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标题：Effect of unstructured 15-minute active recess on children’s daily physical activity
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作者：TADEJA VOLMUT ; BOŠTJAN ŠIMUNIČ
期刊名称：Journal of Physical Education and Sport
印刷版ISSN：2247-8051
电子版ISSN：2247-806X
出版年度：2021
卷号：21
期号：1
页码：180-187
DOI：10.7752/jpes.2021.01025
语种：English
出版社：University of Pitesti
摘要：School recess represents one of the few opportunities during the school day where children can typically engage in freely chosen leisure activities with their peers. An effective way to promote high levels of physical activity and increase the time spent in moderate-to-vigorous physical activity during the recess is in the availability of the sports equipment; however, it is not known if this is effective also in shorter (e.g. < 15-minute) recess periods. Therefore, we aimed to determine the contribution of 15-minute free-play recess, with available sport equipment, in 91 children (6-8 years) to daily physical activity. Physical activity was monitored by an accelerometer to determine the amount of overall, low, moderate, vigorous and moderate-to-vigorous physical activity. Children were randomised in control (CG; N=32) and experimental (EG; N=59) groups. CG followed usual recess while EG had available various but familiar sports equipment. During the recess EG were less inactive, and spend more time in overall, low, moderate, vigorous and moderate-to-vigorous physical activity (p < 0.001) than CG and spend 57.2 (18.0) % of recess time in moderate-to-vigorous physical activity. This was reflected also at daily levels, where EG reached higher overall (7.5 %; p=0.048), low (14.2 %; p=0.010), vigorous (22.3 %; p=0.034) and moderate-to-vigorous physical activity (15.6 %; p=0.024) than CG. Further, 92 % of EG achieved > 60 minutes of moderate-to-vigorous physical activity while only 69 % of CG. We confirmed a positive transfer of recess and daily moderate physical activity levels in a pooled sample and EG (p<0.001) with ~20 % of shared variance. A 15-minute school recess is a valuable contribution to the daily amounts of the children's physical activity. Even more, active recess periods could contribute also to the most recent (2020) WHO physical activity guidelines in limiting sedentary behaviour. Teachers supervising children during school recess should be encouraged to incorporate a range of different sports equipment to encourage children to play freely and to increase the intensity of physical activities during the school recesses.
关键词：MVPA;Accelerometer;Physical Inactivity;School