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首页> 外文期刊>Preventive Medicine: An International Journal Devoted to Practice and Theory >Day-to-day and seasonal variability of physical activity during school recess.
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Day-to-day and seasonal variability of physical activity during school recess.

机译：学校放假期间体育活动的日常和季节性变化。

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OBJECTIVE: Children's physical activity levels are difficult to establish on a day-to-day or season-to-season basis. Most studies have attempted to measure reliability in habitual settings. This study investigated the variability in children's physical activity during recess. METHODS: Fifteen boys and 19 girls (aged 6 to 11 years) from 2 schools in North West England wore heart rate monitors for 5 consecutive days in summer and winter terms to assess day-to-day and seasonal variability during school recess. Data were collected in 2004. Repeated measures ANOVA's and intraclass correlations (ICC) analysed the day-to-day and seasonal variability in children's moderate-to-vigorous (MVPA) and vigorous physical activity (VPA) data. RESULTS: There were no significant differences in children's MVPA and VPA across days and seasons. ICCs for MVPA across 2 days ranged from 0.75 to 0.85 in summer, and from 0.53 to 0.81 in winter. Three-day MVPA ICCs were 0.83 in summer and 0.71 in winter. CONCLUSIONS: The results revealed no significant variation in children's recess physical activity levels across days and seasons. Whilst children were free to choose their recess activities in school, the results suggested that children were relatively consistent in their choices, limiting physical activity variability.
机译：目的：很难每天或季节性地确定儿童的体育活动水平。大多数研究都试图测量习惯环境下的可靠性。这项研究调查了儿童在休息期间身体活动的变异性。方法：英格兰西北部2所学校的15名男孩和19名女孩（年龄6至1​​1岁）在夏季和冬季期间连续5天戴着心率监测器，以评估学校放假期间的日常和季节性变化。 2004年收集了数据。重复测量ANOVA和组内相关性（ICC）分析了儿童中度至剧烈（MVPA）和剧烈运动（VPA）数据的每日和季节性变化。结果：儿童的MVPA和VPA在不同天数和季节之间均无显着差异。 MVPA在两天内的ICC在夏季范围从0.75到0.85，在冬季范围从0.53到0.81。三天MVPA ICC在夏季为0.83，在冬季为0.71。结论：结果表明，儿童的隐性体育锻炼水平在不同天数和不同季节之间均无显着变化。尽管孩子们可以在学校自由选择他们的课余活动，但结果表明孩子们的选择相对一致，从而限制了体育锻炼的可变性。

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