To achieve a healthy lifestyle, adolescents must be physically active and meet physical activity (PA) guidelines. One of the most natural ways of increasing the amount of PA is active commuting (AC) to school. Recent reviews suggest that peer norms have the potential to shape PA during adolescence in particular. Thus, our primary aim was to investigate whether Czech adolescents misperceive their peers' AC behaviors and attitudes towards AC. Our dataset comprised cross-sectional data on 1586 adolescents aged 11-15 years. Basic descriptive statistics, chi-square tests, and correlation analyses were used to analyze the data. Regarding traveling to school, 68% of the Czech adolescents in this study are daily active commuters (walking, cycling, or riding a scooter or skateboard). Less than half of the respondents believed that most of their classmates were commuting to school actively almost daily. The students who believed that most of their classmates commuted to school actively had significantly higher chances of being regular active commuters themselves. The results showed that most of the Czech adolescents misperceived the AC norms of their peers. Thus, there could be potential in using a social norms approach aimed at increasing the level of AC in Czech adolescents through targeted interventions.

Institute of Active Lifestyle Faculty of Physical Culture Palacký University 771 11 Olomouc Czech Republic

Institute of Active Lifestyle Faculty of Physical Culture Palacký University 771 11 Olomouc Czech Republic Department of Health Psychology and Research Methodology Faculty of Medicine P J Safarik University Trieda SNP 1 040 11 Košice Slovakia

Institute of Active Lifestyle Faculty of Physical Culture Palacký University 771 11 Olomouc Czech Republic Department of Physical Education and Sport Faculty of Science Humanities and Education Technical University of Liberec 461 17 Liberec Czech Republic

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