To understand the environmental determinants of physical activity (PA), precise spatial localization is crucial. This cross-sectional study focuses on the spatiotemporal distribution of PA among Czech adolescents (n = 171) using Global Positioning System loggers and accelerometers. The results showed that adolescents spent most of their time in sedentary behavior, with 57.2% and 58.5% of monitored time at home and school, respectively. The park and playground had the lowest proportion of sedentary behavior but also the lowest amount of moderate to vigorous PA (MVPA). However, when considering the time spent in each domain, the highest proportion of MVPA was seen in publicly accessible playgrounds (13.3% of the time). Chi-square analysis showed that the relative distribution of different PA intensities did not differ across spatial domains. Based on these results, the authors propose 2 key strategies for increasing MVPA in adolescents: Increase the time spent in activity-supportive environments, such as parks and playgrounds, and design techniques to increase MVPA at home and school settings.

Department of Sport Science and Clinical Biomechanics University of Southern Denmark Odense Denmark

Faculty of Physical Culture Palacký University Olomouc Olomouc Czech Republic

Faculty of Science Humanities and Education Technical University of Liberec Liberec Czech Republic

Faculty of Science Palacký University Olomouc Olomouc Czech Republic

Herbert Wertheim School of Public Health and Human Longevity Science University of California San Diego San Diego CA USA

School of Sport and Recreation Auckland University of Technology Auckland New Zealand

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Raising active children: how family and school shape health-promoting physical activity-findings from the FAMIPASS study