方面表现优于农村儿童。总体而言，与女孩相比，男孩更有可能达到MVPA建议（调整后的优势比（aOR）=1.19，95%置信区间（CI）：1.16 - 1.22）；与小学生相比，高年级（初中（aOR = 0.92，95%CI：0.87 - 0.98）和高中（aOR = 0.59，95%CI：0.53 - 0.66））学生达到建议的可能性较小。城乡儿童达到建议的几率没有差异（=0.07），但发现城市男孩比农村男孩更有可能达到建议（aOR = 1.14，95%CI：1.06 - 1.19）。
总体而言，中国学龄儿童每天的平均MVPA分钟数较低，且不到三分之一的儿童达到MVPA建议。这些结果在初中和高中学生以及农村地区的学生中最为明显。
