Seasonality in physical activity and sedentary behavior in young children
Seasonality in physical activity and sedentary behavior in young children
复制标题
DOI：
10.1123/pes.17.1.31
复制
发表时间：
2005-02-01
影响因子：
1.8
通讯作者：
Grant, S
中科院分区：
文献类型：
--
作者：
Fisher, A;Reilly, JJ;Grant, S
本研究旨在探讨是否有一个显着的季节性变化，在客观测量的习惯性体力活动和久坐行为的幼儿。参与者是209名儿童谁参加托儿所在苏格兰格拉斯哥，并采取测量使用单轴加速度计超过3至6天。体力活动和久坐行为之间存在小但显著的季节性关联（ANOVA：两种情况下p <0.001）。总体力活动（加速度计每分钟转数）显着低于春季比夏季，秋季和冬季。我们还发现，在低强度活动和中等强度到高强度活动中花费的时间存在轻微但显著的季节性变化。久坐的时间在夏季比春季和秋季比春季明显减少。目前的研究表明，季节性在我们的环境中对幼儿的体力活动和久坐行为只起有限的作用。在没有明显季节性变化的情况下，这些变量的单一措施应足以用于研究目的。在我们的样本和设置中，有限程度的季节性排除了识别身体活动的主要季节性障碍和机会。
This study examined whether there was a significant seasonal variation in objectively measured habitual physical activity and sedentary behavior in young children. Participants were 209 children who attend nursery in Glasgow, Scotland, and measurements were taken using uniaxial accelerometry over 3 to 6 days. There were small but significant seasonal associations with physical activity and sedentary behavior (ANOVA: p < .001 in both cases). Total physical activity (accelerometry cpm) was significantly lower in spring than in summer, fall, and winter. We also found slight but significant seasonal variations in time spent in low-intensity activity and in moderate-to-vigorous-intensity activity. Sedentary time was significantly lower in summer vs. spring and in fall vs. spring. The present study suggests that seasonality plays only a limited role in physical activity and sedentary behavior in young children in our setting. Single measures of these variables should be adequate for research purposes in the absence of marked seasonal variability. In our sample and setting, the limited degree of seasonality precluded identification of major seasonal barriers to and opportunities for physical activity.