“…Despite of having administered one of the longest school closures globally, schooling in Slovakia was not adequately prepared for long-term teaching through remote access, which brought fundamental problems, including physical education. School physical education provides a context for regular and structured physical activity participation (Uddin et al, 2020) and represents the only opportunity of engaging in physical activity (Bali, 2016;Reif et al, 2021). According to results of present study, during the second wave of Covid-19 pandemic, on average, 60.55 % (n = 1438) of Slovak adolescents (n = 2375) engaged in high physical activity, with increasingly larger number of Slovak adolescents boys (65.25 %, n = 704), compared to adolescent girls (55.86 %, n = 723), which we consider as a positive finding, however the IPAQ-SF overestimate physical activity levels to a greater extent (from 36 % to 173 %), compared to existing physical activity questionnaires (Lee et al, 2011;, and therefore the absolute physical activity levels must be interpreted with a caution (Grimm et al, 2012;Wanner et al, 2016).…”