Seasonal variation in physical activity and sedentary time in different European regions. The HELENA study
Seasonal variation in physical activity and sedentary time in different European regions. The HELENA study
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DOI：
10.1080/02640414.2013.803595
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发表时间：
2013-12-01
影响因子：
3.4
通讯作者：
Sjostrom, Michael
中科院分区：
文献类型：
--
作者：
Gracia-Marco, Luis;Ortega, Francisco B.;Sjostrom, Michael
本报告的目的是(1)研究欧洲青少年的季节性与身体活动（PA）和久坐时间之间的联系，(2)调查这种联系是否受到地理位置（欧洲中北部与南部）的影响，这意味着或多或少的极端天气和白天时间。本研究收集了2173名青少年（1175名女性，12.5-17.5岁）的PA、久坐时间和季节性的有效数据。身体活动和久坐时间由加速度计测量。ANCOVA分析了不同季节PA和久坐时间的差异。结果显示，冬季女生中~剧烈PA （MVPA）和平均PA水平较春季低，久坐活动时间较春季长（P< 0.05）。分层分析显示，来自中欧和北欧的欧洲女孩的PA和久坐时间在冬季和春季之间存在差异（久坐时间P< 0.05）。在男孩中，PA和久坐时间没有季节性差异。综上所述，与春季相比，冬季与欧洲青春期女孩的MVPA时间较短、平均PA较低、久坐活动时间较长有关。这些差异似乎主要发生在中欧和北欧。
This report aims (1) to examine the association between seasonality and physical activity (PA) and sedentary time in European adolescents and (2) to investigate whether this association was influenced by geographical location (Central-North versus South of Europe), which implies more or less extreme weather and daylight hours. Valid data on PA, sedentary time and seasonality were obtained in 2173 adolescents (1175 females; 12.5-17.5 years) included in this study. Physical activity and sedentary time were measured by accelerometers. ANCOVA was conducted to analyse the differences in PA and sedentary time across seasons. Results showed that girls had lower levels of moderate to vigorous PA (MVPA) and average PA, and spent more time in sedentary activities in winter compared with spring (all P< 0.05). Stratified analyses showed differences in PA and sedentary time between winter and spring in European girls from Central-North of Europe (P< 0.05 for sedentary time). There were no differences between PA and sedentary time across seasonality in boys. In conclusion, winter is related with less time spent in MVPA, lower average PA and higher time spent in sedentary activities in European adolescent girls, compared with spring. These differences seem to mainly occur in Central-North Europe.