Knowledge in adolescent girls and boys related to physically active and healthy lifestyle [Vědomosti adolescentních děv at a chlapc vztahující se k pohybově aktivnímu a zdravému ivotnímu stylu]

BACKGROUND: Knowledge about physically active and healthy lifestyle is one of key factors influencing relationship to physical activity (PA) and to lifetime prevalence of healthy lifestyle in adolescents. OBJECTIVE: The aim of the study was to identify differences in girls' and boys' knowledge about healthy lifestyle and the strength of the association between the stated weekly physical activity and basic knowledge on healthy lifestyle. METHODS: The research involved 14 selected schools in the Katowice region, and 275 girls (15.8 ± 0.9 years) and 220 boys (15.8 ± 0.8 years) participated in the study. The level of knowledge about healthy lifestyle was assessed using the "Comprehensive test on health and physical activity" and the level of weekly physical activity was assessed using the IPAQ – long version, with repeated measurement after six weeks. The associations between knowledge, sex and meeting PA recommendations (at least 3x20 minutes of vigorous and 5x30 min of moderate weekly PA) were analyzed. RESULTS: Girls show better knowledge related to physically active and healthy lifestyle than boys (U = 5.04; p = 0.000; d = 0.493), which was confirmed in a repeated measurement (U = 5.54; p = 0.000; d = 0.505). Statistically and practically significant differences between boys and girls were found in favour of girls in the areas of nutrition, education and also overall. Between knowledge and meeting PA recommendations, no significant associations were found either in boys or girls. The boys declared more weekly PA (in the first measurement 11,386 METs and in the second measurement 11,393 METs on average) than girls (in the first measurement 8,891 METs and in the second measurement 9,992 METs on average). CONCLUSIONS: Basic knowledge on healthy lifestyle is not satisfactory with the regard to the curricular requirements (especially in Physical Education and Biology). Deeper knowledge acquisition about healthy lifestyle requires adapting integral interdisciplinary approach and effective connection between knowledge acquisition about physical activity, diet, and other health and preventive measures and girls' and boys' lifestyle. [VYCHODISKA: Vědomosti o pohybově aktivním a zdravém ivotním stylu jsou jedním z d le itych faktor vztahu k pohybové aktivitě (PA) a celo ivotní prevalence k zdravému ivotnímu stylu u adolescent . CíLE: Cílem vyzkumu bylo zjistit rozdíly ve vědomostech děv at a chlapc o zdravém ivotním stylu a sílu vztahu mezi deklarovanou tydenní pohybovou aktivitou a základními vědomostmi vztahujících se ke zdravému ivotnímu stylu. METODIKA: