School of Kinesiology, Shanghai University of Sport, Shanghai, China.
Health Promotion Center, Zhejiang Provincial People's Hospital, Hangzhou, China.
BMJ Open. 2019 Apr 25;9(4):e024090. doi: 10.1136/bmjopen-2018-024090.
Engaging in physical activity (PA) plays an important role in promoting physical and mental health, but the PA data for Chinese preschool children are lacking. This study aims to objectively assess the PA levels of preschool children in Shanghai, China and to evaluate their PA levels relative to age-specific recommendations.
DESIGN, SETTING AND PARTICIPANTS: A cross-sectional study was conducted among preschool children in Shanghai, city of China. There were a total of 303 preschool children (boys, 174; girls, 129) recruited from eight kindergarten classes in the Yangpu and Baoshan Districts of Shanghai.
Daily PA was assessed using ActiGraph GT3X accelerometers for seven consecutive days. Children were required to have data from at least 2 weekdays and 1 weekend day, with a minimum daily wear time of 480 min to be included in the analysis.
Preschool children in Shanghai accumulated, on average, 70.9 min of moderate-to-vigorous PA (MVPA) and 168.0 min of total PA (TPA) per day (d). Boys engaged in more MVPA and TPA than girls (72.8 min/day vs 68.3 min/day and 171.9 min/day vs 162.9 min/day, respectively). Overall, 72.9% of the participants met the age-specific recommendations of MVPA, while 35.3% met TPA recommendations.
Findings of this study warn of the insufficiency of PA in Shanghai preschool children, suggesting there is substantial room to improve their PA.
ChiCTR-OOC-15007439; Results.
身体活动（PA）对促进身心健康起着重要作用，但中国学龄前儿童的 PA 数据却很缺乏。本研究旨在客观评估中国上海学龄前儿童的 PA 水平，并评估其 PA 水平相对于特定年龄的建议。
设计、地点和参与者：这是一项在中国上海进行的学龄前儿童的横断面研究。共有 303 名学龄前儿童（男孩 174 名，女孩 129 名）来自上海杨浦区和宝山区的 8 个幼儿园班级。
使用 ActiGraph GT3X 加速度计连续 7 天评估每日 PA。儿童至少需要有 2 个工作日和 1 个周末日的数据，并且每天佩戴时间至少 480 分钟才可纳入分析。
上海学龄前儿童平均每天积累 70.9 分钟的中等到剧烈强度的 PA（MVPA）和 168.0 分钟的总 PA（TPA）（d）。男孩比女孩进行更多的 MVPA 和 TPA（72.8 分钟/天比 68.3 分钟/天和 171.9 分钟/天比 162.9 分钟/天）。总体而言，72.9%的参与者符合特定年龄的 MVPA 建议，而 35.3%符合 TPA 建议。
本研究的结果警示了上海学龄前儿童 PA 不足的问题，表明有很大的空间可以提高他们的 PA。
ChiCTR-OOC-15007439；结果。
