Gender differences in physical activity and sedentary behavior of Japanese primary school children during school cleaning time, morning recess and lunch recess
Gender differences in physical activity and sedentary behavior of Japanese primary school children during school cleaning time, morning recess and lunch recess
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DOI：
10.1186/s12889-019-7256-5
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发表时间：
2019-07-23
影响因子：
4.5
通讯作者：
Tanaka, Shigeho
中科院分区：
文献类型：
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作者：
Tanaka, Chiaki;Tanaka, Maki;Tanaka, Shigeho
背景学校环境为儿童从事促进健康的体育活动(PA)提供了重要的机会。日本的孩子们每天都会打扫学校，并有课间休息时间。方法采用三轴加速度计对14所公立小学6~12岁的230名男生和252名女生的PA和静坐行为(SB)进行了连续7天的测试。评估SB分钟和中等强度PA(MVPA)在学校清洁时间(15分钟/天：14所学校的58%或20分钟/天)、上午休息时间(15分钟/天：6%或20分钟/天)或午餐休息时间(15分钟/天：29%、20分钟/天：47%或25分钟/天)中的百分比。采用单因素方差分析和t检验，分析学校清洁时间、上午休息时间和午休时间以及性别间的%PAS和%SB的差异。结果在一个上学日中，男生每天在学校清洁时间、上午休息时间和午餐休息时间的MVPA所占比例为19.46.8%(15.2+/-5.3min/d)，女生为16.9+/-5.8%(10.5+/-4.3min/d)。男生清晨、午休和清晨休息时的MVPA比例和SB比例显著高于学校清洁时间(P
BackgroundThe school environment provides crucial opportunities for children to engage in health-promoting physical activity (PA). Japanese children clean their schools and have recess time every school day. The primary aim of the study is to describe the levels of physical activity during school cleaning and recess time while comparing it between genders.MethodsPA and sedentary behavior (SB) of 230 boys and 252 girls aged 6-12years-old from 14 public primary schools were assessed for 7 consecutive days with a triaxial accelerometer. Minutes of SB, and moderate-to-vigorous PA (MVPA) as a percentage in each of school cleaning time (15min/day: 58% of the 14 schools or 20min/day), morning recess time (15min/day: 6% or 20min/day) or lunch recess time (15min/day: 29%, 20min/day: 47% or 25min/day) were evaluated. A one-way analysis of variance or Student's t test was used to examine differences in %PAs and %SB between school cleaning time and morning and lunch recess time, and between genders.ResultsIn a school day, the percentage of total daily MVPA during school cleaning time, morning recess and lunch recess time was 19.46.8% (15.2 +/- 5.3min/day) for boys and 16.9 +/- 5.8% (10.5 +/- 4.3min/day) for girls. For boys, the proportions of MVPA in morning and lunch recesses and SB during the morning recess were significantly higher than during school cleaning time (p